TM-9-2815-202-34 Technical Manual for 8V71T Engines for M109 Howitzer Download
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TM9-2815-202-34 4-29. CAMSHAFT AND GEAR ASSEMBLIES (9) (lo) (11) (12) Rotate each camshaft gear (17) until three bolts (18) are accessible. Remove three bolts (18) and three Iockwashers (19) from each rear camshaft end bearing (20). Discard Iockwashers. Remove two camshaft, bearing, and gear assemblies (21 ) from cylinder block. Remove three bolts (22) and three Iockwashers (23) from each front camshaft end bearing (24 and 25). Remove end bearings from cylinder block. Discard Iockwashers. Remove camshaft end bearing gasket (26) from left bank front positi~n~ Discard gasket. b. Disassembly NOTE ● Use gear puller if press is unavailable to remove gear. ● Disassemble left and riaht (1) (2) (3) (4) (5) camshafts by same pro~edure. Remove nut (8) from end of camshaft. Place camshaft, bearing, and gear assembly (21 ) in an arbor press. Insert short one-inch diameter brass rod (27) on end of camshaft. Press camshaft from gear. Remove woodruff key (28), two thrust washers (29), and rear end bearing (20) from end of camshaft (30). Remove six lock rings (31 ) from camshaft (30). Remove six intermediate bearing halves (32). Remove two screws (33) and two nuts (34) from rear camshaft gear (17). Remove balance weight (35) from gear. Remove two bolts (36) from water pump drive gear (7) (right camshaft only). Remove balance weight (37). REPLACEMENT (Cent) ~d FRONT OF ENGINE ARBOR PRESS — PI \ . . 4-106