Engine Overhaul: Group 11B

11B-1
GROUP 11B
ENGINE OVERHAUL
CONTENTS
GENERAL SPECIFICATIONS . . . . . . 11B-2 OIL PAN AND TIMING CHAIN CASE 11B-25
REMOVAL AND INSTALLATION . . . . . . . . 11B-25
SERVICE SPECIFICATIONS. . . . . . . 11B-2
TIMING CHAIN . . . . . . . . . . . . . . . . . . 11B-31
FASTENER TIGHTENING REMOVAL AND INSTALLATION . . . . . . . . 11B-31
SPECIFICATIONS . . . . . . . . . . . . . . . 11B-4 INSPECTION. . . . . . . . . . . . . . . . . . . . . . . . 11B-36
SEALANTS AND ADHESIVES . . . . . 11B-6 CAMSHAFT . . . . . . . . . . . . . . . . . . . . 11B-40

SPECIAL TOOLS. . . . . . . . . . . . . . . . 11B-8 INSPECTION. . . . . . . . . . . . . . . . . . . . . . . . 11B-43
GENERATOR AND IGNITION CYLINDER HEAD AND VALVES. . . . 11B-46

SYSTEM . . . . . . . . . . . . . . . . . . . . . . . 11B-10 REMOVAL AND INSTALLATION . . . . . . . . 11B-46
REMOVAL AND INSTALLATION . . . . . . . . 11B-10 INSPECTION. . . . . . . . . . . . . . . . . . . . . . . . 11B-50
THROTTLE BODY AND EGR OIL PUMP CHAIN. . . . . . . . . . . . . . . . 11B-54

SYSTEM . . . . . . . . . . . . . . . . . . . . . . . 11B-14 REMOVAL AND INSTALLATION . . . . . . . . 11B-54
PISTON AND CONNECTING ROD . . 11B-59
INTAKE MANIFOLD AND FUEL REMOVAL AND INSTALLATION . . . . . . . . 11B-59
SYSTEM . . . . . . . . . . . . . . . . . . . . . . . 11B-17
INSPECTION. . . . . . . . . . . . . . . . . . . . . . . . 11B-66
CRANKSHAFT AND CYLINDER
EXHAUST MANIFOLD. . . . . . . . . . . . 11B-21 BLOCK . . . . . . . . . . . . . . . . . . . . . . . . 11B-68
INSPECTION. . . . . . . . . . . . . . . . . . . . . . . . 11B-73
WATER HOSE AND PIPE . . . . . . . . . 11B-22
11B-2 ENGINE OVERHAUL
GENERAL SPECIFICATIONS
GENERAL SPECIFICATIONS
M1113000202601
Descriptions Specifications
Engine type 4B11
Bore × stroke mm (in) 86.0 (3.39) × 86.0 (3.39)
Total displacement cm3 (cu in) 1,998 (121.9)
Combustion chamber Pent-roof type
Number of cylinders 4
Valve mechanism Type DOHC
Intake valve 8
Exhaust valve 8
Compression ratio 10.0
Valve timing Intake valve Opens 25°BTDC − 0°BTDC <Vehicles for CALIFORNIA>,
28°BTDC − 3°BTDC <Except vehicles for CALIFORNIA>
Closes 48°ABDC − 23°ABDC <Vehicles for CALIFORNIA>,
45°ABDC − 20°ABDC <Except vehicles for CALIFORNIA>
Exhaust valve Opens 24°BBDC − 44°BBDC <Vehicles for CALIFORNIA>,
21°BBDC − 41°BBDC <Except vehicles for CALIFORNIA>
Closes 0°ATDC − 20°ATDC <Vehicles for CALIFORNIA>,
3°ATDC − 23°ATDC <Except vehicles for CALIFORNIA>
Fuel injection system type Electronic control MPI
Ignition system type Electronic spark-advance control type (4-coil type)
Generator type Alternating current system (with built-in IC regulator)
Starter motor type Reduction drive type
SERVICE SPECIFICATIONS
M1113000303162
Item Standard value Limit

Timing chain
Valve clearance mm (in) Intake 0.20 ± 0.03 (0.008 ± 0.001) −
Exhaust 0.30 ± 0.03 (0.012 ± 0.001) −
Camshaft
Cam height of camshaft mm Intake 43.25 (1.703) 42.75 (1.683)
(in) Exhaust 45.00 (1.772) 44.50 (1.752)
Camshaft oil clearance mm (in) 0 − 0.032 −
(0 − 0.0013)
Cylinder head and valves
Distortion of cylinder head bottom mm (in) Within 0.05 (0.002) 0.2 (0.008)
Grinding limit of cylinder head bottom mm (in) − 0.2 (0.008)
Overall height of cylinder head mm (in) 128.5 (5.06) −
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ENGINE OVERHAUL
SERVICE SPECIFICATIONS
11B-3
Overall length of valve mm (in) Intake 113.18 (4.456) 112.68 (4.436)
Exhaust 105.89 (4.169) 105.39 (4.149)
Valve margin mm (in) Intake 1.022 (0.0402) 0.522 (0.0206)
Exhaust 1.094 (0.0431) 0.594 (0.0234)
Free height of valve spring mm (in) 47.2 (1.858) 46.2(1.819)
Squareness of valve spring 2° or less 4°
Clearance between valve guide Intake 0.020 − 0.047 0.10 (0.004)
and valve stem mm (in) (0.0008 − 0.0019)
Exhaust 0.030 − 0.054 0.15 (0.006)
(0.0012 − 0.0021)
Valve seat contact width mm Intake 1.16 − 1.46 (0.046 − 0.058) −
(in) Exhaust 1.35 − 1.65 (0.053 − 0.065) −
Oversize rework dimensions of 0.25 oversize 11.23 − 11.25 −
valve guide hole mm (in) diameter (0.442 − 0.443)
Intake oversize rework 0.3 oversize 36.22 − 36.24 −
dimensions of valve seat hole diameter (1.426 − 1.427)
mm (in)
Exhaust oversize rework 0.3 oversize 30.22 − 30.24 −
dimensions of valve seat hole diameter (1.190 − 1.191)
mm (in)
Valve guide press-in height mm (in) 14.6 − 15.2 −
(0.57 − 0.60)
Piston and connecting rod
Piston pin press-fit load N (lbf) 7,500 − 17,500 −
(1,686 − 3,934)
Clearance between piston ring Number 1 0.03 − 0.07 (0.001 − 0.003) 0.1 (0.004)
and ring groove mm (in) Number 2 0.03 − 0.07 (0.001 − 0.003) 0.1 (0.004)
Piston ring end gap mm (in) Number 1 0.15 − 0.28 (0.006 − 0.011) 0.8 (0.03)
Number 2 0.25 − 0.40 (0.010 − 0.016) 0.8 (0.03)
Oil 0.10 − 0.35 (0.004 − 0.014) 1.0 (0.004)
Clearance of connecting rod big end thrust mm (in) 0.10 − 0.25 (0.004 − 0.010) 0.4 (0.016)
Outside diameter of connecting rod bolt mm (in) − 0.1 (0.004)
Connecting rod bearing oil clearance mm (in) 0.018 − 0.045 0.1 (0.004)
(0.0007 − 0.0018)
Crankshaft and cylinder block
Underhead length of bearing cap bolt mm (in) 75.5 − 76.5 (2.972 − 3.012) −
Crankshaft end play mm (in) 0.05 − 0.25 (0.002 − 0.010) 0.4 (0.016)
Crankshaft journal oil clearance mm (in) 0.012 − 0.030 0.1 (0.004)
(0.0005 − 0.0012)
Distortion of cylinder block top surface mm (in) Within 0.05 (0.002) 0.2 (0.008)
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FASTENER TIGHTENING SPECIFICATIONS

Grinding limit of cylinder block top surface mm (in) − 0.2 (0.008)
Cylinder block cylinder bore mm (in) 86 (3.4) −
Cylindricity of cylinder block mm (in) 0.15 (0.006) −

M1113023405155
Item Specification
Generator and ignition system
Idler pulley bolt 48 ± 7 N⋅m (36 ± 4 ft-lb)
Auto tensioner 22 ± 4 N⋅m (17 ± 2 ft-lb)
Crankshaft bolt 210 N⋅m (155 ft-lb)
Generator nut 44 ± 10 N⋅m (32 ± 7 ft-lb)
Generator bolt 44 ± 10 N⋅m (32 ± 7 ft-lb)
Ignition coil bolt 10 ± 2 N⋅m (89 ± 17 in-lb)
Spark plug 25 ± 5 N⋅m (18 ± 3 ft-lb)
Power steering pump bracket bolt (M8) 26 ± 3 N⋅m (19 ± 2 ft-lb)
Power steering pump bracket bolt (M10) 44 ± 8 N⋅m (32 ± 5 ft-lb)
Throttle body and EGR system
Vacuum pipe assembly bolt 11 ± 1 N⋅m (98 ± 8 in-lb)
Throttle body bolt 9.5 ± 2.5 N⋅m (84 ± 22 in-lb)
Exhaust gas recirculation valve support bolt 20 ± 2 N⋅m (15 ± 1 ft-lb)
Exhaust gas recirculation pipe bolt 20 ± 2 N⋅m (15 ± 1 ft-lb)
Exhaust gas recirculation support stay A bolt 20 ± 2 N⋅m (15 ± 1 ft-lb)
Exhaust gas recirculation support stay B bolt 20 ± 2 N⋅m (15 ± 1 ft-lb)
Exhaust gas recirculation valve bolt 24 ± 3 N⋅m (18 ± 1 ft-lb)
Manifold absolute pressure (MAP) sensor screw 4.0 ± 1.0 N⋅m (36 ± 8 in-lb)
Solenoid valve screw 4.0 ± 1.0 N⋅m (36 ± 8 in-lb)
Intake manifold and fuel system
Oil dipstick guide bolt 10 ± 2 N⋅m (89 ± 17 in-lb)
Injector protector rear bolt 3.5 ± 1.5 N⋅m (15 ± 13 in-lb) → 20 ± 2 N⋅m (15 ±
1 ft-lb)
Fuel rail bolt 3.5 ± 1.5 N⋅m (15 ± 13 in-lb) → 20 ± 2 N⋅m (15 ±
1 ft-lb)
Intake manifold bolt and nut 3.5 ± 1.5 N⋅m (15 ± 13 in-lb) → 20 ± 2 N⋅m (15 ±
1 ft-lb)
Intake manifold stay bolt 20 ± 2 N⋅m (15 ± 1 ft-lb)
Injector protector front bolt 3.5 ± 1.5 N⋅m (15 ± 13 in-lb) → 20 ± 2 N⋅m (15 ±
1 ft-lb)
Generator bracket bolt 44 ± 8 N⋅m (33 ± 5 ft-lb)
Knock sensor bolt 20 ± 2 N⋅m (15 ± 1 ft-lb)
Engine oil pressure switch 10 ± 2 N⋅m (89 ± 17 in-lb)
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ENGINE OVERHAUL
11B-5
Item Specification
Exhaust manifold
Exhaust manifold upper cover bolt 8.0 ± 2.0 N⋅m (71 ± 17 in-lb)
Exhaust manifold lower cover bolt 8.0 ± 2.0 N⋅m (71 ± 17 in-lb)
Exhaust manifold nut 49 ± 5 N⋅m (36 ± 3 ft-lb)
Exhaust manifold bracket bolt 41 ± 10 N⋅m (30 ± 7 ft-lb)
Crankshaft position sensor bolt 11 ± 1 N⋅m (98 ± 8 in-lb)
Crankshaft position sensor cover bolt 11 ± 1 N⋅m (98 ± 8 in-lb)
Water hose and pipe
Water inlet fitting bolt 24 ± 3 N⋅m (18 ± 1 ft-lb)
Water outlet fitting bolt 24 ± 3 N⋅m (18 ± 1 ft-lb)
Thermostat housing bolt 24 ± 3 N⋅m (18 ± 1 ft-lb)
Engine hanger bolt 28 ± 8 N⋅m (21 ± 5 ft-lb)
Engine coolant temperature sensor 30 ± 9 N⋅m (22 ± 6 ft-lb)
Water pump bolt 24 ± 3 N⋅m (18 ± 1 ft-lb)
Water pipe nut 24 ± 3 N⋅m (18 ± 1 ft-lb)
Camshaft position sensor 11 ± 1 N⋅m (98 ± 8 in-lb)
Oil pan and timing chain case
Cylinder head cover bolt 3.0 ± 1.0 N⋅m (27 ± 8 in-lb)
→ 5.5 ± 0.5 N⋅m (49 ± 4 in-lb)
Timing chain case bolt (M6) 10 ± 2 N⋅m (89 ± 17 in-lb)
Timing chain case bolt (M8 × 10) 13 ± 1 N⋅m (115 ± 8 in-lb)
Timing chain case bolt (M8 × 28) 24 ± 4 N⋅m (18 ± 2 ft-lb)
Oil pan bolt (M6) 10 ± 2 N⋅m (89 ± 17 in-lb)
Oil pan bolt (M8) 29 ± 2 N⋅m (21 ± 1 ft-lb)
Air compressor bracket bolt 23 ± 6 N⋅m (17 ± 4 ft-lb)
Oil drain plug 39 ± 5 N⋅m (29 ± 3 ft-lb)
Oil filter 14 ± 2 N⋅m (124 ± 17 in-lb)
PCV valve 2.5 ± 0.4 N⋅m (22 ± 3 in-lb)
Engine support bracket assembly bolt 48 ± 6 N⋅m (35 ± 4 ft-lb)
Timing chain
V.V.T. intake sprocket bolt 59 ± 5 N⋅m (44 ± 3 ft-lb)
V.V.T. exhaust sprocket bolt 59 ± 5 N⋅m (44 ± 3 ft-lb)
Timing chain tensioner bolt 10 ± 2 N⋅m (89 ± 17 in-lb)
Tensioner lever bolt 10 ± 2 N⋅m (89 ± 17 in-lb)
Timing chain guide bolt 10 ± 2 N⋅m (89 ± 17 in-lb)
Camshaft
Engine oil control valve (OCV) bolt 10 ± 2 N⋅m (89 ± 17 in-lb)
Camshaft bearing cap bolt (M6) 12 ± 1 N⋅m (107 ± 8 in-lb)
Front camshaft bearing cap bolt (M8) 17 ± 3 N⋅m (14 ± 2 ft-lb)
→ 30 ± 2 N⋅m (22 ± 1 ft-lb)
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SEALANTS AND ADHESIVES
Item Specification
Cylinder head and valves
Cylinder head bolt 35 ± 2 N⋅m (26 ± 1 ft-lb) → +90°+90°
Oil pump chain
Drive plate bolt 40 N⋅m (30 ft-lb) → 130 N⋅m (96 ft-lb)
Flywheel bolt 40 N⋅m (30 ft-lb) → 130 N⋅m (96 ft-lb)
Oil pump case bolt 26 ± 2 N⋅m (19 ± 1 ft-lb)
Oil pump sprocket bolt 23 ± 2 N⋅m (17 ± 1 ft-lb)
Oil pump tensioner lever bolt 10 ± 2 N⋅m (89 ± 17 in-lb)
Oil pump chain guide bolt 10 ± 2 N⋅m (89 ± 17 in-lb)
Ladder frame bolt 28 ± 2 N⋅m (21 ± 1 ft-lb)
Piston and connecting rod
Connecting rod cap bolt 5.0 N⋅m (44 in-lb) → 20 N⋅m (15 ft-lb) → +90°
Crankshaft and cylinder block
Crankshaft sensing ring bolt 11 ± 1 N⋅m (98 ± 8 in-lb)
Bearing cap bolt 26.5 ± 2.0 N⋅m (20 ± 1 ft-lb) → +45°
NEW TIGHTENING METHOD BY USING PLASTIC REGION TIGHTENING BOLT
2. Bearing cap bolt
.
Plastic region tightening bolts are used in some parts

