TM 9-2815-202-34
2-5.
MALFUNCTION, TEST OR INSPECTION, AND CORRECTIVE ACTION
PROCEDURES (Cont)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
10.
WHITE EXHAUST SMOKE
Step 1. Check for malfunctioning injectors.
a. Remove rocker arm covers.
WARNING
Protective fan screens must be Installed prior to doing
maintenance In the engine compartment when engine
is running or when engine is in ground hop mode.
Contact with rotating fan can cause injury (reference
FM 21-11).
b. Start engine.
NOTE
if injector is malfunctioning ,there will be no noticeable
difference in sound and operation of engine.
c. Hold fuel injector follower down with a screwdriver with engine idling to
prevent operation of injector. lf necessary, replace faulty injector (Refer to
Para 4-38).
d. Install rocker arm covers.
Step 2. Check for low cylinder compression (Refer to Para 8-14).
Step 3. Check for sticking exhaust valves.
a. Remove rocker arm cover and check for damaged or sticking exhaust valves.
b. Check for correct exhaust valve clearance (Refer to Para 8-4).
END OF TEST
2-14
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