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Effectivity: 912 Series
Edition 1 / Rev. 1
d04638
page 91
May 01/2009
BRP-Powertrain
INSTALLATION MANUAL
15) Carburetor
See Fig. 58.
The carburetors on the standard engine are already attached by a flexible flange (and
connecting hoses on the airbox). Only connections of the Bowden cable for pre-
heating, choke and throttle have to be established.
It is recommended, to make the adjustment of the Bowden cable after engine
installation has been completed, to ensure exact final adjustment.
▲
WARNING:
The carburetor flange assembly has to carry the weight of the
carburetor and intake system. Ensure that the screw of the clamp is
positioned on the underside as supplied and the gap between the
clamp plates is 8 mm (.31 in).
15.1) Requirements on the carburetor
See Fig. 59.
The carburetors are positioned above the exhaust sockets. Below the carburetors
one each drip tray (1) with a draining connection (2) is fitted which serves as a
heat shield as well.
■
CAUTION:
The float chamber venting lines (3) lines have to be routed into
a ram-air and vacuum free zone or into the airbox, according
to the requirements and release of BRP-Powertrain. See
section 16. These lines must not be routed into the slipstream
or down the firewall.
Pressure differences between intake pressure and pressure in
the carburetor chambers may lead to engine malfunction due
to incorrect fuel supply.
▲
WARNING:
In the area of the float chamber the temperature limit of the fuel
must not be exceeded.
If necessary install additional insulation or heat shields. Certi-
fication to the latest requirements such as FAR or EASA has
to be conducted by the aircraft manufacturer.
Fig. 58
05794
(.31 in.)