of the engine. Install these bolts according to the 3. Connecting rod cap bolt
method described in the body of the manual because • Tightening method
the tightening method of these bolts are different After tightening to the specified torque, further
from the conventional method. The service limit is tighten 45° and 90°, or 180° (90° + 90°). Follow
determined for these bolts. Be sure to strictly follow the tightening method described in the body of
the service limit described in the body of the manual. the manual because the tightening method differs
• Parts to be used from part to part.
1. Cylinder head bolt

M1113000503144
Points of application Specified sealant / adhesive

Drive plate bolt Three bond 1324 or equivalent
Oil pan Three bond 1227D,
Three bond 1217G (Mitsubishi Part No,1000A923),
Three bond 1207F (Mitsubishi Part No,1000A992),
LOCTITE 5900, LOCTITE 5970
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ENGINE OVERHAUL
11B-7
Points of application Specified sealant / adhesive
Cylinder head cover Three bond 1227D,
(matching area of the cylinder head and the Three bond 1217G (Mitsubishi Part No,1000A923),
timing chain case assembly) LOCTITE 5900
Ladder frame
Cylinder head gasket
(matching area of the cylinder block and the
cylinder head)
Timing chain case
Engine coolant temperature sensor Three bond 1324N, LOCTITE 262
Engine oil pressure switch Three bond 1141J, Three bond 1212D, Three bond 1215
NOTE: The number in square brackets shows the DISASSEMBLY
part number. Parts assembled with FIPG can be easily disassem-
bled without using a special method. In some cases,
.
LIQUID GASKET (FIPG)

however, it is necessary to lightly tap parts with a
FIPG is used for some parts in the engine. It is nec-
wooden hammer or similar tool to break sealant
essary to pay attention to an application amount,
between mating surfaces. Or lightly driving a smooth
application procedure and applied surface condition
and thin gasket scraper in mating surfaces is useful,
for this gasket to fully achieve its purpose.
but full care must be exercised not to damage mating
Too small amount causes leakage while too much
surfaces. As special tool oil pan FIPG cutter
amount squeezes out to block or narrow water and
(MD998727) is set, use this tool.
oil passages. Therefore, it is absolutely essential to
apply a correct amount of liquid sealant continuously .
without break to eliminate leakage from joints. CLEANING OF GASKET SURFACE

FIPG used for engine parts hardens reacting with Completely remove all deposits from the gasket sur-
moisture in the air, and is usually used for metal face with a gasket scraper or wire brush. Make sure
flanges. that the surface to which FIPG is applied is smooth.
The gasket surface must be free from grease and
foreign substances. Be sure to remove old FIPG that
.
CAUTION
has entered mounting holes and screw holes.
Reapply the FIPG with care to the followings.
1. Completely remove the old FIPG including the .
residue in gaps of parts. APPLICATION PROCEDURE

2. Using Mitsubishi genuine parts cleaner Apply FIPG in a determined diameter and continu-
(MZ100387) or equivalent, degrease the FIPG ously without break. Completely enclose the periph-
application surface carefully. ery of mounting holes. FIPG can be wiped off if it is
3. According to the FIPG application proce- not hardened. Install parts in place while FIPG is still
dures, apply it accurately. wet. Take care not to allow FIPG to adhere to other
locations than necessary locations during installa-
.
tion. Do not pour oil or water on applied locations or
do not start the engine until sufficient time (approxi-
mately one hour) passes. The application procedure
of FIPG may differ depending on areas. Follow the
procedure in the body of the manual to apply FIPG.
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SPECIAL TOOLS
SPECIAL TOOLS
M1113000602591
Tool Tool number and Supersession Application

name
MB991883 − Securing of drive plate and
Flywheel stopper flywheel
MB991883
MB992106 − Installation of O-ring on injector

O-ring installer injection nozzle side
B992106
MB991396 − Removal and installation of oil

Oil filter wrench filter
B991396
MD998727 MD998727-01 Removal of oil pan

Oil pan FIPG cutter
D998727
MB991448 MB991448-01 Press fit of front oil seal

Bushing remover and
installer base
MD998735 MD998735-01 Compression of valve spring

Valve spring
compressor
MB992089 MB992089-01
Retainer holder C
MB992085 − Extraction of valve stem seal

Valve stem seal pliers
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ENGINE OVERHAUL
SPECIAL TOOLS
11B-9
Tool Tool number and Supersession Application
name
MD998737 MD998737-01 Installation of valve stem seal
Valve stem seal
installer
MD998780 MIT216941 Extraction and press fit of piston

Piston pin setting tool pin
MB991659 −
Guide D
MB991614 General service tool Installation of crankshaft bearing

Angle gauge cap bolt and installation of
balancer shaft module bolt
MB991614
MD998718 MD998718-01 Press fit of rear oil seal

Rear oil seal installer
MB991346 − Removal and installation of oil

Top cover wrench pump sprocket
B991367
MB991398 − Removal and installation of spark

Spark plug wrench plug
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GENERATOR AND IGNITION SYSTEM

REMOVAL AND INSTALLATION
M1113001002321
10 ± 2 N·m
89 ± 17 in-lb
9
25 ± 5 N·m
18 ± 3 ft-lb
10
26 ± 3 N·m
19 ± 2 ft-lb
44 ± 8 N·m
32 ± 5 ft-lb
5
8 4
2
48 ± 7 N·m
36 ± 4 ft-lb
22 ± 4 N·m
17 ± 2 ft-lb
7 1
44 ± 10 N·m
6 48 ± 7 N·m 32 ± 7 ft-lb
36 ± 4 ft-lb 44 ± 10 N·m
210 N·m 32 ± 7 ft-lb
155 ft-lb
AK600613AJ
Removal steps Removal steps (Continued)

1. Idler pulley <<A>> >>B<< 6. Crankshaft pulley bolt
2. Idler pulley >>B<< 7. Washer
>>C<< 3. Generator >>B<< 8. Crankshaft pulley
>>C<< 4. Power steering pump bracket 9. Ignition coil
5. Auto tensioner <> >>A<< 10. Spark plug
Required Special Tools:

• MB991398: Spark Plug Wrench • MB991883: Flywheel Stopper
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ENGINE OVERHAUL
11B-11
REMOVAL SERVICE POINT
.
<<A>> CRANKSHAFT PULLEY BOLT REMOVAL

1. Use special tool MB991883 to secure the drive plate or
flywheel.
MB991883 2. Remove the crankshaft pulley bolt.
AK502869 AD
<> SPARK PLUG REMOVAL

Using special tool MB991398, removal the spark plug.
MB991398
Spark plug
AK600875AC
INSTALLATION SERVICE POINTS

.
>>A<< SPARK PLUGS INSTALLATION

Using special tool MB991398, tighten the spark plug to the
specified torque.
MB991398 Specified torque: 25 ± 5 N⋅m (18 ± 3 ft-lb)
Spark plug
AK600875AC
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>>B<< CRANKSHAFT PULLEY / WASHER /

CRANKSHAFT PULLEY BOLT INSTALLATION
flywheel.
MB991883
AK503335 AD
: Wipe clean with a rag. 2. Wipe off the dirt on the washer and on the thread hole of the
: Wipe clean with a rag and degrease. crankshaft using a rag.
: Wipe clean with a rag, degrease and 3. Wipe off the dirt on the crankshaft pulley and the crankshaft
apply a small amount of engine oil.
sprocket using a rag, and then remove the grease from the
portion shown in the illustration.
NOTE: Remove grease to prevent the coefficient of friction
of the pressing portion from declining due to adhesion of oil.
Washer Crankshaft 4. Install the crankshaft pulley.
sprocket
5. Apply an appropriate and minimum amount of engine oil to
the threaded portion of the crankshaft and lower part of the
flange.
6. With off the chamfered side on the inside of the washer
facing the bolt top, install the washer to the crankshaft pulley
bolt.
Crankshaft Crankshaft 7. Tighten the crankshaft pulley bolt to the specified torque.
pulley bolt
Specified torque: 210 N⋅m (155 ft-lb)
Crankshaft pulley
Engine front
AK602911AD
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ENGINE OVERHAUL
11B-13
>>C<< GENERATOR / POWER STEERING PUMP
BRACKET INSTALLATION
Power steering 1. Temporarily tighten power steering pump bracket bolts.
pump bracket
CAUTION
1 Always loosen the power steering pump bracket bolt, and
temporarily install the generator. Then tighten each bolt.
2. Loosen the power steering pump bracket bolts and make
the power steering pump bracket unfixed.
3. Temporarily install the generator with the generator bolts.
4. Tighten them to the specified torque according to the order
as illustrated.
Generator
Specified torque
Power steering pump bracket:
M8 26 ± 3 N⋅m (19 ± 2 ft-lb)
5 80 mm M10 44 ± 8 N⋅m (32 ± 5 ft-lb)
2 (3.15 in) Generator: 44 ± 10 N⋅m (32 ± 7 ft-lb)
80 mm
3 (3.15 in)
4
AK503383AG
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THROTTLE BODY AND EGR SYSTEM

