TM 5-3805-262-342-4. ENGINE TROUBLESHOOTING (CONT)MALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTION9. EXCESSIVE OIL CONSUMPTION (Cont).Step 8. (Cont).a. Replace valve guide (page 4-12) if inside diameter is more than0.4065 inch at any point. Reinstall cylinder head and gasket(page 3-48) and rocker arm assembly and valve cover (page 3-71).b. If valve guides are okay, go to step 9 below.Step 9.Using micrometer, measure exhaust and intake valves stem diameter inplaces as shown.Exhaust valve stem diameter should be not less than 0.4008 inch andstem tip diameter should be not less than 0.4018 inch.Intake valve stem diameter should be not less than 0.4018 inch.Step 10.a. Replace a valve if measurements are not3-86).b. If measurements are as specified above,Remove oil pan (page 3-88).Notify general support maintenance to checkfor wear (page 4-51).as specified (pagego to step 10 below.connecting rod inserts2-34
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