1-25
extended period without a successful start, wait at least 3 minutes
before attempting another start.
Air Induction and Alternate Air
45.
The engine receives filtered ram air through an intake and air box on the lower front
portion of the engine cowling. As the engine is fuel injected, and there is no carburettor, there is
no requirement for carburettor heat. There is an alternate air selector located to the left of the
throttle:
a.
should the primary air intake be blocked by snow, impact ice or other
contaminants, the alternate air control should be selected FULL ON by pulling it
all the way OUT. This will open the alternate air valve and draw unfiltered air from
inside the engine compartment; and
b.
at all other times, the alternate air should be OFF.
Figure 1-30 Alternate Air Control
CAUTION
Other than when required during the run-up, alternate air should not
be employed on the ground as the air entering the engine will be
unfiltered.
NOTE
When selecting alternate air ON, full throttle manifold pressure may
drop by approximately 1 inch.
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