M1113032700472
11 ± 1 N·m
98 ± 8 in-lb
1
11 ± 1 N·m
98 ± 8 in-lb
3 9.5 ± 2.5 N·m

84 ± 22 in-lb
6
2
7 12
8 20 ± 2 N·m
15 ± 1 ft-lb
13 11
16 24 ± 3 N·m
14 20 ± 2 N·m 18 ± 1 ft-lb
15 ± 1 ft-lb
18
9
10
17
20 ± 2 N·m
15
15 ± 1 ft-lb
20 20 ± 2 N·m
19 15 ± 1 ft-lb
5
4.0 ± 1.0 N·m
36 ± 8 in-lb
22 21 4.0 ± 1.0 N·m

36 ± 8 in-lb
AKA00523AB

1. Vacuum pipe assembly >>B<< 13.EGR valve support gasket
2. Purge hose 14.EGR support stay A
3. Chamber 15.EGR support stay B
4. Purge hose 16.EGR valve support
5. Water hose >>B<< 17.EGR inlet pipe gasket
6. Throttle body stay 18.EGR inlet pipe
7. Throttle body 19.Solenoid valve
8. Throttle body gasket 20.O-ring
>>C<< 9. EGR valve >>A<< 21.Manifold absolute pressure (MAP)
>>C<< 10.EGR valve gasket sensor
11. EGR pipe 22.O-ring
>>B<< 12.EGR pipe gasket
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ENGINE OVERHAUL
11B-15
.
>>A<< MANIFOLD ABSOLUTE PRESSURE (MAP)

SENSOR INSTALLATION
CAUTION
• Install the manifold absolute pressure (MAP) sensor,
taking care not to give a shock to it.
• Do not use a manifold absolute pressure (MAP) sensor
that has been dropped.
.
>>B<< EGR INLET PIPE GASKET / EGR VALVE

SUPPORT GASKET / EGR PIPE GASKET
INSTALLATION
1. Temporarily tighten each part so that the protrusion of each
Exhaust gas
recirculation gasket is positioned as illustrated.
Protrusion
inlet pipe
Exhaust gas
recirculation valve AK503321AD
Exhaust gas Protrusion

recirculation pipe
Protrusion AK503320AD
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2. Tighten mounting bolts to the specified torque of 20 ± 2 N⋅m

(15 ± 1 ft-lb) in the order shown in the illustration.
8
6 3
4 5
7
1
10 2
9 AK503289AD
>>C<< EGR VALVE GASKET INSTALLATION

Exhaust gas Install the EGR valve gasket with the diagonally shaded area
recirculation valve used as the illustrated position so as not to confuse the front
with the back.
Shaded position
AK503319AE
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ENGINE OVERHAUL
INTAKE MANIFOLD AND FUEL SYSTEM
11B-17
M1113032501114
3.5 ± 1.5 N·m 20 ± 2 N·m

31 ± 13 in-lb 15 ± 1 ft-lb
6
11 3
1 8
9
2 7
16 5
10 ± 2 N·m 10 4
89 ± 17 in-lb 3.5 ± 1.5 N·m 20 ± 2 N·m
17 15 31 ± 13 in-lb 15 ± 1 ft-lb
14
3.5 ± 1.5 N·m 20 ± 2 N·m

31 ± 13 in-lb 15 ± 1 ft-lb
13
3.5 ± 1.5 N·m 20 ± 2 N·m
31 ± 13 in-lb 15 ± 1 ft-lb
3.5 ± 1.5 N·m 20 ± 2 N·m
31 ± 13 in-lb 15 ± 1 ft-lb
19 20 ± 2 N·m
15 ± 1 ft-lb
10 ± 2 N·m
20 89 ± 17 in-lb
44 ± 8 N·m 20 ± 2 N·m
33 ± 5 ft-lb 15 ± 1 ft-lb
12
18
AKA00470 AB

1. Oil dipstick rod 11. Fuel rail
2. O-ring >>D<< 12.Intake manifold stay
>>G<< 3. Injector protector rear 13.Injector protector front
>>G<< 4. Bracket >>C<< 14.Intake manifold
>>G<< 5. Bracket 15.Intake manifold gasket
>>G<< 6. Fuel rail assembly 16.Oil dipstick guide
>>F<< 7. Injection support 17.O-ring
8. O-ring >>B<< 18.Generator bracket
>>F<< 9. Injector 19.Knock sensor
>>E<< 10.O-ring >>A<< 20.Engine oil pressure switch
Required Special Tool:

• MB992106: O-ring Installer
TSB Revision

.
>>A<< ENGINE OIL PRESSURE SWITCH INSTAL-

LATION
CAUTION
1 mm (0.004 inch) • Do not allow sealant to squeeze out to the screw tip.
• Do not exceed the specified torque.
5 mm (0.020 inch) 1. Completely remove sealant adhering to the engine oil
pressure switch and cylinder block threaded holes.
2. Apply sealant (Three bond 1212D, Three bond 1215 or
equivalent) of 5 mm to the threaded portion of the engine oil
pressure switch shown in the illustration.
3. Tighten the engine oil pressure switch to the cylinder block
to the specified torque.
AK600888AE
Specified torque: 10 ± 2 N⋅m (89 ± 17 in-lb)
.
>>B<< GENERATOR BRACKET INSTALLATION

B A
Tighten the Generator bracket to the specified torque.
Specified torque: 44 ± 8 N⋅m (33 ± 5 ft-lb)
NOTE: Be careful when install mounting bolts as they are dif-
A B
ferent in length. See illustration for bolt locations.
A:
M10 × 40 mm (1.6 in)
B:
M10 × 35 mm (1.4 in)
B
A A AK503595AC
>>C<< INTAKE MANIFOLD INSTALLATION

CAUTION
Temporarily tighten the inlet manifold because there is a
bolt tightening procedure for the inlet manifold, delivery
pipe and injector protector.
Install the inlet manifold and temporarily tighten bolts.
.
>>D<< INTAKE MANIFOLD STAY INSTALLATION

Make sure that the intake manifold stay is in intimate contact
with the intake manifold and cylinder block boss before tighten-
ing it to the specified torque.
AK502727AD
TSB Revision
ENGINE OVERHAUL
11B-19
>>E<< O-RING INSTALLATION
CAUTION
Do not allow engine oil to enter the fuel rail.
When inserting an O-ring into the injector on the injection noz-
zle side, use special tool MB992106 to gradually expand the
O-ring
O-ring, and fit it in place.
MB992106
AK600790 AC
>>F<< INJECTOR AND INJECTOR SUPPORT

INSTALLATION
1. Apply spindle oil or gasoline to the O-ring of the injector.
2. Insert the injector into the fuel rail while rotating the injector
from side to side, taking care not to damage the O-ring.
3. Check that the injector rotates smoothly. If it does not rotate
smoothly, the O-ring may be caught. Remove the injector
and check the O-ring for damage. Then, insert it again into
the fuel rail and check.
4. Make sure that the protrusion of the injector is at the center
as shown in the illustration.
AK502744
5. Securely assemble the injector to the injector groove and

fuel rail collar.
AK800066
TSB Revision
>>G<< FUEL RAIL ASSEMBLY / BRACKET /

INJECTOR PROTECTOR REAR INSTALLATION
1. Install the fuel rail assembly, bracket and injector protector
on the cylinder head.
2. Tighten mounting bolts together with temporarily tightened
inlet manifold mounting bolts in the order shown in the
6 7
illustration.
8 4 5 3. Tighten the delivery pipe assembly, bracket, injector
11
2 3 protector rear and inlet manifold in the order shown in the
9 1 10 illustration.
Temporarily torque: 3.5 ± 1.5 N⋅m (31 ± 13 in-lb)
AK603524 AC Specified torque: 20 ± 2 N⋅m (15 ± 1 ft-lb)
TSB Revision
ENGINE OVERHAUL
EXHAUST MANIFOLD
11B-21
EXHAUST MANIFOLD
M1113004902099
8.0 ± 2.0 N·m

71 ± 17 in-lb 5
49 ± 5 N·m
7
36 ± 3 ft-lb
11 ± 1 N·m
98 ± 8 in-lb
8 3
4
6 8.0 ± 2.0 N·m

71 ± 17 in-lb
11 ± 1 N·m
98 ± 8 in-lb
1
2
41 ± 10 N·m
30 ± 7 ft-lb
41 ± 10 N·m
30 ± 7 ft-lb
AKA004345 AB

1. Exhaust manifold bracket 5. Exhaust manifold upper cover
2. Crankshaft position sensor cover 6. Exhaust manifold lower cover
>>A<< 3. Crankshaft position sensor 7. Exhaust manifold
4. O-ring 8. Exhaust manifold gasket
TSB Revision
WATER HOSE AND PIPE

.
>>A<< CRANKSHAFT POSITION SENSOR

INSTALLATION
CAUTION
• Do not apply a force such as torsion or twist to the
O-ring during assembly of the sensor.
• Assemble the sensor, taking care not to give a shock to
it.
• Do not use a sensor that has been dropped.
Tighten the crankshaft position sensor to the specified torque.
WATER HOSE AND PIPE

M1113032900573
24 ± 3 N·m
10 18 ± 1 ft-lb
30 ± 9 N·m
11 12 22 ± 6 ft-lb 4
5 24 ± 3 N·m
18 ± 1 ft-lb
3
24 ± 3 N·m 1
28 ± 8 N·m 15 18 ± 1 ft-lb
21 ± 5 ft-lb
16 7 6
17
24 ± 3 N·m 24 ± 3 N·m
18 ± 1 ft-lb 18 ± 1 ft-lb
11 ± 1 N·m 2
98 ± 8 in-lb 8
9
18
19
11 ± 1 N·m
98 ± 8 in-lb
13
14
AK802148 AB

1. Water hose >>D<< 3. Engine coolant temperature sensor
2. Water hose <for California> 4. Water outlet fitting
TSB Revision
ENGINE OVERHAUL
WATER HOSE AND PIPE
11B-23
Removal steps (Continued)
>>C<< 5. Outlet fitting gasket
6. Water inlet fitting
>>B<< 7. Thermostat
>>A<< 8. Thermostat housing
9. Thermostat housing gasket
>>A<< 10. Water pipe assembly
11. Water pipe gasket
12. O-ring
13. Water pump assembly
14. Water pump gasket
15. Engine hanger
16. Intake camshaft position sensor
17. O-ring
18. Exhaust camshaft position sensor
19. O-ring

.
>>A<< THERMOSTAT HOUSING / WATER PIPE

ASSEMBLY / WATER PIPE GASKET INSTALLA-
TION
1. Assemble the thermostat housing and water pipe
2. Install the thermostat housing gasket.
3. Install a new water pipe gasket so that the tab is positioned
as shown in the illustration.
Tab
4. Temporarily tighten them to the cylinder head and water
pump. Then tighten them to the specified torque.
AK703291AC
>>B<< THERMOSTAT INSTALLATION

Install the thermostat with the jiggle-valve facing almost straight
upwards.
Jiggle valve
AK304916 AC
TSB Revision
WATER HOSE AND PIPE
>>C<< WATER OUTLET FITTING GASKET

INSTALLATION
Install a new gasket so that the tab is positioned as shown in
Tab the illustration.
Tab
AK703292AC
>>D<< ENGINE COOLANT TEMPERATURE

SENSOR INSTALLATION
CAUTION
Be careful not to give a shock, twist and the like to the
resin mold with a tool during installation.
1. Apply an appropriate and minimum amount of sealant
(Three bond 1324N, LOCTITE 262 or equivalent) to the
engine coolant temperature sensor, taking care not to allow
sealant to squeeze out.
2. Tighten the engine coolant temperature sensor to the
cylinder block to the specified torque.
AK502544 AD
TSB Revision
ENGINE OVERHAUL
OIL PAN AND TIMING CHAIN CASE
11B-25
M1113026301218
3.0 ± 1.0 N·m 5.5 ± 0.5 N·m

6
27 ± 8 in-lb 49 ± 4 in-lb
1
11
10
4
2.5 ± 0.4 N·m
3 22 ± 3 in-lb
16
10 ± 2 N·m 2
89 ± 17 in-lb
13 ± 1 N·m
115 ± 8 in-lb
10 ± 2 N·m
48 ± 6 N·m 89 ± 17 in-lb 14 ± 2 N·m
35 ± 4 ft-lb 124 ± 17 in-lb
9
8
14
15 13
24 ± 4 N·m
18 ± 2 ft-lb 10 ± 2 N·m
7 89 ± 17 in-lb
39 ± 5 N·m 29 ± 2 N·m
29 ± 3 ft-lb 21 ± 1 ft-lb
23 ± 6 N·m 12
17 ± 4 ft-lb
AKA00465 AB

