100-200rpm, and the engine may vibrate to some degree on the
engine mount.
FUEL TANK INSTALLATION TIPS
The fuel tank should be located close to the engine. The top surface of
the fuel tank should be slightly higher than the centre line of the main
spray nozzle in the carburettor. For West engines, this will be the
same height as the needle valve. The size and location of the fuel tank
will greatly affect the operation of the engine. When using pipe
pressure, make sure to seal all joints between the cap and the fuel
tank, and the cap and the fuel tubing. This will prevent fuel or
pressurised gas from leaking out when the engine is running.
FUEL
We recommend to only use Liquid Gold/Pro Synth 2000 fuel in your
West Eurotech 52 T2 engine, containing between 5 - 15%
nitromethane. Note that even a small change (3-5%) in nitromethane
will improve flexibility, making the needle valve adjustment less
critical and improving throttle response.
GLOW PLUG
Type and quality of the glow plug used in your engine can have a
considerable effect on performance and reliability. We recommend
operating your engine with a Weston Pro Plug PP4 or PP5
long reach
glow plug.
PROPS
Suggested props are for;
11x9”
11" x 6/8", 12.25" x 3.75", 12" x 5/6”
and 13” X 4” w depending on the plane being used. IT IS VERY
IMPORTANT TO BALANCE THE PROP AND SPINNER AS ANY
IMBALANCE AT HIGH SPEED WILL DAMAGE THE ENGINE.
BREAK-IN INFORMATION
We recommend using Pro Synth 2000 with 10% nitromethane. It is not
necessary to give the engine a prolonged break-in. The break-in
procedure should take place on the model. It is usually most
convenient to mount it in the model so that the radio control unit can
be used to control the throttle.
Remember: never place the engine in a
vice!!
BREAK IN
Note: All adjustments during the break-in procedure will be made to
the needle valve only. See "Carburettor Illustration" in "Becoming
Acquainted with your West Eurotech 52 T2 Engine" to identify needle
valve. NOTE: Screw needle valve "in" for lean, "out" for rich.
1
Turn the needle valve clockwise until you feel resistance. This is
the fully closed position. Do not use excessive pressure when
closing the needle valve, as this may cause damage.
2
From the closed position, turn the high speed needle valve
counter clockwise about 1 3/4 turns. This is a good setting to
attempt to start your engine.
3
Prepare to start your engine.
a)
Use the radio control unit to open the throttle halfway.
b)
Making sure that battery is not connected, place your finger over
the Carburettor throat.
c)
Rotate the propeller counter clockwise 2-3 turns, until fuel flows
through the tubing up to the Carburettor.
d)
Remove your finger from Carburettor once you achieve fuel flow.
Close throttle till slightly open.
e)
Connect a 1.5V ignition battery to the glow plug.
4
Start your engine. Use an electric starter or a “Chicken Stick” to
flip the propeller through the compression stroke. The engine
should fire after a few flips
5
Carefully adjust the needle valve to attain the maximum RPM,
immediately turn the needle valve 1/4 turn counter clockwise
(rich), which will reduce RPM. This is the high-speed rich
condition and will be used during High Speed break-in.
6
With the engine still running, carefully remove the battery
connection from the glow plug.
7
For the next 15 minutes, or 6-8 ounces of fuel, break in the engine
by running engine at various ranges of RPM.
IDLE SETTING
You have now completed break-in. Now it is time to set the idle. Bring
RPM down to idle configuration. (See Carburettor Illustration in
"Becoming Acquainted with your West Eurotech 52 T2 engine" for
location of idle fuel adjustment screw)
Note: Try not to establish RPM below 2600, as low RPM this will
aggravate fuel problems due to low engine temperature.
