TM-9-2350-311-20-1 Maintenance Manual for Volume 1 M109 Hull Download
Page 553 of 1275
TM9-2350-311 -20-1 5-17 ENGINE RIGHT EXHAUST MANIFOLD AND CROSSOVER TUBE — CONTINUED a. Removal — Continued 1 2 3. 4 5 Remove two nuts (1) from two clamps (2) securing exhaust crossover tube (3) to right exhaust manifold (4) and left exhaust manifold (5). Slide clamps onto manifolds. Loosen five locking nuts (6), securing right exhaust manifold (4) to side of cylinder head. Remove exhaust crossover tube (3) from exhaust manifolds (4 and 5). Slide right exhaust manifold (4) upward and off cylinder head. Remove clamp (2) from manifold. NOTE Engine model 7083-7391 has five beveled washers and no end retainers. Remove five locking nuts (6), three beveled washers (7), and two end retainers (8) from studs (9) on right cylinder head. Discard locking nuts. Remove exhaust manifold gasket (1 O). Discard gasket. b. Installation Ensure engine and exhaust systems are cool enough to permit handling in order to prevent bums or injury. Engine exhaust manifold may slip or fall during installation. Assistance is required to prevent injury to personnel. NOTE Engine model 7083-7391 has an unidirectional exhaust manifold gasket that must be installed with the mark ‘TOP” facing outward and at the top. 1 Position new gasket (10) over exhaust manifold studs (9) on right cylinder head. NOTE Position beveled washers with crown facing nut. ❵❵ Engine model 7083-7391 has five beveled washers and no end retainers. 2 Install three beveled washers (7), two end retainers (8), and five new locking nuts (6) on right exhaust manifold studs (9). 5-32 WARNING