1. Breather hose <<A>> >>E<< 9. Oil filter
2. PCV hose >>D<< 10. Cylinder head cover
3. PCV valve 11. Cylinder head cover gasket
4. O-ring 12. Air compressor bracket
5. Oil filler cap <> >>C<< 13. Oil pan
6. O-ring 14. Engine support bracket
7. Oil drain plug >>B<< 15. Front oil seal
8. Oil drain plug gasket <<C>> >>A<< 16. Timing chain case

• MB991396: Oil Filter Wrench • MB991448: Bushing remover and installer base
• MD998727: Oil Pan FIPG Cutter
TSB Revision
REMOVAL SERVICE POINTS

.
<<A>> OIL FILTER REMOVAL

Use special tool MB991396 to remove the oil filter.
MB991396
AK502733AD
<> OIL PAN REMOVAL

1. Remove oil pan tightening bolts.
CAUTION
Lightly tap the oil pan FIPG cutter to drive in, taking care
not to damage the ladder frame and oil pan sealed area.
2. Lightly tap special tool MD998727 to drive in the illustrated
Groove groove of the oil pan and ladder frame.
Groove AK502874AD
3. Lightly tap and slide special tool MD998727 to remove the

oil pan.
MD998727
AK502732AD
TSB Revision
ENGINE OVERHAUL
11B-27
<<C>> TIMING CHAIN CASE REMOVAL
If the timing chain case is difficult to remove, insert a hammer
handle as shown in the illustration and lightly pry it.
Hammer
AK901126 AE

.
>>A<< TIMING CHAIN CASE INSTALLATION

CAUTION
• Completely remove all the old liquid gasket, which
might be remaining in the installation hole, the O-ring
groove or among the components such as the cylinder
head gasket.
• Sufficiently check that there is no residual oil on the
place where degreasing is performed. If fingerprints are
left, do not touch it with bare hands after the degreas-
ing, since the oils from your fingers will harm the seal
ability.
1. Completely remove the liquid gasket adhering to the timing
chain case, the cylinder block and the cylinder head.
2. Completely remove the sealant remaining on the 3-plane
contact surface among the cylinder head, the cylinder block
and the gasket.Carry out the degresing
7.5 ± 0.5 mm Ø2.5 ± 0.5 mm

(0.30 ± 0.02 in) (0.10 ± 0.02 in)
1.0 ± 0.5 mm
Ø2.5 ± 0.5 mm (0.04 ± 0.02 in)
(0.10 ± 0.02 in)
A A C-C view
C
G C
A-A view D
B B A A
3.0 ± 0.5 mm
(0.12 ± 0.02 in) 3.0 ± 0.5 mm
4.5 ± 0.5 mm (0.12 ± 0.02 in)
Ø2.5 ± 0.5 mm (0.18 ± 0.02 in)
(0.10 ± 0.02 in)
2.5 mm
(0.10 in)
B-B view
Ø4.5 ± 0.5 mm Ø2.5 ± 0.5 mm
(0.18 ± 0.02 in) (0.10 ± 0.02 in)
AK703733 AH
TSB Revision
CAUTION
Install the timing chain case within three minutes after
applying the liquid gasket.
3. Apply liquid gasket (Three bond 1217G or exact equivalent)
of 2.5 ± 0.5 mm (0.10 ± 0.02 inch) in thickness to the timing
chain case. For illustrated A locations, however, apply liquid
gasket of 4.5 ± 0.5 mm (0.18 ± 0.02 inch) in diameter or
liquid gasket of 2.5 ± 0.5 mm (0.10 ± 0.02 inch) by putting
one on top of another as shown in the illustration.
4. The engine oil staying at the cylinder gasket oozes to the
3-plane contact surface described in Step 2 and 3. Swiftly
apply the liquid gasket to this area after degreasing.
Specified sealant:
Three bond 1217G or exact equivalent
AK703734AD
5. Tighten timing chain case mounting bolts to the specified

A A tightening torque.
Tightening torque
A: 24 ± 4 N⋅m (18 ± 2 ft-lb)
A B: 10 ± 2 N⋅m (89 ± 17 in-lb)
A
C: 10 ± 2 N⋅m (89 ± 17 in-lb)
D: 13 ± 1 N⋅m (115 ± 8 in-lb)
B
B
B
C B
D
B B
A
A
A: M8 × 30 mm (1.2 in)
B: M6 × 25 mm (1.0 in)
C: M6 × 25 mm (1.0 in)
D: M8 × 10 mm (0.4 in) AK502378 AH
TSB Revision
ENGINE OVERHAUL
11B-29
>>B<< FRONT OIL SEAL INSTALLATION
1. Apply engine oil to the internal circumference of the oil seal.
2. Use special tool MB991448 to install the front oil seal on the
MB991448 Chain case
timing chain case.
Oil seal
1.5 – 2.5 mm
(0.06 – 0.09 in)
MB991448
AK800005 AC
>>C<< OIL PAN INSTALLATION

1. Completely remove liquid gasket adhering to the cylinder
block and oil pan.
2. Degrease the cylinder block and oil pan.
CAUTION
Install the oil pan within three minutes after liquid gasket is
applied.
1 mm
3. Apply liquid gasket of φ2.5 ± 0.5 mm (0.10 ± 0.02 inch) of
(0.04 in) thickness in diameter to the illustrated area of the oil pan.
Specified sealant:
4. Tighten the oil pan to the specified tightening torque.
Tightening torque:
M6:10 ± 2 N⋅m (89 ± 17 in-lb)
Ø2.5 ± 0.5 mm
(0.10 ± 0.02 in)
M8: 29 ± 2 N⋅m (21 ± 1 ft-lb)
AK502377AD
>>D<< CYLINDER HEAD COVER INSTALLATION

head cover, timing chain case and cylinder head.
2. Degrease the cylinder head cover, timing chain case and
cylinder head.
TSB Revision
CAUTION
Install the cylinder head cover immediately after liquid gas-
ket is applied.
3. Appropriately use a minimum amount of sealant. Be careful
4.0 mm (0.16 in) not to allow sealant to squeeze out from the application
area.
2.0 mm 2.0 mm Apply liquid gasket of 4 mm (0.15 inch) of thickness in
Cylinder head (0.08 in) (0.08 in) diameter.
Specified sealant:
4.0 mm
(0.16 in)
Timing chain case assembly AK901127 AD
13
4. Tighten the cylinder head cover to the tightening torque in
1 6 7 8 14 the order shown in the illustration.
Tightening torque: 3.0 ± 1.0 N⋅m (27 ± 8 in-lb)
5. Then, tighten it to the specified tightening torque in the same
18 5 2 9 order.
12 15
Tightening torque: 5.5 ± 0.5 N⋅m (49 ± 4 in-lb)
4 3 10 16
17 11
AK502760AF
>>E<< OIL FILTER INSTALLATION

1. Clean the oil filter mounting surface of the ladder frame.
2. Apply engine oil to the O-ring of the oil filter.
AK305422 AD
TSB Revision
ENGINE OVERHAUL
TIMING CHAIN
11B-31
CAUTION
Use special tool MB991396 to install the oil filter. Tighten-
ing it by hand causes oil leakage due to lack of torque.
3. Screw in the oil filter. When the O-ring contacts the mounting
surface, use a filter wrench to tighten it
Specified torque: 3/4 turn (14 ± 2 N⋅m [124 ± 17 in-lb]).
MB991396
AK502733AD
TIMING CHAIN
M1113026600636
Apply engine oil to

all moving parts
before installation.
59 ± 5 N·m 6
44 ± 3 ft-lb
8
5
2
7
10 ± 2 N·m
89 ± 17 in-lb
59 ± 5 N·m
44 ± 3 ft-lb
1
10 ± 2 N·m 4
89 ± 17 in-lb
3
10 ± 2 N·m
89 ± 17 in-lb
AKA00439 AB
TSB Revision
TIMING CHAIN

<<A>> >>D<< 1. Timing chain tensioner <> >>B<< 5. Exhaust V.V.T. sprocket bolt
2. Tensioner lever 6. Exhaust V.V.T. sprocket assembly
3. Timing chain guide <<C>> >>A<< 7. Intake V.V.T. sprocket bolt
>>C<< 4. Timing chain 8. Intake V.V.T. sprocket assembly

.
<<A>> TIMING CHAIN TENSIONER REMOVAL

1. Insert a flatblade screwdriver into the release hole of the
Ratchet release hole
timing chain tensioner to release the latch.
Wire 2. Push the tensioner lever by hand and push in the plunger of
the timing chain tensioner until it hits the bottom. Then,
insert a hard wire (piano wire or the like) of φ1.5 or
hexagonal bar wrench (1.5 mm [0.05 inch]) into the fixing
hole of the plunger.
3. Remove the timing chain tensioner.
Plunger fixed
hole
AK502854 AG
<> EXHAUST V.V.T. SPROCKET BOLT

REMOVAL
Hold the hexagonal portion of the exhaust camshaft with a
wrench and loosen the exhaust V.V.T. sprocket bolt.
AK502737
<<C>> INTAKE V.V.T. SPROCKET BOLT REMOVAL

Hold the hexagonal portion of the intake camshaft with a
wrench and loosen the intake V.V.T. sprocket bolt.
AK502736
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ENGINE OVERHAUL
TIMING CHAIN
11B-33
.
>>A<< INTAKE V.V.T. SPROCKET BOLT INSTAL-

LATION
1. Assemble the intake V.V.T. sprocket assembly in the
V.V.T. sprocket
following procedure.
• Make sure that the knock pin of the inlet camshaft assembly
is positioned facing straight upward.
• Apply an appropriate and minimum amount of engine oil to
the circumference of the tip of the intake V.V.T. sprocket
assembly and the entire circumference of the area into
which the intake V.V.T. sprocket assembly is inserted.
Camshaft • Slowly insert the intake V.V.T. sprocket assembly into the
V.V.T. sprocket bolt
normal position of the inlet camshaft assembly with its
AK503070AD
knock pin hole facing straight upward.
2. Install the V.V.T. sprocket.
3. Make sure that the V.V.T. sprocket is securely inserted into
the bottom and that the V.V.T. sprocket does not rotate with
the hexagonal portion of the camshaft secured with a
wrench.
4. Hold the hexagonal portion of the camshaft with a wrench
and tighten the intake V.V.T. sprocket bolt to the specified
torque.
AK502739
>>B<< EXHAUST V.V.T. SPROCKET BOLT

INSTALLATION
1. Assemble the exhaust V.V.T. sprocket assembly in the
following procedure.
• Make sure that the knock pin of the exhaust camshaft
assembly is positioned facing straight upward.
• Apply an appropriate and minimum amount of engine oil to
the circumference of the tip of the exhaust V.V.T. sprocket
assembly and the entire circumference of the area into
which the exhaust V.V.T. sprocket assembly is inserted.
• Slowly insert the exhaust V.V.T. sprocket assembly into the
normal position of the exhaust camshaft assembly with its
knock pin hole facing straight upward.
2. Install the V.V.T. sprocket.
3. Make sure that the V.V.T. sprocket is securely inserted into
the bottom and that the V.V.T. sprocket does not rotate with
the hexagonal portion of the camshaft secured with a
wrench.
TSB Revision
TIMING CHAIN
4. Hold the hexagonal portion of the camshaft with a wrench

and tighten the camshaft sprocket bolt to the specified
torque.
AK502738
>>C<< TIMING CHAIN INSTALLATION

1. Align the timing mark of the V.V.T. sprocket.
Timing mark 2. Align the crankshaft sprocket keys with illustrated positions.
Crankshaft key
AK502924 AD
Link plate (Orange)

3. Align the link plate (Orange) with the timing mark of the
Timing mark exhaust V.V.T. sprocket and loop the timing chain.
AK502910AI
TSB Revision
ENGINE OVERHAUL
TIMING CHAIN
11B-35
4. Align the link plate (Blue) with the timing mark of the intake
Timing mark Link plate
(Blue)
V.V.T. sprocket to loop the timing chain.
Rotate the intake V.V.T. sprocket by one or two teeth to
align with the timing mark.
AK502757AJ
5. Align the timing mark of the crankshaft sprocket with the link
plate (Blue) to loop the timing chain. Because of timing chain
slacks, hold it to prevent the timing mark from coming off the
link plate (Blue).
Link plate
(Blue)
Timing mark
AK603512AD
Timing mark Timing mark 6. Make sure that the timing mark of each sprocket is aligned
link plate (orange) link plate (blue) with the link plate of the timing chain at all of three locations.
7. Install the timing chain guide and tensioner lever.
V.V.T. exhaust V.V.T. intake

sprocket sprocket
timing mark timing mark
Crankshaft Timing mark

sprocket link plate (blue)
timing mark
AK901201AC
TSB Revision
TIMING CHAIN
>>D<< TIMING CHAIN TENSIONER

