EG1–268

5S–FE ENGINE – LUBRICATION SYSTEM

LUBRICATION SYSTEM

DESCRIPTION
A fully pressurized, fully filtered lubrication system has been adopted for this engine.
OPERATION
 EG1–269
5S–FE ENGINE – LUBRICATION SYSTEM

A pressure feeding lubrication system has been adopted to supply oil to the moving parts of this
engine. The lubrication system consists of an oil pan, oil pump, oil filter and other external parts
which supply oil to the moving parts in the engine block. The oil circuit is shown in the illustration
at the top of the previous page. Oil from the oil pan is pumped up by the oil pump. After it passes
through the oil filter, it is through the various oil holes in the crankshaft and cylinder block. After
passing through the cylinder block and performing its lubricating function, the oil is returned by
gravity to the oil pan. A dipstick on the center left side of the cylinder block is provided to check
the oil level.
OIL PUMP
The oil pump pumps up oil from the oil pan and feeds it under pressure to the various parts of the
engine. An oil strainer is mounted in front of the inlet to the oil pump to remove impurities. The
oil pump itself is a trochoid type pump, inside of which is a drive rotor and a driven rotor. When
the drive rotor rotates, the driven rotor rotates in the same direction, and since the axis of the
drive rotor shaft is different from the center of the driven rotor, the space between the two rotors
changes as they rotate. Oil is drawn in when the space widens and is discharged when the space
becomes narrow.
OIL PRESSURE REGULATOR (RELIEF VALVE)
At high engine speeds, the engine oil supplied by the oil pump exceeds the capacity of the engine
to utilize it. For that reason, the oil pressure regulator works to prevent an oversupply of oil.
During normal oil supply, a coil spring and valve keep the bypass closed, but when too much oil
is being fed, the pressure becomes extremely high, overpowering the force of the spring and
opening the valves. This allows the excess oil to flow through the valve and return to the oil pan.
OIL FILTER
The oil filter is a full flow type filter with a relief valve built into the paper filter element. Particles
of metal from wear, airborne dirt, carbon and other impurities can get into the oil during use and
could cause accelerated wear or seizing if allowed to circulate through the engine. The oil filter,
integrated into the oil line, removes these impurities as the oil passes through it. The filter is
mounted outside the engine to simplify replacement of the filter element. A relief valve is also
included ahead of the filter element to relieve the high oil pressure in case the filter element
becomes clogged with impurities. The relief valve opens when the oil pressure overpowers the
force of the spring. Oil passing through the relief valve bypasses the oil filter and flows directly
into the main oil hole in the engine.
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5S–FE ENGINE – LUBRICATION SYSTEM

PREPARATION
SST (SPECIAL SERVICE TOOLS)
09032–00100 Oil Pan Seat Cutter

09226–10010 Crankshaft Front & Rear Bearing Crankshaft front oil seal
Replacer

09228–06500 Oil Filter wrench

09616–30011 Steering Worm Bearing Adjusting Oil pump pulley

Screw Wrench

09620–30010 Steering Gear Box Replacer Set

(09627–30010) Steering Sector Shaft Bushing Oil pump oil seal

Replacer

(09631–00020) Handle Oil pump oil seal

RECOMMENDED TOOLS
09090–04000 Engine Sling Device For suspending engine

09200–00010 Engine Adjust Kit

09905–00013 Snap Ring Pliers

EQUIPMENT
Oil pressure gauge

Precision straight edge Oil pump

Torque wrench
 EG1–271
5S–FE ENGINE – LUBRICATION SYSTEM

LUBRICANT
Item Capacity Classification
Engine oil (M/T) API grade SG or SH, Energy–Conserving ΙΙ
Dry fill 4.2 liters (4.4 US qts, 3.7 Imp. qts) mutigrade engine oil or ILSAC multigrade
Drain and refill engine oil and recommended viscosity oil
w/ Oil filter change 3.6 liters (3.8 US qts, 3.2 Imp. qts)
w/o Oil filter change 3.4 liters (3.6 US qts, 3.0 Imp. qts)
Engine oil (A/T)
Dry fill 4.3 liters (4.5 US qts, 3.8 imp. qts)
Drain and refill
w/ Oil filter change 3.6 liters (3.8 US qts, 3.2 Imp. qts)
w/o Oil filter change 3.4 liters (3.6 US qts, 3.0 Imp. qts)

SSM (SPECIAL SERVICE MATERIALS)

