TM 5-4310-387-14
Table 5-1. Direct Support Troubleshooting Procedures (Cont).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
5. ENGINE RUNS HOT.
Step 1. Inspect fuel injector for defects.
Replace defective fuel injector (para. 5-27).
Step 2. Test injection pump for erratic feed rate.
Adjust/time or repair pump (para. 5-28).
6. EXCESSIVE OIL CONSUMPTION.
Step 1. Inspect cylinder walls for a scratched or scuffed condition.
Replace a worn or damaged cylinder (para. 5-33).
Step 2. Check cylinder head valve guides.
Replace or repair damaged cylinder head (para. 5-29).
7. UNUSUAL ENGINE KNOCKS AND NOISES.
Step 1. Inspect pulley for loose mounting hardware.
Tighten loose hardware (para. 5-26).
Step 2. Inspect flywheel for loose mounting bolts.
Tighten mounting bolts (para. 5-35).
Step 3. Inspect injection pump for incorrect timing.
Adjust/time injection pump (para. 5-28).
8. COMPRESSOR NOISY.
Step 1. Inspect for loose fanwheel.
Tighten fanwheel (para. 5-11).
Step 2. Check oil pump.
Replace damaged oil pump (para. 5-21).
5-4
