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 TM 9-2815-220-24
ENGINE ABNORMAL EXHAUST
0016 00
MALFUNCTION 1: (Continued)
Excessive black smoke (one or both banks).
PROBABLE CAUSE
CORRECTIVE ACTION
h. Fuel-injection pump timing incorrect.
(1) Check timing of fuel injection pump
i. Fuel injection pump fuel adjustment
(1) Replace fuel injection pump (WP 0115,
improper (over fueled).
Fuel Injection Pump Assembly
Replacement).
j. Fuel injection pump advance unit defective.
(1) Replace advance unit (WP 0160, Fuel
Injection Advance Control Repair).
MALFUNCTION 2:
Excessive bluish smoke during vehicle operation (one or both banks).
PROBABLE CAUSE
CORRECTIVE ACTION
a. High oil consumption.
(1) Refer to WP 0018, Engine Abnormal Oil
Pressure.
MALFUNCTION 3:
White (grayish) smoke during low-idle operation (one or both banks).
PROBABLE CAUSE
CORRECTIVE ACTION
a. Engine operating at idle for extended period
(1) Increase engine idle speed to 1000 - 1200
during cold weather.
rpm.
MALFUNCTION 4:
Oily and/or heavy carbon deposits on vehicle rear grille.
PROBABLE CAUSE
CORRECTIVE ACTION
a. External oil leaks.
(1) Refer to WP 0018, Engine Abnormal Oil
Pressure.
b. Excessive oil consumption.
(1) Refer to WP 0018, Engine Abnormal Oil
Pressure.
c. Engine operating at idle for extended period
(1) Increase engine idle speed to 1000 - 1200
during cold weather.
rpm.
END OF WORK PACKAGE
WP 0016 00-3 (4 blank)
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