08826–00080 Seal packing or equivalent Oil pan

08833–00080 Adhesive 1344, Oil pressure switch

THREE BOND 1344,
LOCTITE 242 or equivalent
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5S–FE ENGINE – LUBRICATION SYSTEM

OIL PRESSURE CHECK

1. CHECK ENGINE OIL QUALITY
Check the oil for deterioration, entry of water, dis–
coloring or thinning.
If the quality is visibly poor, replace the oil.
Oil grade:
API grade SG or SH, Energy Conserving II multi–
grade engine oil or ILSAC multigrade engine oil.
Recommended viscosity is as shown in the illustra–
tion.
2. CHECK ENGINE OIL LEVEL
The oil level should be between the “L” and “F” marks
on the dipstick.
If low, check for leakage and add oil up to “F” mark.

NOTICE:
• When inserting the oil dipstick, insert the curved tip
of the dipstick facing the same direction as the
curve of the guide.
• If the dipstick gets caught while inserting it, do not
force it in. Reconfirm the direction of the dipstick.

3. REMOVE OIL PRESSURE SWITCH, AND INSTALL

OIL PRESSURE GAUGE
4. WARM UP ENGINE
Allow the engine to warm up to normal operating
temperature.
5. CHECK OIL PRESSURE
Oil pressure:
At idle
29 kPa (0.3 kgf/cm
, 4.3 psi) or more
At 3,000 rpm
245 – 490 kPa (2.5 – 5.0 kg f/cm
, 36 – 71 psi)
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5S–FE ENGINE – LUBRICATION SYSTEM

6. REMOVE OIL PRESSURE GAUGE AND REINSTALL

OIL PRESSURE SWITCH
(a) Remove the oil pressure gauge.
(b) Apply adhesive to 2 or 3 threads of the oil pressure
switch.
Adhesive:
Part No.08833 – 00080, THREE BOND 1344,
LOCTITE 242 or equivalent
(c) Reinstall the oil pressure switch.
7. START ENGINE AND CHECK FOR LEAKS
EG1–274
5S–FE ENGINE – LUBRICATION SYSTEM

OIL AND FILTER REPLACEMENT

CAUTION:
• Prolonged and repeated contact with mineral oil will
result in the removal of natural fats from the skin,
leading to dryness, irritation and dermatitis. In addi–
tion, used engine oil contains potentially harmful
contaminants which may cause skin cancer.
• Care should be taken, therefore, when changing
engine, oil to minimize the frequency and length of
time your skin is exposed to used engine oil. Protec–
tive clothing and gloves that cannot be penetrated
by oil should be worn. The skin should be thorought–
hly washed with soap and water, or use water–less
hand cleaner, to remove any used engine oil. Do not
use gasoline, thinners, or solvents.
• In order to preserve the environment, used oil and
used oil filter must be disposed of only at designated
disposal sites.

1. DRAIN ENGINE OIL

(a) Remove the oil filler cap.
(b) Remove the oil drain plug, and drain the oil into a
container.

2. REPLACE OIL FILTER

(a) Using SST, remove the oil filter.
SST 09228–06500

(b) Check and clean the oil filter installation surface.

 EG1–275
5S–FE ENGINE – LUBRICATION SYSTEM

(c) Apply clean engine oil to the gasket of a new oil filter.

(d) Lightly screw the oil filter into place, and tighten it
until the gasket contacts the seat.
(e) Using SST, tighten it an additional 3/4 turn.
SST 09228–06500

3. FILL WITH ENGINE OIL

(a) Clean and install the oil drain plug with a new gasket.
Torque: 39 N–m (400 kgf–cm, 29 ft–lbf)
(b) Fill with new engine oil.
Oil grade: (See step 1 on page EG1–272)
Capacity (M/T):
Drain and refill
w/ Oil filter change
3.6 liters (3.8 US qts, 3.2 Imp. qts)
w/o Oil filter change
3.4 liters (3.6 US qts, 3.0 Imp. qts)
Dry fill
4.2 liters (4.4 US qts, 3.7 Imp. qts)
Capacity (A/T):
Drain and refill
w/ Oil filter change
3.6 liters (3.8 US qts, 3.2 Imp. qts)
w/o Oil filter change
3.4 liters (3.6 US qts, 3.0 Imp. qts)
Dry fill
4.3 liters (4.5 US qts, 3.8 Imp. qts)
(c) Reinstall the oil filler cap.
4. START ENGINE AND CHECK FOR LEAKS
5. RECHECK ENGINE OIL LEVEL
(See page EG1–272)
EG1–276
5S–FE ENGINE – LUBRICATION SYSTEM

OIL PUMP
COMPONENTS FOR REMOVAL AND
INSTALLATION

OIL PUMP REMOVAL

HINT: When repairing the oil pump, the oil pan and
strainer should be removed and cleaned.

