Manual Do Motor Asp 52 em Português-Raridade
Manual Do Motor Asp 52 em Português-Raridade
Manual Do Motor Asp 52 em Português-Raridade
ENGINE INSTALLATION
Engine Orientation
The XLS .52A can be orientated in any position on the firewall. Keep in mind
that when the engine is mounted inverted, carburetor adjustments will need
to be made differently and the fuel tank may need to be lowered. (See fuel
tank size and orientation to carburetor on the next page.)
Global Services 18480 Bandilier Circle Fountain Valley, CA 92708 Phone: (714) 963-0329 Fax: (714) 964-6236 Email: service@globalhobby.com 1
Engine Bolts & Firewall Requirements Rear Needle Valve Assembly Installation
The engine should be mounted to either a heavy-duty, glass-filled nylon The rear needle valve assembly is held in place using the two socket-cap
engine mount, a machined aluminum engine mount or an integrated hardwood screws and two split washers
beam mount. Use only high-quality steel cap screws and related hardware provided with the rear needle
to mount the engine to the engine mount. The firewall in the airplane should valve assembly. To mount the
be aircraft grade 5-ply plywood no less than 1/4" thick and the firewall should assembly, remove the two upper
be reinforced to meet the torque and weight of the engine. backplate screws, set the assembly
in place, then install and tighten
Muffler Installation the two longer socket-cap screws
The muffler is mounted to the engine using the two steel socket-cap screws, and split washers. Carefully
two split washers and one of the two gaskets provided. The second gasket install the length of silicon fuel line
should be kept as a spare. Tighten provided between the needle
both screws firmly to prevent the valve assembly and the carburetor. The fuel pick-up line from your fuel tank
muffler from loosening during will connect to the larger brass nipple on the needle valve assembly.
flight. The exhaust cone on the
Standard-Mount Needle Valve Assembly Installation
back of the muffler can be adjusted
to better match the installation of It is not necessary to use the rear-mounted needle valve assembly with your
your particular application. To engine. You can easily mount the
adjust the exhaust cone, loosen needle valve into the side of the
the retaining nut using an adjustable carburetor if you wish.
wrench. Rotate the cone to the
desired angle and tighten the retaining nut completely while holding the axial Using an adjustable wrench,
bolt in place from the front of the muffler, using a flat blade screwdriver. It is carefully loosen and remove the
important to tighten the retaining nut firmly to prevent the exhaust cone from plug from the side of the carburetor.
loosening during flight. Carefully loosen and remove the
needle valve assembly (including
Fuel Tank Size & Orientation to Carburetor the clear gaskets) from the rear
Ideally, the stopper in the fuel tank should be even with the high speed needle needle valve mount. Carefully thread the needle valve assembly (with the
valve or just slightly below it. Some models will only allow the fuel tank to be clear gaskets in place) into the side of the carburetor and tighten it securely
mounted higher than the ideal location. A fuel tank that is positioned higher using an adjustable wrench.
than the ideal location usually doesn’t pose any problem except when it is
Optional Needle Valve Extension
mounted excessively higher and/or is used in conjunction with an inverted
mounted engine or during extreme aerobatic flight. If you mount the engine If an extension is required to adjust the high speed needle valve, use a 1.5mm
inverted, we strongly suggest lowering the fuel tank so the stopper assembly diameter wire of the necessary length. Loosen the set screw in the side of
is slightly below the high speed needle valve. Doing this will prevent fuel the needle valve, insert the wire into the end of the needle valve and tighten
from siphoning into the engine and flooding it when the fuel tank is full. If the set screw firmly. If the extension is more than 3" long we recommend
you cannot lower the fuel tank far enough, we suggest lowering it as far as supporting the outer end of the extension to prevent excessive vibration.
can be allowed in your particular application.
Carburetor Rotor Bolt
The size of the fuel tank used should be 10oz. - 12oz., depending on the
model and the length of flights desired. Use of a 12oz. tank will provide The rotor bolt assembly holds the throttle barrel in the carburetor body and
between 10 - 15 minutes of run time at full throttle. Use of a fuel tank any requires no adjustment. As part of your maintenance schedule you should
larger than 12oz. can lead to excessive leaning of the engine during flight periodically check that the rotor bolt and nut are tight.
and is not recommended.
Propeller Installation
Carburetor Installation IMPORTANT Before installing the propeller it must be properly balanced.
