Table 4-2. Organizational Troubleshooting - Continued
TEST OR INSPECTION
ENGINE - continued
4. ENGINE LACKS POWER.
Step 1. Check for restriction in engine exhaust.
Remove any restriction. Refer to para 4-47 for maintenance of exhaust manifold.
Step 2. Check fuel lines, hoses, and fittings for tightness of connections, pinching, and clogging.
Step 3. Inspect fuel transfer pump operation.
Step 4. Check fuel injection nozzles for clogging or sticking.
Step 5. Check speed control linkage adjustment.
Step 6. Check valve clearance.
Step 7. Any other cause.
Notify Direct Support or General Support Maintenance.
5. ENGINE KNOCKS, DEVELOPS EXCESSIVE NOISE, OR VIBRATES.
Step 1. Check engine for overload or operating at excessive speed.
Step 2. Check to see if engine is overheating.
Refer to para 4-45 for maintenance of cooling fan, water pump, and thermostat. See para 4-14
for drive belt adjustment, para 4-12 for radiator hose service, and para 4-29 for maintenance of
radiator and oil cooler group.
Step 3. Check fuel injection nozzles for clogging.