TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 1 Download
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TM 9-2320-387-24-l COMPRESSION / MECHANICAL KNOWN INFO t DIAGNOSTIC FLOWCHART - T OPTIONS STEIICE-R TEST 10 (Page 2490) NOTHING DOES THE ENGINE CRANK AT NORMAL SPEED? POSSIBLE PROBLEMS REASON FOR QUESTfON No cranking or slow cranking may indicate a seized or tight engine, weak baneties or a bad starter circuit. ENGINE FUEL SYSTEM INTAKE/EXHAUST BATTERY CIRCUIT STARTER CIRCUIT LUBRICATION I KNOWN INFO T OPTIONS BATTERY CIRCUIT OK STARTER CIRCUIT OK ENGINE NOT SEIZED DOES THE VEHICLE START ? FOLLOW NORMAL STARTING PROCEDURE. REASON FOR QUESTION If the engine starts, then most of the fuel system is ok and the intake/exhaust system is probably ok. POSSIBLE PROBLEMS FUEL SYSTEM ENGINE INTAKE/EXHAUST 4 3 IS THE ENGINE OIL PRESSURE 40-45 PSI (276-310 kPa) AT 2,000 RPM AND THE ENGINE WARM ? 1 KNOWN INFO iT OPTIONS 1. OIL PRESSURE GAUGE 2. STEIICE-R TEST 50 (Page 2495 1 BATTERY CIRCUIT OK STARTER CIRCUIT OK ENGINE NOT SEIZED AIR AND FUEL TO CYLINDERS REASON FOR QUESTION Without proper oil pressure, the engine won’t be lubricated property. POSSIBLE PROBLEMS LUBRICATION ENGINE FUEL SYSTEM INTAKE/EXHAUST