TM-9-2815-202-34 Technical Manual for 8V71T Engines for M109 Howitzer Download

TM 9-2815-202-34 4-27. CYLINDER HEAD ASSEMBLY REMOVAL/INSTALLATION This task covers: a. Removal b. Installation INITIAL SETUP MODELS ■ All TOOLS AND SPECIAL TOOLS General mechanics tool kit (App B Cylinder head lifting fixture (App B Guide studs (App B, Item 88) Torque wrench (App B, Item 101) Item 96) Item 19) MANDATORY REPLACEMENT PARTS 2 Seal rings (App F, Item 134) 8 Compression gaskets (App F, Item 83) 2 Seal rings (App F, Item 136) Seal rings (App F, Item 137) 12 Seal rings (App F, Item 138) EXPENDABLE/DURABLE SUPPLIES International compound no. 2 (App C, Item 24) EQUIPMENT CONDITION Para Description 4-2 Turbocharger oil line clips removed (7083-7395) 4-3 Exhaust manifolds removed (7083-7395) EQUIPMENT CONDITION (Cent) Para 4-6 4-8 4-10 4-11 4-15 4-17 4-18 4-26 5-3 5-4 5-6 5.1-4 5.1-6 5.1-8 5.1-11 6-4 6-11 Description Fuel lines removed (7083-7395 and 7083-7398) Thermostat housings removed (7083-7395 and 7083-7398) Air box heater removed (7083-7395 and 7083-7396) Rocker arm covers removed Block mounted breather disconnected (Except 7083-7398 and 7083-7399) Governor cover and throttle-control rods Fuel rod hoses detached Injector control tubes removed Exhaust manifolds removed (7083-7391 and 7083-7396) Fuel lines removed (7083-7396 and 7083-7399) Water manifolds removed (7083-7396 and 7083-7399) Fuel lines removed (7083-7391) Water manifolds removed (7083-7391) Glow plug harness removed (7083-7391) Air inlet by-pass valve hoses detached (7083-7391) Exhaust manifolds removed (7083-7398) Air box heater removed (7083-7398 and 7083-7399) Exhaust manifolds removed (7083-7399) 7-4 a. Removal (1) (2) (3) (4) Attach lifting bracket (1) to center three exhaust manifold studs (2) located at outboard side of cylinder head. Secure in place with three 7/1 6-20-inch nuts (3). Attach a chain to lifting bracket (1) and take up slack in chain. Remove two cylinder head bolts (4) at outboard corners of cylinder head and install guide studs (5). Remove remaining eight cylinder head bolts (4). Lift cylinder head assembly (6) from cylinder block. 4-98 Change 1