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ARMY TM 9-2815-257-24
AIR FORCE TO 38G1-128-2
MARINE CORPS TM 10155A/2815-24/3
4-6
Table 4-2. Direct Support Level Troubleshooting (continued)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
5.
ENGINE RUNS ROUGH
a. Check governor control for proper position of regulator spring (Para. 4-7).
Adjust governor lever (Para. 4-7).
b.
Check for proper thickness of fuel injection pump shim (Para. 4-11).
Adjust shim thickness / injection timing (Para. 4-11).
c.
Damaged or defective fuel injection pump.
Remove and replace fuel injection pump (Para. 4-11).
d. Refer trouble to general support maintenance level.
6.
ENGINE EMITS WHITE SMOKE
a.
Check injection timing (too slow) (Para. 4-11).
Adjust fuel injection pump timing by removing shims (Para. 4-11).
b.
Refer trouble to general support maintenance level.
7.
ENGINE EMITS BLACK SMOKE
a.
Check injection timing (too slow) (Para. 4-11).
Adjust fuel injection pump timing by removing shims (Para. 4-11).
b. Refer trouble to general support maintenance level.
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