GH F33 BDA
The damping of the mounting should be chosen as hard as possible, because engine could
sway/ swing itself with damped mounting which is too smooth. This leads to problems with
the fuel mixture (i.e. foam up of the fuel, uncontrolled centrifuge of the fuel pump diaphragm)
and so to an unsafe running of the engine.
-Recommendation for fixing:
Engine is mounted on a stabile fixing plate that is nearly doubled as the bottom side of the
engine (the bigger the better). At the two exterior of the fixing plate there will be fixed, in
axial way, four hard rubber damping elements (on each side two elements.
This complete base will be fixed by these rubber damping elements on an according ground
plate that is connected strong with the instrument.
1.2.2 Air supply of the engine
The engine has to be installed in that way, that the supplied fresh air is sufficient for cooling
and for the carburettor.
For an enclosed installation it has to be ensured that hot exhausted cooling air is not supplied
to carburettor, because this leads to drastic reduction of power.
Also it has to be ensured that hot exhausted cooling air could escape from case without
obstruction, because this leads automatically to an overheat of the engine and so to destruction
of itself.
Sufficient fresh air supply has to be attended.
1.2.3 Fuel supply of the engine
1.2.3-1
F 33 A
The fuel supply of the engine is supported by a diaphragm pump (Illus. 1.2.3-1), which
pushed through crank case low pressure.
Illustration 1.2.3-1
(Diaphragm Fuel pump)
This diaphragm pump is situated inside fuel line between the fuel tank and carburettor. A fuel
filter always should be mounted between the diaphragm pump and fuel tank.
The diaphragm pump is tied at crankcase.
Stand: 02.02.05
DOC_F33_B_E_0.01
