TM-9-2320-280-34
TRUCK, UTILITY: M998 SERIES
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE
JANUARY 1996
TM-9-2320-280-34 - Page 103 of 1258
TM 9-2320-280-34
3 - 19.
ENGINE INJECTION PUMP TIMING (Cont ’d)
b. Timing Adjustment
WARNING
Never adjust injection pump timing with engine running or injury
to personnel and damage to equipment may result.
1.
Loosen three nuts (7) securing injection pump (6) to timing chain cover (5).
NOTE
Moving injection pump .03 in.
(.8 mm) is equal to approximately 1 °
of injection pump timing.
2.
Move injection pump (6) clockwise to retard timing or counterclockwise to advance timing.
3.
Tighten three nuts (7) securing injection pump (6) to timing chain cover (5) and recheck timing
(para.
3-19a).
FOLLOW-ON TASKS:
•
Install companion seat and battery box cover (TM 9-2320-280-20).
•
Install engine access cover (TM 9-2320-280-20).
•
Lower and secure hood (TM 9-2320-280-10).
3-43
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