TM-9-2815-202-34 Technical Manual for 8V71T Engines for M109 Howitzer Download
Page 513 of 670
TM9-2815-202-34 (2) Remove two nuts (2), cap (3), and lower bearing shell (4) from piston and connecting rod assembly (5). NOTE Tag piston assembly with cylinder number for matching during reassembly. (3) Push piston and connecting rod assembly (5) out through top of cylinder block (6). NOTE Reassemble cap with stamped number on same side as connecting rod to assure cap is not rotated 180 degrees. (4) Reassemble bearing cap (3) and lower bearing shell (4) to piston and connecting rod assembly (5) using two nuts (2). b. Disassembly (1) Secure piston and connecting rod assembly (5) in a soft-jawed vise and remove piston rings (7) with piston ring pliers (8). Discard piston rings. CAUTiON (2) (3) (4) Do not damage piston or bushings during removal of piston pin retainers. Punch a hole through center of one piston pin retainer (9) with narrow chisel or punch and pry retainer from piston (10). Discard retainer. Withdraw piston pin (11 ) from piston (1 0) and remove connecting rod assembly (12). Drive remaining piston pin retainer (9) out from inside with a brass rod. Discard retainer. 6-31