TM-9-2320-361-24-1 Field Maintenance Manual Volume 1 for M44A2 Series Trucks
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TM 9-2320-361-24-1 0008 00 0008 00-2 MECHANICAL SYSTEMS TROUBLESHOOTING - DIRECT SUPPORT (Contd) MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 1. ENGINE WILL NOT CRANK (Contd) 5. Install fuel injector nozzle (WP 0067 00). 6. Check oil pump for seizure. Remove oil pump (WP 0036 00) and manually turn oil pump drive gear. 7. Check air intake manifold for presence of water. CAUTION Starting engine after correcting piston fluid-locked condition must be done with care. When pistons have been fluid-locked within cylinders, connecting rods may have been damaged and can be identified during test run by abnormal vibration or noise. Do not operate engine when these conditions exist. Permanent engine damage may result. 8. Remove water from air induction system, if present and perform an engine test run. 9. Check turbocharger housing for presence of water, identified by water on turbocharger fins or hubs. 10. Test run engine. 11. Remove intake manifold and gasket. Inspect for defects (WP 0041 00). 3. If engine crankshaft will not turn or turns hard, check internal components for seizure. Remove oil pan (WP 0035 00) and inspect crankshaft for nicks, burns, grooves, scuffs, or discoloration due to overheating. If nicked, burned, grooved, scuffed, or discolored replace engine (WP 0046 00). If drive gear will not turn, replace oil pump (WP 0036 00). If water is present within air cleaner, disassemble and drain air intake manifold (WP 0041 00). If engine operates with unusual sounds or vibration, refer to WP 0008 00, table 1, malfunction 16 or 17. If water is present, replace turbocharger (WP 0057 00). If engine operates with unusual sounds or vibration, refer to WP 0008 00, table 1, malfunction 16 or 17. If intake manifold is defective, replace (WP 0041 00). Table 1. Engine Troubleshooting Procedures (Contd).