ARMY TM 9-2815-257-24 AIR FORCE TO 38G1-128-2 MARINE CORPS TM 10155A/2815-24/3 4-5 Table 4-2.  Direct Support Level Troubleshooting MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 1.      ENGINE WILL NOT START a. Check for proper thickness of fuel injection pump shim (Para. 4-11). Adjust shim thickness / injection timing (Para. 4-11). b. Damaged or defective fuel injection pump. Remove and replace fuel injection pump (Para. 4-11). c.    Refer trouble to general support maintenance level. 2. ENGINE STARTS AND STOPS a.    Check for damaged governor control component (Para. 4-7). Remove and replace damaged control component (Para. 4-7). b. Damaged or defective fuel injection pump. Remove and replace fuel injection pump (Para. 4-11). c.    Refer trouble to general support maintenance level. 3. ENGINE SPEED FLUCTUATES (RACES OR UNEVEN SPEED) a.    Check governor control for proper position of regulator spring (Para. 4-7). Adjust governor lever (Para. 4-7). b.    Damaged or defective governor control component (Para. 4-7). Remove and replace damaged control component (Para. 4-7). 4. ENGINE OUTPUT DROPS a. Damaged or defective fuel injection pump. Remove and replace fuel injection pump (Para. 4-11). b.    Refer trouble to general support maintenance level.