TM-9-2815-202-34 Technical Manual for 8V71T Engines for M109 Howitzer Download
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TM 9-2815-202-34 5-37. CYLINDER HEAD REPAIR (Cont) a. Disassembly NOTE (1) (2) Immediately after removing fuel lines, cover each injector opening with cap to keep out dirt. Remove four inlet fuel lines (1) and four outlet fuel lines (2) from fuel injectors (3) and fuel connectors (4). Discard fuel lines. NOTE ● Tag rocker arms, shafts, brackets, valves, cam followers, and associated hardware so they can be installed in their original position. ● On models 7083-7396 and 7083-7391, one rocker arm shaft bracket on right cylinder head contains throttle delay housing (5). Remove eight bolts (6) securing rocker arm shafts (7) and brackets (8) to cylinder head. NOTE ■ On model 7083-7396, inspect throttle delay check valve for Ieakage. Fill throttle delay cylinder with fuel oil and watch check valve for leakage while moving engine throttle from idle to full fuel position. If more than a drop of leakage occurs, replace check valve. (3) Remove four rocker arm shafts (7) and eight rocker shaft brackets (8) from cylinder head. If necessary, remove check valve (9) used on model 7083-7396 and oil supply fitting (10) from throttle delay housing (5) used on models 7083-7396 and 7083-7391. 5-36 Change 1