TM 5-3805-262-344-1. ENGINE MAINTENANCE (CONT)d. CrankshaftandMainBearings(Cont).INSTALLATION (SHEET 1 OF 5)When handling heated parts, always wear heat resistant gloves to preventburning your hands. If you burn your hands, get medical assistance imme-diately.(1)Heat crankshaft gear (19) using gear and bearing heater.(2)Install key (20) and crankshaft gear (19) on crankshaft (18). Be surethat timing mark on gear is facing outward.Don’t press on center of bearing liners when installing them. Always usea sliding type movement. Failure to do so may cause damage to bearingliners.(3)(4)(5)(6)(7)Install seven main bearing liners(16 and 17) in cylinder block us-ing a sliding type movement. Lu-bricate liners using clean engineoil.Install crankshaft (18) in cylin-der block, alining timing markson crankshaft gear (19) andshaft gear.Install seven main bearing l(16 and 17) in bearing caps12, 13, and 14) using a slidcam-iners(9,ingtype movement. Make sure bearingliner lock lines up with bearingcap lock groove.Clean crankshaft (18) mainbearing journals and place apiece of plastigage on eachjournal..Install six main bearing caps(12 thru 14) in cylinder block.4-26
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