1
Pinch fuel line to stop fuel from going to the engine, and hold until
significant change in engine performance occurs. See a, b and c
for proper action to take pending result.
a)
If RPM idles at 2600-2800, idle is set correctly. Allow idling for 3
minutes, then moving to step 2.
b)
If RPM increases considerably, mixture is too rich. Carefully lean
mixture, turning idle fuel adjustment screw in 30° increments.
Once you have made adjustment, try acceleration, and then lower
RPM. Begin step 1 again.
c)
If engine stops, will not idle, or will not accelerate, this indicates
mixture is too lean. Carefully enrich mixture, turning idle fuel
adjustment screw in 30° increments. Once you have made
adjustment, try acceleration, and then lower RPM. Begin Step 1
again.
2
Repeat the high-speed conditions, allowing the engine to run in
the high-speed conditions longer each time before reducing to
idle. Continue this procedure until the fuel tank is empty and the
engine stops. Allow the engine to cool and refill the fuel tank.
Congratulations! Your engine should now be completely broken in. By
following these tips, you now have an engine ready to go, and you've
also learned how to make many necessary carburettor adjustments.
Have a great day flying.
ENGINE CARE AND MAINTENANCE.
By caring for and maintaining your engine, your motor will deliver long
life and peak performance. Please observe the following:
1
Always keep the exterior of your engine clean to prevent it from
blackening. Use a clean cloth to remove the oil and dirt from the
outside of the engine after each use.
2
Foreign matter in the fuel can cause the carburettor jet to be
partially clogged. Take care to:
a)
Use clean fuel, do not leave fuel can open unnecessarily.
b)
Keep fuel tank clean. Rinse out the tank with methanol or fuel
before installing.
c)
Install an in-line filter in the fuel delivery tube between the fuel
tank and carburettor.
d)
Install a filter between the fuel pump and the fuel tank to keep
debris from entering tank.
e)
Check filters periodically and clean them when needed.
3
Do not leave raw fuel in the engine at the end of the flying
session; it may cause corrosion.
a)
Disconnect the delivery tube from the carburettor while engine
is still running, and allow engine to burn all remaining fuel.
b)
Drain remaining fuel from tank.
c)
Apply after run oil to the internal parts of the engine. The use of
after run oil can prevent corrosion and helps the engine from
becoming gummed up during extended storage. Model engine
fuels contain alcohol, which absorbs water from the air, causing
the corrosion to the engine parts.
4
Do not dismantle the engine unnecessarily. This may upset
correctly mated fittings such as the cylinder and piston, or the
connecting rod and crankshaft, causing a reduction in
performance and shortening the life span of the engine. If it is
necessary to clean the interior of the engine (such as after a
crash in a dirty- area), remove only the manifold, the carburettor
(do not disassemble), and the back plate. It is possible to clean
any foreign matter from the engine at this point. Further
disassembly will void the manufacturers' warranty.
SERVICE
We operate a same day repair service with no labour charge - you pay
only for parts. We guarantee no repair will ever cost more than 75% of
the price of a new motor. All units returned for warranty service must
be within the warranty terms explained on a sheet of paper included
with your engine. Do not return to the place of purchase as they are
not authorised or equipped to do warranty service on Weston
products. When requesting any service, please observe the following:
1
It is recommended that you do not dismantle this engine. Always
send the complete engine when service is required. Remove the
engine from the model. We will not accept equipment still
installed in the model.
2
Include a note detailing the problem, or the service you are
requesting. We will not accept any equipment without this
information.
3
If the product has been modified or serviced by anyone other
than the Weston Service Centre, the warranty is voided, and you
will be charged for any service.
4
You may request an estimate at the time you submit your
equipment for service. An omission of this request implies
permission for service at our discretion.
5
Include method of payment for any service charges, e.g. credit
card details, or cheque made out to Weston UK.
6
Send the unit by registered post to:
WESTON UK, 84-88, LONDON ROAD,
TEYNHAM, SITTINGBOURNE,
KENT. ME9 9QH, ENGLAND,
Tel: OO44 - 1795
–
521030