Quantcast Table 5-2.  General Support Level Troubleshooting

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ARMY TM 9-2815-257-24 AIR FORCE TO 38G1-128-2 MARINE CORPS TM 10155A/2815-24/3 5-5 Table 5-2.  General Support Level Troubleshooting MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 1.      ENGINE WILL NOT START a.    Check for defective injection pump delivery valve (Para. 5-12). Remove and replace pump delivery valve (Para. 5-12). 2. ENGINE STARTS AND STOPS a.    Check for defective injection pump delivery valve (Para. 5-12). Remove and replace pump delivery valve (Para. 5-12). b.    Possible crankshaft bearing seizure.  Grasp flywheel and attempt to manually rotate engine in clockwise direction to check for seizure. Remove and replace crankshaft bearing (Para. 5-7). c.    Possible piston liner seizure.  Grasp flywheel and attempt to manually rotate engine in clockwise direction to check for seizure. Remove and replace piston components (Para. 5-10). 3. ENGINE OUTPUT DROPS a.    Check for defective injection pump delivery valve (Para. 5-12). Remove and replace pump delivery valve (Para. 5-12). b.    Check for carbon deposits in the combustion chamber (Para. 5-10). Clean carbon from combustion chamber (Para. 5-10). c.    Possible piston seizure or wear.  Inspect pistons (Para. 5-10). Remove and replace damaged or worn piston components (Para. 5-10). 4.    ENGINE RUNS ROUGH a. Check flywheel nut for proper tightness. Tighten flywheel nut to 86 to 94 ft-lbs (1200 to 1300 kg-cm).


 


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