The carburetor is held in place using two socket-cap screws. Slide the base Running your engine using an
of the carburetor into the crankcase, out-of-balance propeller can lead
being careful to keep the carburetor to excessive vibration, which will
perpendicular to the front of the result in excessive stress and
engine. Using your thumb, push wear on both the engine and the
down firmly on the carburetor so airframe. Balance the propeller
that the base of the carburetor using the method recommended
sets completely into the crankcase. by the propeller manufacturer.
An o-ring is installed on the Several products are available to
carburetor throat to seal the joint. properly balance propellers. Ask
While holding the carburetor firmly your local retailer for more information about these items.
down into place, install and tighten the socket-cap screws using the hex Using a 1/4" drill bit or a prop reamer, enlarge the hole in the propeller hub to
wrench provided. fit the crankshaft. The diameter of the crankshaft is 1/4". Slide the
WARNING If you are installing a spinner onto your engine, the cone of The high speed needle valve is used to meter the air/fuel mixture at full
the spinner must not rub against the propeller. Allowing the spinner throttle. Turn the needle clockwise to lean the mixture or turn the needle
cone to rub against the propeller could lead to propeller damage and counterclockwise to richen the mixture. When you start the engine for the
eventual propeller failure. very first time the needle valve should be turned in completely, then backed
out 2-1/2 turns. When you start the engine after that, leave the needle valve
in the same position it was in when you shut down the engine.
PROPELLER, GLOW PLUG & FUEL
Low Speed Needle Valve
Propeller Recommendation
The low speed needle valve regulates the air/fuel mixture at idle and during
The diameter and pitch of the propeller needed for the XLS .52A will vary transition from idle to full throttle. Turn the idle mixture screw clockwise to
greatly depending on the application the engine is used in. The weight, drag lean the mixture. Turn it counterclockwise to richen the mixture. The idle
and the type of model and how you intend to fly it are all factors in determining mixture screw is preset from the factory, but minor adjustments may need to
the correct size propeller to use. Experimentation will be necessary to find be made. To reset the mixture screw to the factory setting open the
the optimal size propeller for your particular application. Ideally you want a carburetor barrel completely. While holding the barrel open, turn the
propeller that the engine will turn in the 10,000 - 15,000 rpm range on the mixture screw in until it stops. From this point, turn the mixture screw
ground, yet power the airplane sufficiently. Using a propeller that is too small out 3 turns. This is the factory setting.
will cause the engine to run at too high an rpm Using a propeller that is too
large will cause the engine to run at too low an rpm and cause it to lug down
too much. In both instances this can lead to premature engine wear and
STARTING PROCEDURE
eventual failure.
The XLS .52A can be started using an electric starter or it can be started by
hand. For safety and ease of starting, especially when the engine is new,
PROPELLER SIZE RECOMMENDATIONS
we recommend using an electric starter. The following two procedures
9x6 11 x 4-8 should be done with the power to the glow plug off.
WARNING We do not recommend using fuels that contain only BREAK-IN PROCEDURE
synthetic lubricants. Synthetic lubricants have a much lower flash point
IMPORTANT The XLS .52A is an ABC engine. The cylinder sleeve is
than Castor Oil lubricants. Flash point is the point at which the lubricant
tapered at the top, causing severe resistance when the piston moves through
begins to actually burn and lose its lubricating qualities. Using fuels
the top of the stroke. This is normal. When the engine heats up to operating
containing a blend of Castor Oil and synthetic lubricants results in an
temperature, this resistance will decrease and the proper clearance will be
engine that runs cooler and lasts longer. One lean run using a fuel
containing only synthetic lubricants can cause engine failure. Using achieved. The break-in procedure will guide you through the steps
fuels with a Castor Oil and synthetic blend of lubricants greatly reduces necessary to properly break in your new ABC engine. Please follow the
this chance. steps on the next page closely.
