TM 5-3805-290-23-1
FUEL SYSTEM TESTS, INSPECTIONS, AND ADJUSTMENTS - CONTINUED
0011 00
AIR INLET AND EXHAUST SYSTEM INSPECTION
0011 00
11
11
WARN I N G
Hot engine components can cause injury from burns. Before performing maintenance on engine, allow
engine and components to cool.
11
N OT E
General visual inspection should be made of air inlet and exhaust system. Make sure there are no signs of
leaks in system. There will be reduction in performance of engine if there is restriction in air inlet system or
exhaust system.
1.
Inspect engine air cleaner inlet and ducting to ensure passageway is not blocked or collapsed (WP 0032 00 and WP 0033
00).
2.
Inspect engine air cleaner element. Replace dirty engine air cleaner element with clean engine air cleaner element (WP
0032 00).
3.
Check for dirt tracks inside air piping on clean side of engine air cleaner element. If dirt tracks are found, contaminants
are flowing past engine air cleaner element and/or seal for engine air cleaner element. Replace air cleaner element (WP
0032 00).
4.
For engines with plastic valve mechanism covers, if excessive crankcase pressure has occurred, remove valve mecha-
nism cover (WP 0024 00), and check end of shroud for plastic skin. If found, remove plastic skin. Ensure all debris is
removed.
C AU T I O N
Attempting to clear obstruction by removing connection will damage valve mechanism cover.
5.
If breather tube is made of plastic, use low pressure air to check for blockage in breather tube. If blockage is inside con-
nector, replace crankcase vent cover assembly (WP 0024 00).
END OF WORK PACKAGE
0011 00-9/(0011 00-10 Blank)
