TM-9-2815-202-34 Technical Manual for 8V71T Engines for M109 Howitzer Download
Page 494 of 670
TM 9-2815-202-34 6-4. EXHAUST MANIFOLD AND TUBE REPLACEMENT (Cont) NOTE Position beveled washers with crown facing nut. (2) install three beveled washers (21), two end retainers (22) and five locking nuts(20). NOTE Insure locating pads on exhaust manifold rest on cylinder block locating pads. (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13) (14) Install right exhaust manifold (6) onto cylinder head by sliding downward between gaskets and retainers. Repeat steps (1) thru (3) above for left exhaust manifold. Position gasket (19) over studs (17) on rear of left exhaust manifold (18). Install adaptor (7) on studs (17) and secure with three locking nuts (16). Torque nuts to 57-61 lb-ft (77-83 N-m), Attach bracket (9) to rear of flywheel housing with four bolts (13), four Iockwashers (14), and four flat washers (15). Torque bolts to 46-50 Ib-ft (62-68 N-m). Position exhaust housing (5) on top of bracket (9) and loosely secure with four bolts (11), four flat washers (12), and four locking nuts (8). Slide two clamps (2) on left exhaust tube (4). Affix one gasket (10) on end of adaptor (7) and one on end of exhaust housing (5). Install left exhaust tube (4) between adaptor (7) and housing (5) and secure with two clamps (2). Slide two clamps (2) on right exhaust tube (3). Affix one gasket (10) to housing (5) and one gasket on end of exhaust manifold (6). Install right exhaust tube (3) between housing (5) and exhaust manifold (6) and secure with two clamps (2). Torque ten nuts (20) to 30-35 Ib-ft (41-47 N-m) starting from center and working outward alternately toward either end. Torque four nuts (8) to 46-50 Ib-ft (62-68 N-m). END OF TASK FOLLOW-ON MAINTENANCE Para Description 6-3 Turbocharger installed 6-2 Turbocharger regulator installed 3-7 Liquid level gauge installed 6-12