Global Services 18480 Bandilier Circle Fountain Valley, CA 92708 Phone: (714) 963-0329 Fax: (714) 964-6236 Email: service@globalhobby.com 3
The break-in process allows the engine parts to perfectly fit each other and ❑ 3) With the engine running at full power, carefully lift the nose of the
properly protect each part from premature wear. The engine should be airplane about 45º into the air. The mixture should not become too lean, but
broken in using a fuel that contains no more than 10% nitro methane and no you may hear a slight increase in rpm. If the engine sags, or loses rpm when
less than 20% Castor Oil lubricant. Synthetic lubricant fuels should not be you hold the nose up, the mixture is too lean. If this is the case, slightly
used during the break-in procedure. For the break-in procedure we richen the mixture and follow the test once more.
recommend mounting the engine into the airplane it will be used in. This
IMPORTANT Rpm will increase about 10% - 30% in the air. This is due to
way the muffler, fuel tank and throttle linkage can all be tested in combination
the forward motion of the aircraft as it is flying. Because of this more air is
with the engine. If your airplane uses a cowling, it should be removed during
entering the carburetor, at a higher force, which causes the mixture to lean
the break-in procedure.
out. Additionally, as the fuel level in the fuel tank goes down, fuel draw
❑ 1) Turn the high speed needle valve out 2-1/2 turns from the fully closed becomes more difficult for the engine, especially during aerobatics, thus
position. causing the mixture to go lean. It is imperative that you set the mixture rich
while on the ground to compensate for the leaning tendencies that will
❑ 2) If you are using an electric starter to start the engine, follow the
happen in the air. Always watch the exhaust during your flight. The engine
procedure in the previous section. If you are starting the engine by hand,
should leave a noticeable white smoke trail at all times. If there is no smoke
follow that procedure in the previous section.
trail, the engine is running too lean. You should land immediately and reset
❑ 3) Open the throttle barrel to approximately 1/4 throttle. Connect the the mixture.
power to the glow plug. Start the engine using an electric starter or by hand.
If starting by hand you will need to vigorously flip the propeller through the Setting the Low Speed Needle Valve
compression stroke several times before the engine will start.
❑ 1) Start the engine and lean out the high speed needle valve as per the
❑ 4) Once the engine starts, open the throttle barrel to about 1/2 throttle. previous steps. Close the throttle until the slowest reliable idle is reached.
You may need to lean the high speed needle valve in about 1/4 turn to keep Allow the engine to idle for about 30 seconds.
the engine running at half throttle.
❑ 2) Quickly advance the throttle to full. If the engine just stops running as
❑ 5) After the engine has been running about 1 minute, remove the power soon as the throttle is advanced, the idle mixture is too lean. With the
from the glow plug and slowly advance the throttle barrel to full throttle. engine stopped, richen the idle mixture about 1/8 of a turn.
Adjust the high speed needle valve so that the engine is running very rich.
❑ 3) Repeat steps # 1 and # 2 until the engine will transition from idle to full
You should notice excessive white smoke coming from the exhaust. Let the
throttle smoothly. Minor hesitation in the transition is normal.
engine run for approximately 10 minutes then stop the engine.
❑ 4) If you quickly advance the throttle from idle to full and the engine seems
❑ 6) Let the engine cool for approximately 10 minutes then restart it. Set
to be very rich during transition (i.e., lots of smoke coming from the exhaust),
the high speed needle valve mixture to a slightly leaner setting, about 1/4
the mixture is too rich. With the engine stopped, lean the idle mixture about
turn more in. Let the engine run for about 5 minutes at this setting, then stop
1/8 of a turn.
the engine and let it cool for approximately 10 minutes.
❑ 5) Repeat steps # 1 and # 4 until the engine will transition from idle to full
❑ 7) Repeat the procedure in step # 6, while leaning the needle valve slightly
throttle smoothly. Minor hesitation in the transition is normal.
more each time. In all, you should run the engine about a total of 30 minutes
of actual running time. After 30 minutes of run time the engine is ready for
flight. Fly the airplane with the engine set as rich as possible, but with MAINTENANCE
adequate power to fly the airplane. After each flight, lean the mixture slightly.
● Avoid running the engine under dusty conditions. If you are in a dusty
Continue to do this for about 5 flights. At this point the engine should hold a
environment we suggest using an air filter over the carburetor.
good setting on the high speed needle valve and you can begin to fine tune
the needle valve settings to increase performance. ● At the end of every flying day, purge the engine of fuel by disconnecting
the fuel line and allowing the engine to run dry of fuel.
OPTIMIZING THE MIXTURE SETTINGS ● Use a high quality after-run oil in the engine after you have purged the
engine of fuel. Inject the oil into the engine through the carburetor and through
Now that your engine is broken in, you can set the high and low speed needle the glow plug hole. Rotate the crankshaft several times to distribute the oil
valves for optimum performance. throughout the engine. This will prevent the engine from forming rust.