1. DISCONNECT NEGATIVE (–) TERMINAL CABLE

FROM BATTERY
CAUTION: Work must be started after 90 seconds from
the time the ignition switch is turned to the “LOCK”
position and the negative (–) terminal cable is discon–
nected from the battery.
2. REMOVE HOOD
3. DRAIN ENGINE OIL (See page EG1–274)
 EG1–277
5S–FE ENGINE – LUBRICATION SYSTEM

4. REMOVE FRONT EXHAUST PIPE

(a) Loosen the 2 bolts, and disconnect the bracket.
(b) Remove the 2 bolts and nuts holding the front exhaust
pipe to the center exhaust pipe.
(c) Using a 14 mm deep socket wrench, remove the 3
nuts holding the front exhaust pipe to the WU–TWC.
(d) Remove the front exhaust pipe and gaskets.

5. REMOVE STIFFENER PLATE

Remove the 3 bolts and stiffener plate.

6. REMOVE OIL PAN

(a) Remove the dipstick.
(b) Remove the 17 bolts and 2 nuts.

(c) Insert the blade of SST between the cylinder block

and oil pan, and cut off applied sealer and remove the
oil pan.
SST 09032 – 00100
NOTICE:
• Do not use SST for the oil pump body side and rear
oil seal retainer.
• Be careful not to damage the oil pan flange.

7. REMOVE OIL STRAINER

Remove the bolt, nuts, oil strainer and gasket.
EG1–278
5S–FE ENGINE – LUBRICATION SYSTEM

8. SUSPEND ENGINE WITH ENGINE SLING DEVICE

9. REMOVE TIMING BELT (See page EG1–26)

10. REMOVE NO.2 IDLER PULLEY

Remove the bolt and pulley.

11. REMOVE CRANKSHAFT TIMING PULLEY

If the pulley cannot be removed by hand, use 2 screw–
drivers.
HINT: Position shop rags as shown to prevent
damage.

12. REMOVE OIL PUMP PULLEY

Using SST, remove the nut and pulley.
SST 09616 – 30011

13. REMOVE OIL PUMP

(a) Remove the 12 bolts.
 EG1–279
5S–FE ENGINE – LUBRICATION SYSTEM

(b) Using a plastic–faced hammer, remove the oil pump

by carefully tapping the oil pump body.
(c) Remove the gasket.

COMPONENTS FOR DISASSEMBLY AND

ASSEMBLY

OIL PUMP DISASSEMBLY

1. REMOVE RELIEF VALVE
(a) Using snap ring pliers, remove the snap ring.
(b) Remove the retainer, spring and relief valve.
EG1–280
5S–FE ENGINE – LUBRICATION SYSTEM

2. REMOVE DRIVE AND DRIVEN ROTORS

Remove the 2 bolts, pump body cover, O–ring, the
drive and driven rotors.

OIL PUMP INSPECTION

1. INSPECT RELIEF VALVE
Coat the valve with engine oil and check that it falls
smoothly into the valve hole by its own weight.
If it doesn’t, replace the relief valve. If necessary,
replace the oil pump assembly.

2. INSPECT DRIVE AND DRIVEN ROTORS

A. Inspect rotor body clearance
Using a thickness gauge, measure the clearance be–
tween the driven rotor and body.
Standard body clearance:
0.10 – 0.16 mm (0.0039 – 0.0063 in.)
Maximum body clearance:
0.20 mm (0.0079 in.)
If the body clearance is greater than maximum, re–
place the rotors as a set. If necessary, replace the oil
pump assembly.
B. Inspect rotor tip clearance
Using a thickness gauge, measure the clearance be–
tween the drive and driven rotor tips.
Standard tip clearance:
0.04 – 0.16 mm (0.0016 – 0.0063 in.)
Maximum tip clearance:
0.20 mm (0.0079 in.)
If the tip clearance is greater than maximum, replace
the rotors as a set.
 EG1–281
5S–FE ENGINE – LUBRICATION SYSTEM

OIL PUMP OIL SEAL REPLACEMENT

1. REMOVE OIL SEAL
Using a screwdriver, pry out the oil seal.

2. INSTALL OIL SEAL

(a) Using SST and a hammer, tap in a new oil seal until its
surface is flush with the oil pump cover edge.
SST 09620–30010 (09627–30010, 09631–00020)
(b) Apply MP grease to the oil seal lip.