INSTALLATION
1. Install the timing chain tensioner on the cylinder block and
Ratchet release hole
tighten it to the specified torque.
Wire Specified torque: 10 ± 2 N⋅m (89 ± 17 in-lb)
2. Remove the hard wire (piano wire or the like) of φ1.5 or
hexagonal bar wrench (1.5 mm [0.05 inch]) from the timing
chain tensioner. This enables the plunger of the timing chain
tensioner to push the tensioner lever to keep the timing
Plunger fixed
chain tight.
hole
AK502854 AG
INSPECTION
M1113026700796
INTAKE V.V.T. SPROCKET

CAUTION
Never overhaul the V.V.T. sprocket.
1. Seal with a tape all the intake camshaft ports for the
Retard
port Tape advanced angle and the retarded angle.
Advance
port 2. Make a hole on the port for the advanced angle.
Advance Retard Make a hole

port port
AK800281AD
CAUTION
Fix the camshaft on a vise not to damage it.
3. Fixing the hexagonal area of the intake camshaft on a vise,
install the intake V.V.T. sprocket.
The hexagonal
part
AK800282AD
CAUTION
Stopper pin
When applying air pressure, keep in mind that oil could
x
splash.
A
4. By applying air pressure slowly to the holed port for the
advanced angle, remove the stopper pin.
5. Turn the intake V.V.T. sprocket housing in the right and left
directions. Check it smoothly moves in the range of A
(approximately 12.5°)
NOTE: The stopper pin is locked in the most retarded angle
x position.
x-x
Housing AK800283 AD
6. .After the check, remove the intake V.V.T. sprocket from the
intake camshaft
TSB Revision
ENGINE OVERHAUL
TIMING CHAIN
11B-37
7. Completely remove the tape sealing the intake camshaft
ports for the advanced angle and for the retarded angle.
EXHAUST V.V.T. SPROCKET

CAUTION
Never overhaul the V.V.T. sprocket.
1. Seal with a tape all the exhaust camshaft ports for the
Advance
port Tape advanced angle and the retarded angle.
Retard
port 2. Make a hole on the port for the retarded angle.
Retard Advance Make a hole

port port
AK800284AD
CAUTION
Fix the camshaft on a vise not to damage it.
3. Fixing the hexagonal area of the exhaust camshaft on a
vise, install the exhaust V.V.T. sprocket.
The hexagonal
part
AK800285AD
CAUTION
Stopper pin
When applying air pressure, keep in mind that oil could
x
A splash.
4. By applying air pressure slowly to the holed port for the
retarded angle, remove the stopper pin.
5. Turn the exhaust V.V.T. sprocket housing in the right and left
directions. Check it smoothly moves in the range of A
(approximately 10°)
NOTE: The stopper pin is locked in the most advanced
x x-x angle position.
Housing
AK800286 AD
6. .After the check, remove the exhaust V.V.T. sprocket from
the exhaust camshaft
7. Completely remove the tape sealing the exhaust camshaft
ports for the advanced angle and for the retarded angle.
.
VALVE CLEARANCE ADJUSTMENT

Measure valve clearance as described in the following proce-
dure.
Check and adjust the valve clearance with the timing chain
installed.
TSB Revision
TIMING CHAIN
CAUTION
Always rotate the crankshaft clockwise.
1. Rotate the crankshaft clockwise to align the timing mark of
Timing mark
the V.V.T. sprocket with the top surface of the cylinder head
as illustrated. (Set the Number 1 piston at top dead center
on the compression stroke.)
AK502968AE
Exhaust valve side

2. Valve clearance can be measured at the illustrated location
No.1 No.3 in this condition.
7
5
1
3
9
1 1
6
4
8
8
6
2
4
1 2
1 0
5
1
No.1 No.2
Intake valve side AK502387AG
3. Use a thickness gauge to measure clearance between the

camshaft and valve tappet.
Standard value (when engine is cold):
Intake side: 0.20 ± 0.03 mm (0.008 ± 0.001 inch)
Exhaust side: 0.30 ± 0.03 mm (0.012 ± 0.001 inch)
4. If measured values are out of the standard value, record
measured values.
AK502758
5. Rotate the crankshaft by one turn clockwise to set the

Timing mark Number 4 piston at top dead center on the compression
stroke.
NOTE: The timing mark of the V.V.T. exhaust sprocket must
be at the illustrated position.
AK502545AG
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ENGINE OVERHAUL
TIMING CHAIN
11B-39
Exhaust valve side 6. Valve clearance can be measured at the illustrated location
No.2 No.4 in this condition.
7
7. If measured values are out of the standard value, record
5
1
3
measured values.
9
1 1
8. If the measured value is out of the standard value, replace
6
4
8
the valve tappet.

8
6
2
4
NOTE: There are 47 kinds of valve tappets at intervals of

1 2
0.015 mm (0.0006 inch) in the range between 3.000 (0.1181

1 0
5
1
No.3 No.4 inch) and 3.690 mm (0.1453 inch).

Intake valve side AK502388AF
Wall thickness 9. Use the following procedure select a valve tappet.

(1) Measure thickness of a removed valve tappet.
(2) Calculate thickness of a valve tappet so that valve
clearance meets the standard value.
A: Thickness of valve tappet to be selected
B: Thickness of removed valve tappet
C: Measured valve clearance
Formula
Intake side: A = B + (C − 0.20 mm [0.008 inch])
Exhaust side: A = B + (C − 0.30 mm [0.012 inch])
AK304938 AE
Refer to "Removal and installation of camshaft" for removal,

installation and inspection procedure of valve tappets.
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CAMSHAFT
CAMSHAFT
M1113026900778
7
17 ± 3 N·m 30 ± 2 N·m 8
14 ± 2 ft-lb 22 ± 1 ft-lb 7 12 ± 1 N·m
107 ± 8 in-lb
7
8
6
7
5 6 11
9 10
Apply engine oil to

all moving parts 13
12
10 ± 2 N·m
89 ± 17 in-lb
1
2
4
3
10 ± 2 N·m
89 ± 17 in-lb
AK502934 AD

>>C<< 1. Engine oil control valve (OCV) <<A>> >>B<< 7. Camshaft bearing cap
exhaust <<A>> >>B<< 8. Thrust camshaft bearing cap
>>C<< 2. O-ring >>B<< 9. Bearing
>>C<< 3. Engine oil control valve (OCV) >>B<< 10. Camshaft intake
intake >>B<< 11. Camshaft exhaust
>>C<< 4. O-ring 12. Bearing
<<A>> >>B<< 5. Front camshaft bearing cap <> >>A<< 13. Valve tappet
<<A>> >>B<< 6. Oil feeding camshaft bearing cap
TSB Revision
ENGINE OVERHAUL
CAMSHAFT
11B-41
.
<<A>> FRONT CAMSHAFT BEARING CAP / OIL

FEEDING CAMSHAFT BEARING CAP / CAM-
SHAFT BEARING CAP / THRUST CAMSHAFT
BEARING CAP REMOVAL
CAUTION
Loosing the camshaft bearing cap installation bolts in four
2 to five steps. Do not loosen bolts in one step as this
6 10 12 8 causes the valve spring force to push on the bolts and
4 make them jump out causing damage to the threads.
5 9 11 7 First remove a mounting bolt of the front camshaft bearing cap
and then a mounting bolt of each camshaft bearing cap in the
3 order shown in the illustration.
5 9 11 7
1 12 8
6 10
AK502389AD
<> VALVE TAPPET REMOVAL

Pick out valve tappets with fingers and store removed valve
tappets with tags describing the installed position attached for
reassembly.

.
>>A<< VALVE TAPPET INSTALLATION

Install valve tappets at the same position based on tags
describing the installed position for reassembly.
.
>>B<< CAMSHAFT / BEARING / THRUST

CAMSHAFT BEARING CAP / CAMSHAFT
BEARING CAP / OIL FEEDING CAMSHAFT
BEARING CAP / FRONT CAMSHAFT BEARING
CAP INSTALLATION
1. When replacing a camshaft bearing, select a bearing with
the size corresponding to the identification mark in the table
below.
2. Install camshaft bearings on the cylinder head.
Camshaft Camshaft bearing
Identification
mark Identificati Journal diameter Identification
on mark mm (in) mark
1 40.000 − 40.008 1
AK502969AC (1.5748 − 1.5751)
2 40.008 − 40.016 2
(1.5751 − 1.5754)
3 40.016 − 40.024 3
(1.5754 − 1.5757)
TSB Revision
CAMSHAFT
3. The identification mark of the camshaft bearing is painted at

Notch
the illustrated position.
Identification mark
Oil hole AK702204 AD
4. Set the dowel pins of the camshaft at the illustrated

Dowel pin positions.
AK502390 AC
5. Camshaft bearing caps Number 1 to Number 4 are of the

same shape. Install them upon checking the identification
mark so as not to misidentify cap Number and to confuse
the intake side with the exhaust side.
Identification mark
E 2
Cap No. Identification mark (stamped on front and Number 1 to

Number 4 bearing caps)
I: Intake side
E: Exhaust side
6. Tighten each camshaft bearing cap mounting bolt to the
specified tightening torque of 12 ± 1 N⋅m (107 ± 1 in-lb) in
the order of number shown in the figure in two or three
7 3 1 5 steps.
8 4 2 6
8 4 2 6
7 3 1 5
AK503813 AC
TSB Revision
ENGINE OVERHAUL
CAMSHAFT
11B-43
Timing chain side 7. Tighten each front camshaft bearing cap mounting bolt to
(1) (2) the temporarily torque of 17 ± 3 N⋅m (14 ± 2 ft-lb) in the order
of number shown (1).
4 1
8. Tighten each front camshaft bearing cap mounting bolt to
3 3 the specified tightening torque of 30 ± 2 N⋅m (22 ± 1 ft-lb) in
the order of number shown (2).
2 4
1 2
AK503814AC
>>C<< O-RING / ENGINE OIL CONTROL VALVE

INSTALLATION
CAUTION
• The O-ring must not be reused.
• Wind non-adhesive tape (seal tape, etc.) around the
notch of the oil passage of the engine oil control valve
before installing the O-ring to prevent damage. Damage
to the O-ring causes oil leakage.
1. Apply a small amount of engine oil to the O-ring of the
engine oil control valve.
2. Install the engine oil control valve on the cylinder head.
Tape
3. Tighten the engine oil control valve to the specified torque.
AK303651AF
INSPECTION
M1113027000541
.
CAMSHAFT
Measure camshaft height (camshaft major axis). If the height is
less than the limit, replace the camshaft.
Standard value:
Intake: 43.25 mm (1.703 inches)
Exhaust: 45.00 mm (1.772 inches)
Limit:
Intake: 42.75 mm (1.683 inches)
Exhaust: 44.50 mm (1.752 inches)
AK503020AD
CAMSHAFT OIL CLEARANCE (PLASTIGAGE

METHOD)
1. Thoroughly wipe oil on the outside diameter of the camshaft
and the inside diameter of the bearing.
2. Install the bearing to the camshaft.
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CAMSHAFT
3. Put straightly the plastigage having the length of the bearing

width on the journal axis, centering the axis.
Plastigage 4. Carefully install the bearing cap. Tighten the bolt as
instructed in >>B<< Bolt Installation Point.
5. Remove the bolt and the bearing cap carefully.
AK503390 AD
6. Measure the plastigage whose width is most compressed

using the scale printed on the plastigage bag. When the
Plastigage measured value deviates from the standard one, replace the
bearing.
Standard value: 0 − 0.032 mm (0 − 0.0013 inch)
CAUTION
When the bearing is used again, be careful not to reverse
the cylinder head side and the camshaft side during instal-
lation.
AK503391AD
VALVE TAPPET
1. Check the thickness stamp.
Under view
Thickness stamp
0 0 0
3.
AK703500AF
2. If the measured value in the table value is not in agreement

