TM 5-4310-354-14
Table 5-1. Direct Support and General Support Troubleshooting - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
ENGINE - continued
2. ENGINE CRANKS BUT IS HARD TO START OR FAILS TO START - continued.
Step 2.
Inspect for sticking or fouled fuel injection nozzles.
Repair or replace defective nozzles (para 7-6).
Step 3.
Check fuel injection pump timing.
Time the fuel injection pump. Repair or replace if defective (para 7-8).
Step 4.
Inspect for broken or worn piston rings and pistons.
Replace defective piston rings, pistons, or connecting rods (para 7-24).
Step 5.
Check engine timing.
Retime the engine (para 7-20).
3. ENGINE MISSES OR RUNS ERRATICALLY.
Step 1.
Check timing of fuel injection pump.
Retime the fuel pump (para 7-8). If injection pump is defective, repair or replace.
Step 2.
Check speed control linkage.
Tighten all control linkage connections and adjust, as necessary (para 4-74).
Step 3.
Check valve adjustment and for sticking valves and defective rocker arm components.
Adjust valves (para 4-50), repair or replace sticking valves and defective parts (para 7-12 and
Step 4.
Check for low compression (para 1-10b).
Replace worn piston rings and scored pistons (para 7-24).
Step 5.
Inspect for failure of main bearings, connecting rod bearings, or camshaft bearings.
Repair or replace, as necessary (para 7-26, 7-24, and 7-22).
4. ENGINE LACKS POWER.
Step 1.
Check valve clearance.
Adjust valves (para 4-50).
Change 2 5-3
