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ARMY TM 9-2815-253-24 AIR FORCE TO 38G1-93-2 MARINE CORPS TM 2815-24/3 e. If damaged, remove pipe plugs (6, 7, and 8) and expansion plugs (9, 10, and 11). f. If removed, install pipe plugs (6, 7, and 8) and expansion plugs (9, 10, and 11). g. Using main bearing tool (317-50111), install crankshaft main bearing (5) as follows: (1) Place large tapered collar on a bench with pilot pin facing up.  Refer to FIGURE 3-41. (2) Place new bearing shells (5, FIGURE 3-43) into collar ensuring that one oil feed hole is in line with pilot pin and end of shell is in line with mark on collar face. (3) Place driver onto collar with cutout on driver located over collar pilot pin. (4) Push driver sufficiently until bearings come out other side of collar to provide a lead in. (5) Install assembly into crankcase from gear end with pilot pin in line with the oil feed hole in crankcase. (6) Place bolt through assembly. (7) Install bridge, spacer, and nut onto bolt. (8) Tighten nut until driver is against face of collar. (9) Remove tool. (10) Check that oil hole in bearing shell (5) is correctly aligned with oil feed hole in crankcase. h. Using camshaft bushing tool (317-50106), install camshaft bushing (4) as follows: NOTE When bushing (4) is replaced split in it must be positioned at top of bushing bore. (1) Install new bushing (4) over guide threads. (2) Screw on depth plate. (3) Install slide hammer onto guide threads. (4) Place assembly squarely into crankcase bushing bore from outside of crankcase. (5) Use slide hammer to install bushing. i. If necessary, install two pivot supports (3). j. If necessary, install two capscrews (1) and copper washers (2). 3-74


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