TM-9-2815-202-34 Technical Manual for 8V71T Engines for M109 Howitzer Download
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TM9-2815-202-34 8-5. FUEL INJECTOR TIMING ADJUSTMENT This taskcovers: Adjustment INITIAL SETUP MODELS EQUIPMENT CONDITION All Para Description 4-11 Rocker arm covers removed TOOLS AND SPECIAL TOOLS General mechanics tool kit (App B, Item 96) Injector timing gage (App B, Item 46) injector timing gage (App B, Item 105)* * 7083-7391 Adjustment a. Place governor speed control lever (1) in NO-FUEL position. CAUTION Do not turn engine in counterclockwise direction as crankshaft bolt will be loosened. b. c. d. Rotate crankshaft clockwise, by turning crankshaft end bolt, until exhaust valves (2) are fully depressed on cylinder to be timed. NOTE Ail fuel injectors should be timed during one full revolution of crankshaft. Firing order: 1L, 3R, 3L, 4R, 4L, 2R, 2L, 1R. Place drop of oil from cylinder head on injector follower (3). Place small end (5) of fuel injector timing gage (4), 1.484 inches (for model 7083-7391 only, use 1.460 inches), in opening (6) in top of fuel injector body (7) with flat of timing gage on fuel injector follower (3). 8-8 Change 1