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SECTION 7
NORMAL PROCEDURES
STARTING ENGINE
Weak intermittent firing followed by puffs of black smoke from the
exhaust stack indicates over priming or flooding. Excess fuel can be
cleared from the combustion chambers by the following procedure: set
parking brake and hold brakes, set the mixture control full lean (idle
cutoff) and the place throttle control to full open; then crank the engine
through several revolutions with the starter. Be prepared to immediately
reduce throttle control to idle once engine starts. Repeat the starting
procedure without any additional priming.
After starting, if the oil pressure gage does not begin to show pressure
within 30 seconds in the summertime and about twice that long in very
cold weather, stop the engine and investigate. Lack of oil pressure can
cause serious engine damage. After starting, avoid the use of
carburetor heat unless icing conditions prevail.
Additional details concerning cold weather starting and
operation
may
OPERATION paragraphs in this section.
After the completion of normal engine starting procedures, it is a good
practice to verify that the engine starter has disengaged. If the starter
contactor were to stick closed, causing the starter to remain engaged,
an excessively high charge indication (full scale at 1000 RPM) would
be evident on the ammeter. In this event, immediately shut down
engine and have electrical system inspected by qualified maintenance
personnel prior to next flight.
RECOMMENDED STARTER DUTY CYCLE
Operate the starter motor for 10 seconds followed by a 20 second cool
down period. This cycle can be repeated five additional times, followed
by a thirty minute cool down period before resuming cranking. After
cool down, operate the starter motor again, six cycles of 10 seconds
followed by 20 seconds of cool down. If the engine still does not start,
try to find the cause.
7-26
(Continued)
NOTE
be
found
under
U.S.
CESSNA
MODEL 162
GARMIN G300
COLD
WEATHER
162PHUS-01
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