Wall
thickness with the value in the table to the thickness stamp, replace
the valve tappet.
There are 47 kinds of valve tappets at intervals of 0.015 mm
(0.0006 inch) in the range between 3.000 (0.1181 inch) and
3.690 mm (0.1453 inch).
AK304938 AB
Thickness mm Thickness Thickness mm Thickness Thickness mm Thickness

(in) stamp (in) stamp (in) stamp
3.000 (0.1181) 3.000 3.240 (0.1276) 3.240 3.480 (0.1370) 3.480
3.015 (0.1187) 3.015 3.255 (0.1281) 3.255 3.495 (0.1376) 3.495
3.030 (0.1193) 3.030 3.270 (0.1287) 3.270 3.510 (0.1382) 3.510
3.045 (0.1199) 3.045 3.285 (0.1293) 3.285 3.525 (0.1388) 3.525
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ENGINE OVERHAUL
CAMSHAFT
11B-45
Thickness mm Thickness Thickness mm Thickness Thickness mm Thickness
(in) stamp (in) stamp (in) stamp
3.060 (0.1205) 3.060 3.300 (0.1299) 3.300 3.540 (0.1394) 3.540
3.075 (0.1211) 3.075 3.315 (0.1305) 3.315 3.555 (0.1400) 3.555
3.090 (0.1217) 3.090 3.330 (0.1311) 3.330 3.570 (0.1406) 3.570
3.105 (0.1222) 3.105 3.345 (0.1317) 3.345 3.585 (0.1411) 3.585
3.120 (0.1228) 3.120 3.360 (0.1323) 3.360 3.600 (0.1417) 3.600
3.135 (0.1234) 3.135 3.375 (0.1329) 3.375 3.615 (0.1423) 3.615
3.150 (0.1240) 3.150 3.390 (0.1335) 3.390 3.630 (0.1429) 3.630
3.165 (0.1246) 3.165 3.405 (0.1341) 3.405 3.645 (0.1435) 3.645
3.180 (0.1252) 3.180 3.420 (0.1346) 3.420 3.660 (0.1441) 3.660
3.195 (0.1258) 3.195 3.435 (0.1352) 3.435 3.675 (0.1447) 3.675
3.210 (0.1264) 3.210 3.450 (0.1358) 3.450 3.690 (0.1453) 3.690
3.225 (0.1270) 3.225 3.465 (0.1364) 3.465
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CYLINDER HEAD AND VALVES

M1113006903032
35 ± 2 N·m 35 ± 2 N·m
26 ± 1 ft-lb +90˚ +90˚ +90˚ +90˚
26 ± 1 ft-lb
3
1
2 4
8 7
15 9
11 12
17
13 16
18
21
19
20
10
14
5
Apply engine oil to
all moving parts
6
AK703803AC

>>D<< 1. Cylinder head bolt <<A>> >>B<< 11. Retainer lock
>>D<< 2. Cylinder head bolt washer 12. Valve spring retainer
>>D<< 3. Cylinder head bolt & washer 13. Valve spring
assembly 14. Exhaust valve
>>C<< 4. Cylinder head assembly <> >>A<< 15. Valve stem seal
>>C<< 5. Cylinder head gasket <> >>A<< 16. Valve stem seal
6. Engine oil control valve (OCV) filter 17. Intake valve guide
<<A>> >>B<< 7. Retainer lock 18. Exhaust valve guide
8. Valve spring retainer 19. Intake valve seat
9. Valve spring 20. Exhaust valve seat
10. Intake valve 21. Cylinder head
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ENGINE OVERHAUL
11B-47
• MD998735: Valve Spring Compressor • MB992085: Valve Stem Seal Pliers
• MB992089: Retainer Holder C • MD998737: Valve Stem Seal Installer

.
<<A>> RETAINER LOCK REMOVAL

CAUTION
Be careful not to allow retainer holder C to interfere with
MB992089 the wall of the tappet hole and to damage it.
Use a special tool MD998735 and MB992089 to compress the
valve spring and to remove the retainer lock.
NOTE: Store removed parts such as valves and springs with
tags describing cylinder Number and installed position attached
for reassembly.
MD998735
AK502741AD
<> VALVE STEM SEAL REMOVAL

Use special tool MB992085 to firmly pinch the base (larger
external shape) of the stem seal and twist it right and left for
MB992085
pulling out.
Valve stem seal AK502782AD
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.
>>A<< VALVE STEM SEAL INSTALLATION

CAUTION
• The valve stem seal must not be reused.
• Do not damage the tappet wall during assembly.
• Be sure to use a special tool to install the valve stem
seal. Poor installation causes oil loss via valve guides.
• If oil is not applied, the valve stem seal may rise to the
surface after it is press fitted.
1. Apply a thin coat of engine oil to a new valve stem seal.
AK503378AE
2. Use special tool MD998737 to press fit the valve stem seal
into the valve guide with the valve stem used as a guide.
MD998737
AK502742AD
>>B<< RETAINER LOCK INSTALLATION

Use a special tool MD998735 and MB992089 to compress the
MB992089 valve spring and to install the retainer lock.
MD998735
AK502741AD
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ENGINE OVERHAUL
11B-49
>>C<< CYLINDER HEAD GASKET / CYLINDER
HEAD ASSEMBLY INSTALLATION
1. Completely remove the liquid gasket on the upper plane of
Degreasing the cylinder block and the lower plane of the cylinder head.
CAUTION
Sufficiently check that there is no residual oil on the place
where degreasing is performed. If fingerprints are left, do
not touch it with bare hands after the degreasing, since the
oils from your fingers will harm the seal ability.
2. Degrease the place specified in the illustration.
Bottom face of cylinder head
Degreasing
Top face of cylinder block

AK602902AD
3. As shown in the illustration, apply a φ2 to 3 mm (0.079 to

0.118 inch) of sealant (Three bond 1217G or exact
equivalent) to the top face of cylinder block.
4. Install the cylinder head gasket.
NOTE: Check that the center of the liquid gasket is located
toward the cylinder gasket in the position specified in the
illustration.
5. As shown in the illustration, apply a φ2 to 3 mm (0.079 to
0.118 inch) of sealant (Three bond 1217G or exact
equivalent) to the top face of cylinder head gasket.
Ø2 to Ø3 mm 6. Install the cylinder head assembly.
(0.079 to 0.118 in)
Timing chain side
AK602942AD
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>>D<< CYLINDER HEAD BOLT INSTALLATION

1. Install new cylinder head bolts and washers in the following
procedure.
NOTE: Cylinder head bolts and washers must not be
reused.
2. Apply an appropriate amount of engine oil to top and bottom
surfaces of washers and threaded portion of bolts.
3. Install cylinder head bolts to the cylinder head.
NOTE: Bolts and washers are different parts for bolts on the
timing chain side.
4. Tighten cylinder head bolts in several steps to the specified
Timing chain side
torque according to the assembly order shown.
8 6 1 3 9
10 4 2 5 7
AK502392 AD
5. Put a paint mark on all of cylinder head bolt heads and

Paint mark Paint mark cylinder head.
90˚ 90˚ CAUTION
• When the tightening angle is smaller than the specified
tightening angle, the appropriate tightening capacity
cannot be secured.
• When the tightening angle is larger than the specified
Paint mark Paint mark tightening angle, remove the bolt to start from the
beginning again according to the procedure.
AK502523AD 6. Tighten the cylinder head 90° according to the tightening
order.
Tighten it further 90° and make sure that the paint mark on
the cylinder head bolt is in a straight line with that on the
cylinder head.
INSPECTION
M1113007002590
.
CYLINDER HEAD
1. Check the cylinder head for water leakage, gas leakage,
damage or cracks before cleaning.
2. Completely remove oil, scale, sealant, carbon, etc. After
cleaning oil passages, blow air to make sure that they are
not clogged.
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ENGINE OVERHAUL
11B-51
CAUTION
The grinding limit shall be within 0.2 mm (0.008 inch) in
combination with the cylinder block to be assembled.
3. For the flatness on the cylinder head bottom, measure
distortion using a straight edge and thickness gauge. If the
distortion exceeds the limit, grind and repair it.
Distortion on bottom
Limit: Within 0.05 mm (0.002 inch)
Grinding limit: 0.2 mm (0.008 inch)
Cylinder head height: 128.5 mm (5.06 inches)
.
VALVE
AK502740
1. Repair the valve seat if contact with the valve seat is poor,
uneven or broken.
2. Measure the margin.
If the limit is exceeded, replace the valve.
The bottom of valve
seat contact facet Standard value:
Intake 1.022 mm (0.0402 inch)
Exhaust 1.094 mm (0.0431 inch)
Margin
Limit:
AK305408AD
Exhaust 0.594 mm (0.0234 inch)
3. Measure overall length of the valve.
If the limit is exceeded, replace the valve.
Standard value:
Intake 113.18 mm (4.456 inches)
Exhaust 105.89 mm (4.169 inches)
Limit:
Length Intake 112.68 mm (4.436 inches)
Exhaust 105.39 mm (4.149 inches)
AK305409AD
VALVE SPRING
1. Measure free height of the spring.
Squareness If the limit is exceeded, replace the spring.
Standard value: 47.2 mm (1.858 inch)
Limit: 46.2 mm (1.819 inch)
2. Measure squareness of the spring.
Free height If the inclination exceeds the limit, replace the spring.
Standard value: 2° or less
Limit: 4°
AK305410AD
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VALVE GUIDE
Measure clearance between the valve guide and valve stem. If
the clearance exceeds the limit, replace the valve guide or
valve, or both.
Standard value:
Intake 0.020 − 0.047 mm (0.0008 − 0.0019 inch)
Valve
guide Exhaust 0.030 − 0.054 mm (0.0012 − 0.0021 inch)
Limit:
Stem diameter Exhaust 0.15 mm (0.006 inch)
Guide inside diameter AK300168 AF
VALVE SEAT
Assemble the valve, then measure the contact width. If the
measurement exceeds the specified limit, replace the valve
seat.
Valve seat
Standard value
Contact width Intake: 1.16 − 1.46 mm (0.046 − 0.058 inch)
Exhaust: 1.35 − 1.65 mm (0.053 − 0.065 inch)
CAUTION
If the variation in the width exceeds 0.2 mm (0.008 inch)
even if the contact width is within the standard value,
AK601281AD
replace or correct the valve seat.
REPAIR PROCEDURE OF VALVE SEAT

1. Check clearance between valve guide and valve and
replace the valve guide if necessary before repairing the
valve seat.
2. Repair the valve seat so that seat width and seat angle are
1.16 – 1.46 mm
1.35 – 1.65 mm (0.046 – 0.058 in) to the specified shape.
(0.053 – 0.065 in) 3. Lap valve and valve seat with lapping compound after
30˚ repairing valve seat.
30˚
45˚ 45˚
60˚
AK503333AE
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ENGINE OVERHAUL
11B-53
REPLACEMENT PROCEDURE OF VALVE SEAT
0.5 – 1 mm
1. Scrape the valve seat to be replaced from inside to make its
(0.02 – 0.04 in) wall thickness thin before pulling out.
Cut
0.5 – 1 mm
(0.02 – 0.04 in)
AK300719AE
2. Repair the valve seat hole of the cylinder head to match it

with the diameter of the oversize valve seat to be press
fitted.
Intake valve seat bore diameter:
Valve seat 0.3 Over size: 36.22 − 36.24 mm (1.426 − 1.427
height inches)
Exhaust valve seat bore diameter:
Oversize hole 0.3 Over size: 30.22 − 30.24 mm (1.190 − 1.191
diameter inches)
AK300720AE
3. Press fit the valve seat, taking care not to score the cylinder
head bore at room temperature.
4. Ream the valve seat.
Refer to "Repair procedure of valve seat."
REPLACEMENT PROCEDURE OF VALVE GUIDE

1. Pull out the valve guide with a press toward the cylinder
block side.
2. Ream the valve guide hole of the cylinder head to match it
with the diameter of the oversize valve guide to be press
fitted.
CAUTION
Do not use a valve guide with the same size as that of the
pulled out valve guide because it cannot be press fitted.
Valve guide bore diameter
0.25 Over size: 11.23 − 11.25 mm (0.442 − 0.443 inch)
3. Press fit the valve guide to the illustrated dimension.
Standard value: 14.6 − 15.2 mm (0.57 − 0.60 inch)
NOTE: Press fit the valve guide from the cylinder head top
surface.
4. After pressing fit the valve guide, insert a new valve to check
for sliding.
14.6 – 15.2 mm
(0.57 – 0.60 in)
AK603511AB
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OIL PUMP CHAIN
OIL PUMP CHAIN

