TM-9-2815-202-34 Technical Manual for 8V71T Engines for M109 Howitzer Download
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TM9-2815-202-34 4-38. CYLINDER HEAD REPAIR (Cont) NOTE ● Injector rocker arm is different than exhaust valve rocker arms. Boss for rocker arm shaft on right and left hand exhaust valve rocker arms is longer on one side. Extended boss of each rocker arm must face toward injector rocker arm. ● If a new rocker arm is installed, also install a new push rod. ● Refer to Chapter 8 for push rod locknut adjustment during engine tune-up. (26) Thread each rocker arm (11) on its push rod (16) until end of push rod is flush with inner side of clevis yoke. NOTE Adjust valve bridges after cylinder head disassembly or extended engine operation. 4-210