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ARMY TM 9-2815-25624 AIR FORCE TO 38G1-96-2 MARINE CORPS TM 2815-24/5 3-34.7.  Installation. a. Perform procedures in paragraph 3-34.6. b. Place new cylinder head gasket (3, FIGURE 3-119) on cylinder block.  Do not use sealant; install dry. CAUTION Without  guide  studs,  viton  O-ring  seal  bonded  in  cylinder  head  gaskets  (at rocker   arm   lube   oil   passage)   could   become   damaged   if   cylinder   head requires repositioning on engine block to align capscrew holes. c. Install two guide studs in cylinder block (for piloting cylinder head) at locating holes 16 and 17 shown in FIGURE 3-124. FIGURE 3-124.  Cylinder Head Capscrew Tightening Sequence d. Using a lifting device, position cylinder head (2, FIGURE 3-119) over guide studs and lower into place on cylinder block. e. Dip entire capscrew (1) in clean engine lubricating oil (MIL-L-2104).  Remove excess oil from screw. f.  Remove guide studs.  Install twenty-six cylinder head capscrews (1). g. Tighten  capscrews  (1)  in  sequence  shown  in  FIGURE  3-124  to  torque  specified  below,  beginning  with  No.    1 capscrew.  Complete each step on all capscrews before proceeding to next step. (1)   Step 1 - Tighten all capscrews to 75 ft-lbs (100 Nm). (2)   Step 2 - Tighten all capscrews to 110 ft-lbs (150 Nm). (3)   Step 3 - Wait 5 minutes and verify 110 ft-lbs (150 Nm). h. After tightening capscrews (in proper sequence) to 110 ft-lbs (150 Nm), follow the steps below for each capscrew in same sequence as outlined in step g. (1)   Make a mark on socket and make a second mark 1/6 turn (60  10 degrees) counterclockwise from the first. (2)   Make a mark on cylinder head next to each capscrew. (3)   Place socket on capscrew so that first mark aligns with mark on cylinder head. (4)   Tighten (in sequence) all caps crews until second mark on socket aligns with mark on cylinder head. 3-157


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