M1113033700538
3 2
40 N·m 130 N·m

30 ft-lb 96 ft-lb
40 N·m 130 N·m

6 30 ft-lb 96 ft-lb
12
13
7
10 ± 2 N·m 28 ± 2 N·m
89 ± 17 in-lb 10 ± 2 N·m
89 ± 17 in-lb 21 ± 1 ft-lb
11
Apply engine oil to
all moving parts
10 26 ± 2 N·m
23 ± 2 N·m 19 ± 1 ft-lb
17 ± 1 ft-lb
AK603506 AI

<<A>> >>E<< 1. Drive plate bolt <CVT> >>C<< 8. Oil pump tensioner lever
2. Adapter plate <CVT> >>C<< 9. Oil pump chain
3. Drive plate <CVT> <> >>C<< 10. Oil pump sprocket
<<A>> >>E<< 4. Flywheel bolt <M/T> 11. Oil pump case
5. Flywheel <M/T> >>B<< 12. Crankshaft sprocket
>>D<< 6. Rear oil seal <<C>> >>A<< 13. Ladder frame
>>C<< 7. Oil pump chain guide

• MB991346: Top cover wrench • MD998718: Rear Oil Seal Installer
• MB991883: Flywheel Stopper
TSB Revision
ENGINE OVERHAUL
OIL PUMP CHAIN
11B-55
.
<<A>> DRIVE PLATE BOLT / FLYWHEEL BOLT

REMOVAL
flywheel.
MB991883 2. Remove the drive plate bolts or flywheel bolts.
AK502869 AD
<> OIL PUMP SPROCKET REMOVAL

Fix the oil pump sprocket with a special tool MB991346, loosen
MB991346
Oil pump sprocket a center bolt, and remove the oil pump sprocket.
AK703732AC
<<C>> LADDER FRAME REMOVAL

1. Pry the illustrated position with a screwdriver or tap the boss
Boss with a hammer.
AK502755AD
2. If the ladder frame does not come off, insert a flatblade

screwdriver into the gap between the ladder frame and
bearing cap as shown in the illustration and lightly pry it to
remove the ladder frame.
AK502756
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OIL PUMP CHAIN

.
>>A<< LADDER FRAME INSTALLATION

CAUTION
Be sure to remove liquid gasket that has entered mounting
holes.
block and ladder frame.
CAUTION
Sufficiently check that there is no residual oil on the place
where degreasing is performed. If fingerprints are left, do
not touch it with bare hands after the degreasing, since the
oils from your fingers will harm the seal ability.
2. Degrease the surface where the liquid gasket is applied and
the contact surface between the cylinder block and ladder
frame.
3. Squeeze liquid gasket (Three bond 1217G or exact
8.5 mm equivalent) of φ2 to 3 mm (0.08 to 0.12 inch) in thickness
1 mm (0.04 in) (0.33 in) and apply it to the illustrated position of the ladder frame.
3 mm (0.12 in)
1.75 mm (0.069 in)
8.5 mm
3 mm (0.33 in)
(0.12 in)
AK502868AE
4. Tighten the ladder frame to the specified torque in the order

6 8 shown in the illustration.
11
2 3
1 4
12
10 9 5 7
AK603522AB
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ENGINE OVERHAUL
OIL PUMP CHAIN
11B-57
>>B<< CRANKSHAFT SPROCKET INSTALLATION
: Wipe clean with a rag. 1. Wipe off the dirt on the crankshaft sprocket and the
: Wipe clean with a rag and degrease. crankshaft using a rag, and then remove the grease from the
portion shown in the illustration.
Crankshaft
NOTE: Remove grease to prevent a drop in the coefficient
of friction of the pressing portion caused by adhesion of oil.
Engine
2. Set the Number 1 piston at top dead center on the
front compression stroke.
3. Install the crankshaft sprocket to the crankshaft.
Crankshaft sprocket AK603521AB
>>C<< OIL PUMP SPROCKET / OIL PUMP CHAIN /

OIL PUMP CHAIN GUIDE / OIL PUMP TENSIONER
LEVER INSTALLATION
1. Set the Number 1 piston at top dead center on the
compression stroke.
2. Using the special tools MB991346, install the oil pump
MB991346
Oil pump sprocket sprocket to the oil pump case.
3. Install the oil pump chain to the crankshaft sprocket.
4. Install the oil pump chain to the oil pump sprocket.
AK703732AC
>>D<< REAR OIL SEAL INSTALLATION

CAUTION
Do not apply oil to the circumference of the oil seal and oil
seal pressing hole on the cylinder block side to prevent
teeth from pulling out.
After applying a small amount of engine oil to the oil seal lip,
use special tool MD998718 to press fit the oil seal.
MD998718
AK502871AD
>>E<< FLYWHEEL BOLT / DRIVE PLATE BOLT

INSTALLATION
1. Clean off sealant and oil of thread of crankshaft and flywheel
bolt.
TSB Revision
OIL PUMP CHAIN
2. Use special tool MB991883 to secure the flywheel.
MB991883
AK603577 AB
3. Apply engine oil to thread of crankshaft and bolt seat area of

flywheel or drive plate.
4. Apply the sealant (Three bond 1324 or equivalent) to the
thread of flywheel bolt or drive plate bolt.
AK600847AC
5. Tighten flywheel bolts to temporary torque 40 N⋅m (30 ft-lb)

4 7 in the order shown to illustration.
6. Tighten flywheel bolts or drive plate bolt to specified torque
1 2 in the order shown in the illustration.
Specified torque: 130 N⋅m (96 ft-lb)
6 5
3 AK603576 AB
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ENGINE OVERHAUL
PISTON AND CONNECTING ROD
11B-59
M1113008403334
6 7
5
10
11
9
Apply engine oil to 3

all moving parts
before installation. 2
5.0 N·m 20 N·m +90˚
44 in-lb 15 ft-lb
1
AK603501 AD

>>G<< 1. Connecting rod cap bolt >>C<< 7. Piston ring Number 2
<<A>> >>F<< 2. Connecting rod cap >>B<< 8. Oil ring
>>E<< 3. Connecting rod bearing <> >>A<< 9. Piston pin
>>E<< 4. Connecting rod bearing 10. Piston
>>D<< 5. Piston connecting rod assembly <<A>> 11. Connecting rod
>>C<< 6. Piston ring Number 1

• MD998780: Piston Pin Setting Tool • MB991659: Guide D
TSB Revision

.
<<A>> CONNECTING ROD / CONNECTING ROD

CAP REMOVAL
Mark the connecting rod on the big end with the cylinder num-
ber it is being removed from.
Cylinder No.
AK502531AE
<> PISTON PIN REMOVAL

Guide A: 17.9 mm Special tool MD998780 consists of parts shown in the illustra-
(0.70 in) tion. Also use special tool MB991659 to remove the piston pin.
Push rod Guide B
Guide A: 18.9 mm
(0.74 in)
Guide C
Guide A: 20.9 mm
(0.82 in)
Guide D
Base (MB991659)
Guide A: 21.9 mm
(0.86 in)
AK305415AE
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ENGINE OVERHAUL
11B-61
1. Insert the push rod into the piston pin from the front mark
Front mark side of the piston top surface, and attach special tool
MB991659.
2. Set the piston and connecting rod assembly on the base so
A
20
that the front mark of the piston faces upward.
Push rod 3. Use a press to push the push rod and pull out the piston pin.
NOTE: After pulling out the piston pin, organize pistons, pis-
Pinston pin ton pins and connecting rods by cylinder Number
Front mark
Guide D
Base
AK603502 AB

.
>>A<< PISTON PIN INSTALLATION

1. When replacing a piston, check the cylinder bore size mark
stamped on the illustrated position of the cylinder block and
No.1 select a corresponding piston from the table below.
No.2 Cylinder bore size mark Piston size mark

A A
No.3
No.4 B B
C C
J 1
J 2
J 3
J 4
J 5
AK503237AD
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NOTE: The piston size mark is indicated on the piston top

Piston mark size face.
2. Insert the push rod into the piston pin and attach guide A.
20
A
3. Align the front mark of the piston with that of the connecting
rod to assemble.
4. Apply engine oil to the circumference of the piston pin.
5. Insert the guide A side of the piston pin assembled in
section 1 into the pin hole from the front mark side of the
piston.
AK603503 AB
6. Screw guide B into guide A and open clearance between

guide A and guide B by 3 mm (0.12 inch) (make the base in
L line with flushed surface) to assemble.
7. Set the piston on special tool piston setting base so that its
front mark faces upward.
8. Use a press to press fit the piston pin. If the press fit load is
Guide B Guide A:
20.9 mm below the standard value, replace the piston pin (piston
(0.82 in) assembly) or connecting rod, or both.
Standard value: 7,500 − 17,500 N (1,686 − 3,934 lbf)
AK502517AD
>>B<< OIL RING INSTALLATION

1. Assemble the spacer of the oil ring into the piston ring
groove. Then, assemble the upper side rail, and after this
assemble the lower side rail.
Upper Lower NOTE: Install the side rail and end gap of the spacer so that
side side
rail gap rail gap they are at the position as shown in the illustration.
Spacer gap AK400536 AC

CAUTION
The side rail may be broken if its end gap is widened by a
ring expander as in other piston rings.
2. When assembling the side rail, push it by fingers, after fitting
one end of the side rail into the piston groove, for easy
assembly.
3. After assembling the oil ring into the piston, make sure that
the side rail turns smoothly to either direction.
AK304891
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ENGINE OVERHAUL
11B-63
>>C<< PISTON RING NUMBER 2 / PISTON RING
NUMBER 1 INSTALLATION
Use a piston ring expander to assemble piston rings with their
identification marks facing upward. Piston rings can be assem-
bled by hand without using the piston ring expander.
Piston ring
expander
AK304892AD
Identification mark
Identification mark
Number 1 ring: 1T
Number 2 ring: 2T
No.1
No.2
AK502529 AE
>>D<< PISTON CONNECTING ROD ASSEMBLY

INSTALLATION
1. Apply a sufficient amount of engine oil to the circumference
of the piston, piston rings and oil ring.
2. Arrange end gap positions of piston rings and oil ring (side
Side rail No.1 rail and spacer) as shown in the illustration.
3. Insert the piston and connecting rod assembly from the top
surface of the cylinder block with the front mark of the piston
Piston pin top face facing toward the timing chain side.
No.2 Side rail

AK400403 AC
CAUTION
Driving it in hard causes breakage of piston rings and
damage to the crank pin.
4. Firmly tighten the piston ring with a ring band and insert the
piston and connecting rod assembly.
AK502730
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>>E<< CONNECTING ROD BEARING

INSTALLATION
Pin identification mark position 1. When replacing a connecting rod bearing, select the bearing
corresponding to the crankshaft pin outside diameter
according to the crankshaft pin identification in the table
below.
Crankshaft pin Connecting
rod bearing
Identificatio Journal diameter mm Identificatio
n mark (in) n mark
1 47.966 − 47.972 1
(1.8884 − 1.8887)
2 47.960 − 47.966 2
No.1 (1.8882 − 1.8884)
3 47.954 − 47.960 3
No.2 (1.8880 − 1.8882)
2. An identification mark of a crankshaft is stamped at the
illustrated position by Number
No.3
No.4
AK502527AD
3. A connecting rod bearings an iidentification mark at the

illustrated position.
Identification
mark
AK700793AD
>>F<< CONNECTING ROD CAP INSTALLATION

NOTE: The connecting rod resulting from the breaking process
has the high insertion force. The new connecting rod assembly
may possibly be difficult to remove the connecting rod.
If difficult to remove it, alternately strike the two bolt heads with
a plastic hammer while the connecting rod bolt is slightly loos-
ened, or strike the center of the cap shaft’s inside diameter
slightly and outward.
If the outside of the cap is directly struck, the lateral force is
added to the broken-out section. Thus, pay attention to the bro-
ken-out section that might be difficult to be separated or might
fall.
Clean the broken-out section before the installation to the
engine, using compression air.
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ENGINE OVERHAUL
11B-65
1. Assemble the bearing cap on the connecting rod by aligning
it with the mark put during removal. If a new connecting rod
without a mating mark is used, assemble so that the detent
notch of the bearing is on the same side as illustrated.
Cylinder No.
Notch 2
Front mark
AK503157AE
2. Make sure that clearance of the thrust of the connecting rod

big end is appropriate.
Standard value: 0.10 − 0.25 mm (0.004 − 0.010 inch)
AK502752
>>G<< CONNECTING ROD CAP BOLT