CRANKSHAFT FRONT OIL SEAL

REPLACEMENT
HINT: There are 2 methods (A and B) to replace the oil
seal which are as follows:

REPLACE CRANKSHAFT FRONT OIL SEAL

A. If oil pump is removed from cylinder block:
(a) Using screwdriver and hammer, tap out the oil seal.

(b) Using SST and a hammer, tap in a new oil seal until its
surface is flush with the oil pump case edge.
SST 09226 –10010
(c) Apply MP grease to the oil seal lip.
EG1–282
5S–FE ENGINE – LUBRICATION SYSTEM

B. If oil pump is installed to the cylinder block:

(a) Using a knife, cut off the oil seal lip.
(b) Using a screwdriver, pry out the oil seal.
NOTICE: Be careful not to damage the crankshaft. Tape
the screwdriver tip.

(c) Apply MP grease to a new oil seal lip.

(d) Using SST and a hammer, tap in the oil seal until its
surface is flush with the oil pump case edge.
SST 09226 –10010

OIL PUMP ASSEMBLY

(See Components for Disassembly and Assembly)
1. INSTALL DRIVE AND DRIVEN ROTORS
(a) Place the drive and driven rotors into pump body with
the marks facing the pump body cover side.

(b) Install the pump body cover with the 2 bolts.

Torque: 8.8 N–m (90 kgf–cm. 78 in.–lbf)

2. INSTALL RELIEF VALVE

(a) Insert the relief valve, spring and retainer into the
pump body hole.
(b) Using snap ring pliers, install the snap ring.
 EG1–283
5S–FE ENGINE – LUBRICATION SYSTEM

OIL PUMP INSTALLATION

(See Components for Removal and Installation)
1. INSTALL OIL PUMP
Install a new gasket and the oil pump with the 12
bolts.
Torque: 9.3 N–m (95 kgf–cm, 82 in.–lbf)
HINT: Long bolts are indicated in the illustration.
Bolt length:
Long bolt
35 mm (1.38 in.)
Others
25 mm (0.98 in.)

2. INSTALL OIL PUMP PULLEY

(a) Align the cutouts of the pulley and shaft, and slide on
the pulley.

(b) Using SST, install the nut.

SST 09616–30011
Torque: 28 N–m (290 kgf–cm, 21 ft–lbf)

3. INSTALL CRANKSHAFT TIMING PULLEY

(a) Align the timing pulley set key with the key groove of
the pulley.
(b) Slide on the timing pulley, facing the flange side
inward.
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5S–FE ENGINE – LUBRICATION SYSTEM

4. INSTALL NO.2 IDLER PULLEY

(a) Install the pulley with the bolt.
Torque: 42 N–m (425 kgf–cm, 31 ft–lbf)
HINT: Use a bolt 35 mm (1.38 in.) in length.
(b) Check that the idler pulley moves smoothly.
5. INSTALL TIMING BELT (See page EG1–33)
6. REMOVE ENGINE SLING DEVICE

7. INSTALL OIL STRAINER

Install a new gasket and the oil strainer with bolt and
nuts.
Torque: 5.4 N–m (55 kgf–cm, 48 in.–lbf)

8. INSTALL OIL PAN

(a) Remove any old packing (FIPG) material and be care–
ful not to drop any oil on the contact surfaces of the
oil pan and cylinder block.
• Using a razor blade and gasket scraper, remove
all the old packing (FIPG) material from the
gasket surfaces and sealing groove.
• Thoroughly clean all components to remove all
the loose material.
• Using a non–residue solvent, clean both sealing
surfaces.
NOTICE: Do not use a solvent which will affect the paint–
ed surfaces.
(b) Apply seal packing to the oil pan as shown in the
illustration.
Seal packing:
Part No.08826 – 00080 or equivalent
• Install a nozzle that has been cut to a 3–5 mm
(0.12–0.20 in.) opening.
• Parts must be assembled within 5 minutes of
application. Otherwise the material must be re–
moved and reapplied.
• Immediately remove nozzle from the tube and
reinstall cap.
 EG1–285
5S–FE ENGINE – LUBRICATION SYSTEM

(c) Install the oil pan with 17 bolts and 4 nuts.

