EXCESSIVE BLACK OR GRAY EXHAUST SMOKE FROM ENGINE

COOLING SYSTEM PRESSURE TEST - TM-9-2320-365-34-1_105

EXCESSIVE BLACK OR GRAY EXHAUST SMOKE FROM ENGINE - TM-9-2320-365-34-1_107

/.5tonv1-2/TM-9-2320-365-34-1 M1078 Series 2-1/2-Ton 4x4 Light Medium Tactical Vehicles (LMTV) Manual
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TM 9-2320-365-34-1 2-42 1. NO YES Air cleaner element serviced by emergency procedure. Air inlet system OK. Air cleaner element OK. START Improperly timed injectors will cause fuel to burn unevenly and produce black or gray exhaust smoke. Are injectors properly timed? YES NO 2. Is the fuel setting screw adjusted properly? Air cleaner element serviced by emergency procedure. Air inlet system OK. Air cleaner element OK. Fuel setting OK. Incorrect fuel setting. Improperly timed injectors. Incorrect valve clearance. Faulty fuel injector(s). Faulty governor. Improperly timed injectors. Incorrect valve clearance. Faulty fuel injector(s). Faulty governor. KNOWN INFO POSSIBLE PROBLEMS TEST OPTIONS REASON FOR QUESTION Improperly adjusted fuel setting screw will cause fuel injector racks to travel incorrectly and produce black or gray exhaust smoke. Adjust fuel setting screw (para 4-4). KNOWN INFO POSSIBLE PROBLEMS TEST OPTIONS REASON FOR QUESTION Adjust fuel timing (para 4-5). a9. EXCESSIVE BLACK OR GRAY EXHAUST SMOKE FROM ENGINE Refer to para 4-4. Refer to para 4-5. INITIAL SETUP Equipment Conditions Engine shut down (TM 9-2320-365-10). Cab raised (TM 9-2320-365-10). Tools and Special Tools Tool Kit, Genl Mech (Item 68, Appendix B) Tool Kit, Intl Comb Eng (TM 9-2320-365-20) Wrench, Torque, 0-60 N·m (Item 84, Appendix B) Personnel Required (2)

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