User manual Common FM120IL

Common instructions for engines FM ( Date of publication 06/2016)
FIALA PROP s.r.o, Vysoká 56, 75641 LEŠNÁ , Czech Republic , e-mail: [e-mail]
www.fialaprop.com
Page 1
Common instructions for motors FM
We currently have a production program engine capacity of 60, 70, 85, 120, 140, 170, 210,
420 and 800cc, all 4-stroke version. The engine purchased've got brief instructions for the
type of engine. The description of the maintenance and further advice is pretty much all
engines indiscriminately and pay attention to him. It can save you unnecessary worry, saving
wasted fin. Resources and protect the health of all concerned.
Engine built into the model is very individual, it is necessary to have some experience with
the installation of large petrol engines or get advice from more experienced colleagues in the
area. In mind it is necessary to have especially good motor mounts both sufficiently
dimensioned partition and custom motor mount to the bulkhead. High quality screws, thread
adhesive and self-locking nuts are commonplace. Do not consider only the weight and motor
power, but also calculate the vibrations.
Another important thing is the perfect uniform cooling of the entire motor if possible, but
mainly cylinders and heads. Yet do not only for cooling air, but also to the hot air of the
engine, which should be substantially flat larger than the inlet opening in order that a proper
air flow. It can be successfully used in different partitions - rectifier air inlet to the cooling air
flowing went really where we need. Remember to keep an adequate distance from exhaust
pipes and combustible materials to exhaust airflow around the exhaust holes and silencers.
Installation of a fuel system
The tank is best to place the center of gravity of the model, ensuring that the focus does not
shift to fuel decreases. Better tank is placed above the line of the carburetor. For the first
start (or in the case that each time hitting all the fuel) to make sure that the entire fuel hose
toward the carburetor is filled with fuel and without bubbles. In theory, no matter how the fuel
to the carburetor has a long way, but of course it is better when it is most direct and shortest.
Install the fuel line if possible so that you could, if necessary, to see if the fuel do not air
bubbles. Since the fuel tends to foam due to vibration of the tank, using a special suction tip
into the tank, which also act as weights and thus ensure continuous submersion the nozzles
of fuel at all times and locations of aircraft. Opinions on these terminations are different, they
are pilots who use these terminals, "felt sole" used to prevent foaming of fuel and air in the
fuel system, and still others argue that they can be loose thread and get into the carburetor.
Therefore, using only the suction end with weight and have no problems with fuel foaming.
In both cases - and 200% in the second - it is absolutely necessary to have fuel system
perfectly cleansed and purged, and then only draw the filtered fuel, preferably two stages.
I.e. pour fuel into the tank through a filter to the airport and then at the airport upon model
fuel still chase through the built-flow filter. Refueling nozzle to keep them closed by caps to
eliminate the possibility of contamination in the fuel and subsequent engine failure in the air.