TM 5-4310-387-14
Table 5-1. Direct Support Troubleshooting Procedures (Cont).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. ENGINE DOES NOT START (CONT)
Step 5. Check fuel injector pump
Adjust/time or replace a faulty pump (para. 5-28).
2. ENGINE RUNS UNEVENLY: LOW OUTPUT.
Step 1. Inspect injection pump for excessive wear, also test for correct timing.
Replace worn pump or adjust timing as necessary (para. 5-28).
Step 2. Check fuel injector.
Replace a faulty fuel injector (para. 5-27).
Step 3. Check speed control assembly.
Replace damaged speed control assembly (para. 5-30).
3. ENGINE RACES.
Inspect speed control assembly.
Replace damaged speed control assembly (para. 5-30).
4. ENGINE EXHAUST EMITS EXCESSIVE BLUE SMOKE.
Step 1. Inspect for worn valves and valve guides.
Replace worn valves and guides (para. 5-29).
Step 2. Inspect cylinder.
Replace a damaged or worn cylinder (para. 5-33).
5-3
