TM-9-2815-202-34 Technical Manual for 8V71T Engines for M109 Howitzer Download
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TM 9-2815-202-34 4-40. FUEL INJECTOR ASSEMBLY REPAIR (Cont) e. Assembly (1) Secure injector body (21) infolding fixture(1). (2) install filter (5) in inlet port of body (located above injector rack). Position filter with dimple end down and slotted end up. No filter is required at outlet port. (3) Install two gaskets (4) and two fuel connectors (3) to injector body. Lubricate connector threads with engine oil before installation. Torque connectors to 70 Ib-ft (95 N-m) (blued components) or to 62 Ib-ft (84 N-m) (mixed and nonblued components). (4) Install two shipping caps (2) to connectors (3) to prevent dirt from entering injector. (5) Support injector body assembly, bottom end up, in holding fixture. (6) Install seal ring (25) onto shoulder of injector body (21 ). (7) Slide injector control rack (24) into injector body (21 ). (8) Look into injector body bore and move control rack (24) until you see two drill marks on rack. Hold rack in this position. (9) Place gear (23) in injector body so that marked tooth on gear is engaged between two marked teeth on control rack (24). (10) Place gear retainer (22) on top of gear (23). (11) Aline locating pin in bushing (20) with slot in injector body (21). Slide end of bushing into place. (12) Install spill deflector (19) over barrel of bushing (20). NOTE Perform needle valve opening pressure test [ref. step f.(5)] at this time before completing assembly. (13) Place check valve (18) centrally on top of bushing (20). (14) Place check valve cage (17), flat side up, over check valve (18) and against bushing (20). Check valve cage must not rest on check valve. (15) Insert spring seat (15) in valve spring (16). Install assembly on check valve cage (17) with seat up. 4-230 Change 1