INSTALLATION
1. Check in the following procedure before reusing the
connecting rod bolt.
(1) Measure the outside diameter "A."
(2) Measure the smallest outside diameter "B" within the
20.5 mm (0.81 in) range "X" shown in the illustration.
X (3) If the difference of outside diameter of thread exceeds
the limit, replace the connecting rod bolt.
B A
Limit: 0.1 mm
35 mm (1.38 in) 2. Apply engine oil to the threaded portion and seat surface of
the bolt before installing it.
3. After installing each bolt and tightening it by fingers, tighten
AK604589AD
bolts alternately to properly assemble the cap.
4. Tighten the bolt in several steps until the torque reaches 5.0
N⋅m (44 in-lb).
5. Tighten the bolt in several steps until the torque reaches 20
N⋅m (15 ft-lb).
6. Put a paint mark on the bolt head as illustrated.
7. Put a paint mark on the connecting rod at 90° position in the
90˚ tightening direction of the bolt with reference to the paint
mark position of the bolt.
Paint mark Paint mark
AK502749AD
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CAUTION
cannot be secured.
tightening angle, remove the bolt to start from the
8. Tighten the bolt 90°, and make sure that the paint mark of
the connecting rod is aligned with that of the bolt.
INSPECTION
M1113008501896
.
PISTON RINGS
1. Check clearance between piston rings and ring grooves. If
the limit is exceeded, replace piston rings or piston, or both.
Standard value:
Number 1 ring: 0.03 − 0.07 mm (0.001 − 0.003 inch)
AK502751
2. Put piston rings into the cylinder bore, press them against
Please down ring the piston top face, and push them in. After achieving
with piston
squareness, measure the end gap with a thickness gauge. If
the end gap is excessive, replace piston rings.
Standard value:
Oil ring: 0.10 − 0.35 mm (0.004 − 0.014 inch)
Piston ring
End cap Limit:
AK603466 AB
Number 1 ring: 0.8 mm (0.03 inch)
Number 2 ring: 0.8 mm (0.03 inch)
Oil ring: 1.0 mm (0.04 inch)
.
CRANKSHAFT PIN OIL CLEARANCE

(PLASTIGAGE METHOD)
1. Wipe oil off the crankshaft pin and connecting rod bearing.
2. Place a plastigage in length equal to the bearing width on
the pin shaft straight in alignment with the shaft center.
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ENGINE OVERHAUL
11B-67
3. Carefully install the connecting rod cap and tighten bolts to
the specified torque of 5.0 N⋅m (44 in-lb) → 20 N⋅m (15 ft-lb)
→ +90°.
4. Remove bolts and gently remove the connecting rod cap.
Plastigage
AK503373 AD
5. Measure the crushed plastigage width (area most widely

crushed) using a scale printed on the plastigage bag.
Standard value: 0.018 − 0.045 mm (0.0007 − 0.0018
inch)
Plastigage
AK503374AD
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CRANKSHAFT AND CYLINDER BLOCK

M1113008703788
6 5
11 ± 1 N·m
98 ± 8 in-lb
4 3
26.5 ± 2.0 N·m

Apply engine oil to 20 ± 1 ft-lb +45˚
all moving parts
1
AK604556AB

>>E<< 1. Crankshaft bearing cap bolt >>C<< 5. Crankshaft bearing upper
>>E<< 2. Crankshaft bearing cap >>B<< 6. Thrust bearing
>>D<< 3. Crankshaft bearing lower >>A<< 7. Crankshaft sensing ring
<<A>> 4. Crankshaft 8. Cylinder block
Required Special Tool:

• MB991614: Angle Gauge
REMOVAL SERVICE POINT

.
<<A>> CRANKSHAFT REMOVAL

After removing the crankshaft with the crankshaft sensing ring
attached, temporarily place it on a V-block to prevent teeth of
the sensing ring from deforming.
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ENGINE OVERHAUL
11B-69
NOTE: If a tooth bends, be sure to replace the crankshaft sens-
ing ring with a new one.

.
>>A<< CRANKSHAFT SENSING RING INSTALLA-

TION
Tighten crankshaft sensing ring bolts to the torque of 11 ± 1
N⋅m (98 ± 8 in-lb) in the tightening order shown in the illustra-
1
tion.
4 3
2
Crankshaft sensing ring AK502865AD
>>B<< THRUST BEARING INSTALLATION

1. Install the thrust bearing on the Number 3 bearing on the
cylinder block side. Application of engine oil makes the
installation easier.
2. Install the thrust bearing so that the grooved side is on the
crankshaft weight side.
Groove
AK502394 AE
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>>C<< CRANKSHAFT BEARING UPPER

INSTALLATION
1. When replacing the crankshaft bearing upper, select a
bearing with the size corresponding to the crankshaft journal
No.1
diameter in the table below.
No.2
No.3
No.4
No.5
J 1
J 2
J 3
J 4
J 5
AK502530 AD
2. The crankshaft bearing upper has an identification mark at

Groove
Cylinder block Crankshaft
bearing
n mark (in) n mark
Identification
1 56.000 − 56.006 1
mark (2.2047 − 2.2050)
AK502396 AH 2 56.006 − 56.012 2
(2.2050 − 2.2052)
3 56.012 − 56.018 3
(2.2052 − 2.2054)
3. Install the selected crankshaft bearing upper.
.
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ENGINE OVERHAUL
11B-71
>>D<< CRANKSHAFT BEARING LOWER
INSTALLATION
1. When replacing the crankshaft bearing lower, select a
Journal identification mark position
bearing with the size corresponding to the crankshaft journal
diameter in the table below.
No.1
No.2
No.3
No.4
No.5
AK502528AD
2. The crankshaft bearing lower has an or identification mark at

Crankshaft Crankshaft
bearing
Identification n mark (in) n mark
mark
0 51.985 − 51.988 0
(2.0467 − 2.0468)
AK502418AH
1 51.982 − 51.985 1
(2.0465 − 2.0467)
2 51.979 − 51.982 2
(2.0464 − 2.0465)
3 51.976 − 51.979 3
(2.0463 − 2.0464)
4 51.973 − 51.976 4
(2.0462 − 2.0463)
3. Install the selected crankshaft bearing lower.

.
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>>E<< CRANKSHAFT BEARING CAP /

CRANKSHAFT BEARING CAP BOLT
INSTALLATION
1. Install the crankshaft bearing cap with reference to the
identification mark as illustrated.
10 6 2 3 7
9 5 1 4 8
AK502395 AD
2. Make sure that the underhead length of the bolt is at or

below the limit before installing the crankshaft bearing cap
bolt. If the length exceeds the limit, replace the bolt with a
new one.
Limit: 75.5 − 76.5 mm
(2.972 − 3.012 inch)
Shank length 3. Apply engine oil to the threaded portion and seat surface of
the bolt.
4. Tighten crankshaft bearing cap bolts to the torque of 26.5 ±
AK402401AD
2.0 N⋅m (20 ± 1 ft-lb) according to the tightening order.
CAUTION
cannot be secured.
tightening angle, remove the bolt to start from the
5. Use special tool MB991614 to tighten bolts 45° according to
MB991614 the tightening order.
45˚
AK502750AD
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ENGINE OVERHAUL
11B-73
6. Check end play of the crankshaft after installing the
crankshaft bearing cap. If the end play exceeds the limit,
replace the thrust bearing.
Standard value: 0.05 − 0.25 mm
(0.002 − 0.010 inch)
AK503375
INSPECTION
M1113008802447
.
CRANKSHAFT OIL CLEARANCE (PLASTIGAGE

METHOD)
Oil clearance can be easily measured by using a "plastigage."
When using a "plastigage," perform measurement in the follow-
ing procedure.
1. Fully wipe oil off the outside diameter of the crankshaft and
inside diameter of the bearing.
2. Assemble the crankshaft.
3. Place a plastigage in length equal to the bearing width on
the journal shaft straight in alignment with the shaft center.
4. Carefully install the bearing cap and tighten the bolt
according to the main point of installation >>B<<.
5. Remove the bolt, and then carefully remove the crankshaft
bearing cap.
AK502747
6. Measure the crushed plastigage width (area most widely

crushed) using a scale printed on the plastigage bag.
Standard value: 0.012 − 0.030 mm (0.0005 − 0.0012
inch)
AK502748
CYLINDER BLOCK
1. Visually check the cylinder block for scratch, rust and
corrosion. Use a flaw detecting agent to check for cracks. If
it is found faulty, repair or replace it.
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2. Measure distortion on the top surface of the cylinder block

using a straight edge and thickness gauge.
If distortion exceeds the limit, grind and repair it.
A gasket or the like must not be adhered to the top surface
of the cylinder block during measurement.
Distortion on bottom
Standard value: Within 0.05 mm (0.0020 inch)
Grinding limit: 0.2 mm (0.008 inch)
AK502746
3. Check the cylinder wall for scratch or seizure. If there is any
defect, replace the cylinder block.
4. Measure the bore and cylindricity of the cylinder using a
cylinder gauge.
If the cylinder is excessively worn, repair the cylinder and
replace the piston and piston rings.
12 mm (0.47 in)
Measuring points are as shown in the illustration.
Standard value
Cylinder bore: 86.0 mm (3.39 inches)
Cylindricity: 0.15 mm (0.006 inch)
AK503371AD
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Engine Overhaul: Group 11B

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11B-1

SEALANTS AND ADHESIVES . . . . . 11B-6 CAMSHAFT . . . . . . . . . . . . . . . . . . . . 11B-40

GENERATOR AND IGNITION CYLINDER HEAD AND VALVES. . . . 11B-46

THROTTLE BODY AND EGR OIL PUMP CHAIN. . . . . . . . . . . . . . . . 11B-54

Item Standard value Limit

Item Standard value Limit

FASTENER TIGHTENING SPECIFICATIONS

Plastic region tightening bolts are used in some parts

SEALANTS AND ADHESIVES

Points of application Specified sealant / adhesive

LIQUID GASKET (FIPG)

without break to eliminate leakage from joints. CLEANING OF GASKET SURFACE

residue in gaps of parts. APPLICATION PROCEDURE

Tool Tool number and Supersession Application

MB992106 − Installation of O-ring on injector

MB991396 − Removal and installation of oil

MD998727 MD998727-01 Removal of oil pan

MB991448 MB991448-01 Press fit of front oil seal

MD998735 MD998735-01 Compression of valve spring

MB992085 − Extraction of valve stem seal

MD998780 MIT216941 Extraction and press fit of piston

MB991614 General service tool Installation of crankshaft bearing

MD998718 MD998718-01 Press fit of rear oil seal

MB991346 − Removal and installation of oil

MB991398 − Removal and installation of spark

GENERATOR AND IGNITION SYSTEM

Removal steps Removal steps (Continued)

Required Special Tools:

<<A>> CRANKSHAFT PULLEY BOLT REMOVAL

<<B>> SPARK PLUG REMOVAL

INSTALLATION SERVICE POINTS

>>A<< SPARK PLUGS INSTALLATION

>>B<< CRANKSHAFT PULLEY / WASHER /

THROTTLE BODY AND EGR SYSTEM

3 9.5 ± 2.5 N·m

22 21 4.0 ± 1.0 N·m

Removal steps Removal steps (Continued)

>>A<< MANIFOLD ABSOLUTE PRESSURE (MAP)

>>B<< EGR INLET PIPE GASKET / EGR VALVE

Exhaust gas Protrusion

2. Tighten mounting bolts to the specified torque of 20 ± 2 N⋅m

>>C<< EGR VALVE GASKET INSTALLATION

3.5 ± 1.5 N·m 20 ± 2 N·m

3.5 ± 1.5 N·m 20 ± 2 N·m

Removal steps Removal steps (Continued)

Required Special Tool:

INSTALLATION SERVICE POINTS

>>A<< ENGINE OIL PRESSURE SWITCH INSTAL-

>>B<< GENERATOR BRACKET INSTALLATION

>>C<< INTAKE MANIFOLD INSTALLATION

>>D<< INTAKE MANIFOLD STAY INSTALLATION

>>F<< INJECTOR AND INJECTOR SUPPORT

5. Securely assemble the injector to the injector groove and

>>G<< FUEL RAIL ASSEMBLY / BRACKET /

8.0 ± 2.0 N·m

6 8.0 ± 2.0 N·m

Removal steps Removal steps (Continued)

INSTALLATION SERVICE POINTS

>>A<< CRANKSHAFT POSITION SENSOR