ARMY TM 9-2815-252-24
AIR FORCE TO 38G1-92-2
TABLE 3-2. Troubleshooting Malfunction Test or Inspection
Test or Inspection
Step 2. Check for clogged fuel filter.
Refer to paragraph 3-16. for inspection. If not clogged, do step 3.
Step 3. Check for defective governor system.
Adjust governor system, refer to paragraph 3-23.5. If properly adjusted, do step 4.
Step 4. Check for low coolant temperature.
a. If coolant temperature not low, do step 5.
b. Replace defective thermostat, refer to paragraph 3-9.
Step 5. Check for fuel injector nozzles dirty, defective or leaking.
a. Remove and test fuel injectors, refer to paragraph 3-17. If not defective, do step 6.
b. Replace fuel injector nozzle(s), refer to paragraph 3-17.
Step 6. Check for defective fuel injection pumps.
a. Test fuel injection pumps, refer to paragraph 3-13.3. If not defective, do step 7.
b. Replace fuel injection pump(s), refer to paragraph 3-13.
Step 7. Check for improper fuel pump timing.
Adjust fuel pump timing, refer to paragraph 3-14. If adjusted properly, do step 8.
Step 8. Weak or broken valve springs.
a. Remove and check valve springs, refer to paragraph 3-27.
b. Remove and check valve springs, refer to paragraph 3-27.
6. ENGINE DOES NOT DEVELOP FULL POWER.