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ARMY TM 9-2815-253-24 AIR FORCE TO 38G1-93-2 MARINE CORPS TM 2815-24/3 e. With an inlet manifold bolt inserted in center bearing locating tube (1), insert tube through crankcase wall and into center bearing housing (13). f. Remove bolt from tube. g. Install rear main bearing housing (3) and oil seal (6).  Refer to paragraph 3-32.2. h. Check that crankshaft (10) is free to rotate. i. Install key (9) on gear end of crankshaft. WARNING Use care to prevent serious bums when handling pinion gear (8). CAUTION Insufficient heat or delay In Installation could well cause pinion to become jammed on crankshaft, whereas overheating may cause softening of pinion. j. Heat crankshaft pinion gear (8) to a straw yellow color (460°F) (238°C) and install it on crankshaft ensuring that '0', mark is facing outward. k. Install pistons and connecting rods.  Refer to paragraph 3-30.4. I. Install camshaft.  Refer to paragraph 3-29.3. m. Install flywheel housing.  Refer to paragraph 3-31.2. n. Install gear end cover.  Refer to paragraph 3-28.3. 3-34.  CRANKCASE ASSEMBLY. 3-34.1.  Removal.  Remove crankshaft.  Refer to paragraph 3-33.1. 3-34.2.  Repair. a. If damaged, remove two capscrews (1, FIGURE 3-43) and copper washers (2). b. If damaged, remove two pivot supports (3). c. Using camshaft bushing tool (317-50106), remove camshaft bushing (4) as follows: (1) Install guide into bushing (4) from inside crankcase. (2) Install slide hammer onto guide threads. WARNING Care  must  be  taken  to  ensure  that  any  part  of  hand  is  not  likely  to  become  trapped  between  two parts of slide hammer while it is being used. (3) Use slide hammer to remove bushing (4). d. Using main bearing tool (317-50111), remove crankshaft main bearing (5) as follows: (1) Place bolt through plain dolly.  Refer to FIGURE 3-41. (2) Install bolt and dolly into bearing (5, FIGURE 3-43) from oil seal side (crankcase outside face). (3) Install bridge over bolt threads until two legs are against crankcase. (4) Install spacer onto bolt. (5) Use a suitable wrench to tighten nut until bearing shells are withdrawn. 3-72


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