TM 9-2320-289-343-18.CRANKSHAFT, MAIN BEARINGS, AND FLYWHEEL INSTALLATION (Con’t).4.Install rear main seal. (See paragraph 3-34)CAUTIONEnsure that main bearing caps (2) are fully seated before installing bolts (3and 4). Failure to follow this caution may result in damage to main bearingcaps.5.Coat inner surface of lower main bearing (5) with lubricating oil and install in main bearing cap(2) as marked. Using soft-faced hammer, tap main bearing cap into place and install with 2inner bolts (4) and 2 outer bolts (3). Repeat this step for each main bearing cap that wasremoved.NOTEl Bearing cap #3 bolts should not be tightened to full specifications yet,l Inner bolts (4) are longer than outer bolts (3),6.Tighten inner bolts (4) and outer bolts (3) to 40 Ib. -ft. (54 N.m). Evenly tighten inner boltsagain to 110 Ib. -ft. (149 N.m). Evenly tighten outer bolts again to 100 Ib.-ft. (136 N.m).7.Tighten bearing cap #3 inner bolts (4) and outer bolts (3) to 10 Ib. -ft, (14 N.m). Usingsoft-faced hammer, tap end of crankshaft (6) rearward, then forward, to line up #3 mainbearing (5) with crankshaft thrust surface. Perform step 6 for bearing cap #3.8.Coat surface of connecting rodbearings with lubricating oil. Pushpistons down to engage connectingrods on connecting rod journals.Remove short pieces of 3/8 in. I.D.hose (7) from threads of connectingrod (1 O) bolts immediately beforeinstalling connecting rod caps (9).Install 8 connecting rod caps oncrankshaft (6) journals as markedwith 16 new nuts (8). Evenly tightennuts to 45-50 Ib.-ft. (61-68 N.m).TA506683 - 5 9
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business