WARNING Be careful never to lean the engine out too much. Remember ● Wipe the outside of the engine dry using a soft cloth.
that the lubricants for your engine are suspended in the fuel. If you lean out ● Use a fuel filter between the fuel tank and the carburetor.
the fuel mixture too much you will also be lowering the amount of lubricant
● Periodically check to make sure all of the engine bolts are tight.
entering your engine. Less lubricant means more chance of your engine
overheating and possible engine failure. Information about returning your engine for warranty
service can be found on the separate parts list
Setting the High Speed Needle Valve
packaged with these operating instructions.
❑ 1) Start the engine and remove the power from the glow plug. Allow
the engine to warm up for about 1 minute. Magnum XLS Series engines are distributed exclusively
by Global Hobby Distributors 18480 Bandilier Circle,
❑ 2) After the engine has warmed up, slowly lean the high speed mixture Fountain Valley, CA 92708
until the engine reaches peak rpm. After reaching peak rpm, richen the
mixture slightly until an audible drop in rpm is heard. If you are using a All contents copyright © 2003, Global Hobby
Distributors Version V1.0 February 2003
tachometer this should be between a 200 - 300 rpm drop.
The following information is provided to get your new Magnum XLS .52A engine running right away with minimal effort. We have listed our
recommendations for fuel, propeller, starting procedures and other recommended accessories. Also included is general information about the accessories
needed for the engine that we hope you will find helpful.
This Quick-Start Guide should not be used as a replacement for the Operating Instructions included; rather, it should be used along with the Operating
Instructions. We highly recommend reading through the Operating Instructions to familiarize yourself with each part of the engine, along with the proper
procedures for engine break-in, tuning, care and maintenance.
Fuel: We suggest Power Master 10% 2-Stroke Blend (P/N 275180) for QUICK-STARTING PROCEDURES
break-in.
Engine Preparation
We suggest Power Master 15% 2-Stroke Blend (P/N 275198) for
normal use. ❑ 1) Mount the engine to the recommended engine mount. A wood beam
mount built into the airframe would also be sufficient.
We suggest using Power Master brand fuels. Power Master fuel comes in
10 % and 15% nitromethane contents that can be used in your XLS series ❑ 2) Install the muffler onto the engine using the hardware provided. The
engine. Power Master fuels are blended using only high-quality nitromethane, muffler cone can be rotated to better suit the installation in your model.
methanol, Castor Oil and synthetic lubricants to provide high power Be sure to tighten the nut securely to prevent the muffler cone from loosening.
output, along with easy starting and unmatched lubricating and heat ❑ 3) Install the propeller to the engine using the propeller nut and washer
dissipation qualities. For the extra lubrication necessary for break-in, use provided. Tighten the nut securely using an adjustable wrench.
10% 2-stroke blend. After break-in, for extra performance, use 15%
2-stroke blend. Engine Starting
Fuel Tank: Dubro 12oz. Fuel Tank (P/N 568527) ❑ 1) Carefully turn the high speed needle valve in completely until it stops,
then turn the needle valve out 2-1/2 turns. This is the mixture setting for
Dubro fuel tanks are a perfect match for your XLS series engine. This
initial starting.
size recommendation will give you about 10-15 minutes of run-time at full
throttle, and they are possibly the easiest fuel tanks to assemble and maintain. ❑ 2) If hand starting, prime the engine by opening the throttle barrel
completely, placing your finger over the carburetor opening and flipping
Glow Plug: Thunderbolt # 3 (P/N 115559) the prop through compression 2 -3 times. If you will be using an electric
The Thunderbolt # 3 glow plug is designed to be used in high-performance starter, do not prime the engine. The starter will turn the engine over fast
engines using fuels containing 10% - 20% nitro content and in any enough to draw fuel on its own.
environment. It is a "hot" type of glow plug for easy starting, excellent ❑ 3) Connect the glow starter to the glow plug. Open the carburetor
transition and incredible top end. The glow plug is also very durable and barrel to about 1/4 throttle and start the engine. If you are starting the
able to withstand repeated use, day after day. engine by hand, you will need to vigorously flip the prop several times
before the engine will start. Once the engine begins running, immediately
Propeller: APC 10 x 6 Propeller (P/N 608460)
turn the high speed needle valve in about 1/4 turn to keep the engine running.