Torque: 5.4 N–m (55 kgf–cm, 48 in.–lbf)
(d) Install the dipstick.

9. INSTALL STIFFENER PLATE

Install the stiffener plate with the 3 bolts.
Torque: 37 N–m (380 kgf–cm, 27 ft–Ibf)

10. INSTALL FRONT EXHAUST PIPE

(a) Place 2 new gaskets on the front and rear of the front
exhaust pipe.
(b) Temporarily install the 2 bolts and 2 new nuts holding
front exhaust pipe to the center exhaust pipe.
(c) Using a 14 mm deep socket wrench, install the 3 new
nuts holding the front exhaust pipe to the WU–TWC.
Torque: 62 N–m (630 kgf–cm, 46 ft–lbf)
(d) Tighten the 2 bolts and 2 nuts holding front exhaust
pipe to the center exhaust pipe.
Torque: 56 N–m (570 kgf–cm, 41 ft–lbf)
(e) Install the bracket with the 2 bolts.
11. CONNECT NEGATIVE (–) TERMINAL CABLE TO
BATTERY
12. FILL WITH ENGINE OIL (See page EG1–275)
13. START ENGINE AND CHECK FOR LEAKS
14. RECHECK ENGINE OIL LEVEL
15. INSTALL HOOD
EG1–286
5S–FE ENGINE – LUBRICATION SYSTEM

OIL COOLER
COMPONENTS FOR REMOVAL AND
INSTALLATION

OIL COOLER REMOVAL

1. DRAIN ENGINE COOLANT
2. REMOVE OIL FILTER
Using SST, remove the oil filter.
SST 09228–06500

3. DISCONNECT WATER BYPASS HOSES FROM OIL

COOLER
Disconnect the 2 water bypass hoses.
 EG1–287
5S–FE ENGINE – LUBRICATION SYSTEM

4. REMOVE OIL COOLER

(a) Remove the relief valve and plate washer.
(b) Remove the nut and oil cooler.
(c) Remove the O–ring and gasket from the oil cooler.

OIL COOLER INSPECTION

1. INSPECT RELIEF VALVE
Push the valve with a wooden stick to check if it is
stuck.
If stuck, replace the relief valve.

2. INSPECT OIL COOLER

Check the oil cooler for damage or clogging.
If necessary, replace the oil cooler.

OIL COOLER INSTALLATION

(See Components for Removal and Installation)
1. INSTALL OIL COOLER
(a) Install new O–ring and gasket to the oil cooler.

(b) Apply a light coat of engine oil on the threads and

under the head of the relief valve.
(c) Temporarily install the oil cooler with the nut.
(d) Install the plate washer and relief valve.
Torque: 78 N–m (800 kgf–cm, 58 ft–lbf)
(e) Tighten the nut.
Torque: 7.8 N–m (80 kgf–cm, 69 In.–lbf)
EG1–288
5S–FE ENGINE – LUBRICATION SYSTEM

2. CONNECT WATER BYPASS HOSES

Connect the 2 water bypass hoses.

3. INSTALL OIL FILTER

(a) Clean the oil filter contact surface on the filter
mounting.

(b) Lubricate the filter rubber gasket with engine oil.

(c) Tighten the oil filter by hand until the rubber gasket
contacts the seat of the filler mounting. Then using
SST, give it an additional 3/4 turn to seat the oil filter.
SST 09228–06500

4. FILL WITH ENGINE COOLANT

(See page EG1–241)
5. START ENGINE AND CHECK FOR LEAKS
6. CHECK ENGINE OIL LEVEL
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5S–FE ENGINE – LUBRICATION SYSTEM

SERVICE SPECIFICATIONS
SERVICE DATA
Oil pressure

Oil pump Body clearance

Tip clearance

TORQUE SPECIFICATIONS
Part tightened
Oil pan x Drain plug
Oil pump body cover x Oil pump body
Oil pump x Cylinder block
Oil pump pulley x Oil pump drive shaft
No.2 idler pulley x Cylinder block
Oil strainer x Cylinder block
Oil strainer x Oil pump
Oil pan x Cylinder block
Oil pan x Oil pump
Stiffener plate x Cylinder block
Stiffener plate x Transaxle case
Front exhaust pipe x WU–TWC
Front exhaust pipe x Center exhaust pipe
Oil cooler x Cylinder block (Relief valve)
Oil cooler x Cylinder block (Nut)
 5S-FE ENGINE –

-Memo