TM 5-3805-262-344-1. ENGINE MAINTENANCE (CONT)d. CrankshaftandMainBearings(Cont).INSTALLATION (SHEET 3 OF 5)(19) Position dial indicator on oil pumpdrive gear and check backlash be-tween pump gear and crankshaft gear(19). Backlash must be 0.006 to-0.011 inch. If backlash is less than0.006 inch or more than 0.011 inch,add or subtract shims (8) betweenoil pump and number 1 main bearingcap (9) to obtain correct backlash.NOTETo obtain an accurate reading in step(20) below,use a pry bar betweencrank throw and number 2 or 4 mainbearing cap.(20) Position dial indicatoragainst crankshaft gear(19) and check crankshaftend play. End play mustbe 0.003 to 0.015 inch.If end play exceeds 0.015inch, install oversizethrust washers (15) onboth sides of number 5main bearing cap.(21) Install pistons andconnecting rods (page4-50).(22) Install oil pump suctiontube (page 3-94).4-30
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