TM-9-2320-280-20 HMMWV Technical Manual Unit Maintenance Volume 2 Download
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3-56. LEFT EXHAUST MANIFOLD REPLACEMENT (Cont’d) FOLLOW-ON TASKS: • Install 200 ampere alternator (para. 4-109 or 4-110). • Install 100 ampere alternator (para. 12-23 or 12-24). • Install 60 ampere alternator (para. 4-2). • Install oil dipstick tube (para. 3-2). • Install engine access cover (para. 10-15). TM 9-2320-280-20-2 Change 3 3-103 CAUTION Alternate screw and stud tightening. Flanges often break when each screw is tightened completely before others are snugged up. NOTE Ensure replacement gasket has a silver, shiny surface, not a dull, dark surface, which is characteristic of a gasket containing asbestos. 1. Install gasket (5) and exhaust manifold (4) on cylinder head (6) with seven washers (13), socket- head screws (12), washer (3), and stud (2). 2. Using hex-head driver, tighten seven socket-head screws (12) and stud (2) to 25-33 lb-ft (34-45 N . m). 3. Install alternator support bracket (1) on exhaust manifold (4) and stud (2) with washer (15) and locknut (14). Tighten locknut (14) to 31-39 lb-ft (42-53 N . m). 4. Install manifold seal (10) and crossover pipe (7) on exhaust manifold (4) with three washers (9), capscrews (11), washers (9), and locknuts (8). Tighten locknuts (8) to 37 lb-ft (50 N . m). b. Installation