We have found that the engine runs at its best using APC brand props. ❑ 4) Advance the throttle to full while turning the high speed needle valve
They are designed to be very efficient and run quiet at high rpm’s, and in to keep the engine running. The engine should be producing a very
they are also durable. Use this size prop to break in your engine, then noticeable white exhaust from the muffler and sound like it is running rough.
change to the prop that best suits your application. Use the guide in the Allow the engine to run only for about 5 minutes, then shut the engine off.
Operating Instructions to help you find the right size propeller.
❑ 5) Now that you have started your engine, it must be properly broken
Glow Driver: Magnum Glow Starter w/Meter (P/N 237438) in. Proper break-in will seat all of the moving parts, particularly the piston
and cylinder. This procedure takes about 30 minutes of run-time and is
The Magnum glow starter is an excellent choice for heating the glow plug.
highly recommended. An engine that is properly broken in will produce
It uses a Sub-C NiCD, includes a meter to determine the quality of your
more power, be more user-friendly and last much longer than an engine
glow plug, and it also includes a charger to recharge the battery. It’s a
that does not receive a break-in period. For this reason we highly
very economical product to purchase and can be used with any engine
recommend following the break-in procedure detailed in the Operating
that uses a glow plug.
Instructions before you run the engine further.
This troubleshooting guide has been provided to help you diagnose and solve most problems that you may encounter with
your Magnum XLS series engine. Most problems encountered can be solved by carefully following the problem-cause-solution
sections below. If you cannot solve the problem using this troubleshooting guide, please feel free to contact us at the
address or phone number listed below.
1) Engine does not start A) Failed glow plug A) Replace glow plug with new one
B) Glow starter not charged and/or faulty B) Fully charge glow starter and/or replace
C) Engine not being turned over fast enough C) Use an electric starter to start engine
D) Low speed needle valve set too lean D) Reset low speed needle valve to factory setting
E) Old or contaminated fuel E) Replace with new fuel
F) Engine flooded with too much fuel F) Remove glow plug and expel fuel from cylinder
G) Faulty fuel tank and/or stopper assembly G) Check and/or replace fuel tank assembly
H) Air leak in fuel system and/or engine H) Replace fuel lines and/or tighten all engine bolts
2) Engine does not draw fuel A) Air leak in fuel system and/or engine A) Replace fuel lines and/or tighten all engine bolts
B) High speed needle valve fully closed B) Reset high speed needle valve to factory setting
C) Low speed needle valve set too lean C) Reset low speed needle valve to factory setting
D) Fuel lines kinked D) Check and straighten fuel lines
E) Defective fuel tank E) Replace fuel tank
4) Engine does not transition A) Failed and/or wrong type glow plug A) Replace with new recommended glow plug
B) Old and/or wrong type fuel B) Replace with new recommended fuel
C) High speed needle valve set too rich C) Set high speed needle valve to leaner setting
D) Low speed needle valve set too lean D) Set low speed needle valve richer
E) Low speed needle valve set too rich E) Set low speed needle valve leaner
F) Air leak in fuel system and/or engine F) Replace fuel lines and/or tighten all engine bolts
G) Propeller too large G) Replace with one size smaller propeller
5) Throttle barrel does not A) Throttle servo linkage out of adjustment A) Adjust throttle linkage to close throttle barrel
close completely completely
6) Engine Overheats A) Engine running too lean A) Richen high speed needle valve
B) Cowl too restrictive B) Open larger vents in cowling to allow air to exit
C) Wrong type of fuel used C) Use fuel with recommended oil content
D) Engine not fully broken in D) Allow engine further break-in time
7) Engine stops abruptly A) Engine running too lean A) Richen high speed needle valve
B) Piston & sleeve out of tolerances B) Return engine to Global Services
● Always send the complete engine including the carburetor and muffler. The engine must be removed from the model.
● Include a note detailing the problem or service you are requesting. Service cannot be provided without this information. Include your daytime
phone number in the event we need more details pertaining to the service requested.
● You may request an estimate of services at the time you return your engine for service. An omission of this request implies permission for the
Magnum Service Center to service your engine at our discretion.
● Include a method of payment for any service charges. If not specified, the unit will be returned to you C.O.D.
● Send the engine to us by United Parcel Service, Federal Express or by Insured Mail. Postage is not refundable. Send to:
DIMENSIONS
A 3-3/8" H 1-7/16"
B 3-1/2" I 1-3/4"
C 4-3/4" J 2-1/16"
D 2-7/8" K 1-1/16"
E 3-1/2" L 1-7/16"
F 11/16" M 1-3/4"
G 1-1/8" N 7/16"