TM 5-3805-262-342-4. ENGINE TROUBLESHOOTING (CONT)MALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTION10. LOW ENGINE OIL PRESSURE (Cont).Step 10. (Cont).a. If clearance exceeds 0.005 inch, new main bearing liners must beinstalled (page 4-16).b. If clearance is 0.0016 to 0.005 inch, put clean OE/HDO 30 lubri-cating oil on threads and under heads of cap screws.Install main bearing cap and secure using two capscrews andwashers. Tighten to 195 to 215 lb-ft.Repeat step 10 above for remaining six main bearing caps. If allclearances are 0.0016 to 0.005 inch, camshaft bushings are worn.Replace camshaft bushings (page 4-54).11. DIAL INDICATOR HAND DOES NOT INDICATE 0.053 INCH WHEN PERFORMING VALVE TIMINGCHECK (PAGE 3-8)Step 1.Perform top dead center check (page 3-4).a. If mid-point between two lines scribed on crankshaft pulley doesnot aline with TDC (top dead center) mark on crankshaft pulley,replace crankshaft pulley (page 3-51).b. If mid-point between two lines scribed on crankshaft pulley doesaline with TDC (top dead center) mark on crankshaft pulley, goto step 2 below.Step 2. Check valve tappet clearance (page 3-6).a. If intake valve cold setting tappet clearance is not 0.015 inchor if exhaust valve cold setting tappet clearance is not 0.025inch, adjust (page 3-6). If intake valve hot setting tappetclearance is not 0.015 inch or if exhaust valve hot setting tap-pet clearance is not 0.020 inch, adjust (page 3-6).b. If valve tappet clearances are okay, go to step 3 below.Step 3. Remove valve covers (page 3-60).Remove rocker arm assemblies and push rods (page 3-62).Check push rods for bent condition by rollingface. Push rod should roll smoothly.a. If push rods are bent, replace and installb.If push rods are okay, go to step 4 below.over smooth flat sur-(page 3-71).2-41
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