ARMY TM 9-6115-643-24AIR FORCE TO 35C2-3-445-22TABLE 3-1. DIRECT SUPPORT TROUBLESHOOTINGMALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTION1.Step 1.Step 2.Step 3.Step 4.Step 5.Check for defective fuel pump, refer to TM 9-2815-254-24.a.If fuel pump is not defective, do step 2.b.If defective, replace fuel feed pump in accordance with TM 9-2815-254-24.Test fuel injection pump timing, refer to TM 9-2815-254-24.a.If injection pump timing is correct, do step 3.b.If not correctly timed, time fuel injection pump in accordance with TM 9-2815-254-24.Test for defective governor activator, paragraph 4.14.1.a.If governor actuator is not defective, do step 4.b.If defective, replace governor activator, paragraph 4.14.3.Test for defective fuel injection pump, refer to TM 9-2815-254-24.a.If fuel injection pump is not defective, do step 5.b.If defective, repair or replace fuel injection pump in accordance with TM 9-2815-254-24.Test for defective governor control unit, paragraph 4.2.1.If defective, replace governor control unit, paragraph 4.2.3.ENGINERUNSERRATICALLYORSTALLSFREQUENTLY.Step 1.Step 2.Step 3.Step 4.Step 5.Test fuel injection pump timing, refer to TM 9-2815-254-24.a.If fuel injection pump timing is correct, do step 2.b.If not correctly timed, time fuel injection pump in accordance with TM 9-2815-254-24.Test for defective fuel injection pump, refer to TM 9-2815-254-24.a.If fuel injection pump is not defective, do step 3.b.If defective, repair or replace fuel injector pump in accordance with TM 9-2815-254-24.Check for valve adjustment, refer to TM 9-2815-254-24a.If valves are properly adjusted, do step 4.b.If improperly adjusted, adjust valves in accordance with TM 9-2815-254-24.Check cylinder head gasket for leaks, refer to TM 9-2815-254-24.a.If cylinder head gasket is not leaking, do step 5,b.If leaking, repair or replace cylinder head gasket in accordance with TM 9-2815-254-24.Check for stuck or burnt valves, refer to TM 9-2815-254-24.a.If valves are not stuck or burnt, do step 6.b.If stuck or burnt, replace valves in accordance with TM 9-2815-254-24.3-4
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