CHAPTER 72
PAGE 4
PAGE DATE: 1. March 2011
MAINTENANCE MANUAL EXTRA 330LX
Trouble Possible Cause Remedy
Engine will not start or is Defective battery Replace with a charged
hard to start battery per Ch. 24.
Rough idle Cracked engine mounts or Replace per Ch. 71.
defective shock mounts
Engine shock mount Install per Ch. 71.
improperly installed
Poor idle cutoff Improper rigging of mixture Adjust per Ch. 73.
control linkage
Engine will not turn static Restriction in induction air Inspect and remove
rpm or will not develop system restriction.
rated rpm.
Propeller is out of Adjust per Ch. 61.
adjustment (not reaching
specified low pitch).
Propeller governor is not Adjust per MT-Propeller
adjusted properly. Document E-1048.
Muffler’s internal baffles Strike muffler with a rubber
are broken and blocking the mallet or soft object and
exhaust outlet. Note: listen for a rattle. A rattle
Broken baffles are free to indicates loose baffles. Re-
move around in the muffler. move muffler for thorough
The engine may turn static inspection. Replace as
rpm’s intermittently. necessary per Ch. 78.
Throttle lever not properly Adjust per Ch. 73.
adjusted.
Engine surges Faulty governor Inspect and replace as
necessary per
MT-Propeller
Document E-1048.
Breather line plugged Inspect and remove any
obstructions from breather.
High oil temperature Insufficient cooling air Verify the integrity of the
air inlet and outlet ducting
to the oil cooler. Repair or
replace parts per Ch. 71.
Oil cooler lines are plugged Remove oil cooler lines
or partially plugged. and flush out per Ch. 79.
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