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 00-13 MECHANICAL SYSTEMS TROUBLESHOOTING - DIRECT SUPPORT (Contd) MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 17. ENGINE VIBRATION ABNORMAL 1. Inspect vibration damper for loose or vibrating components (WP 0028 00). 2. Check for crossed fuel injector lines (WP 0068 00). NOTE If, after correctly installing crossed fuel injector lines, the engine continues to vibrate excessively, pistons may be burned within engine combustion chambers. This condition cannot be corrected unless affected piston(s) are replaced. 3. Check engine cylinders compression readings (WP 0008 00, table 1, malfunction 11, test 1). 1. If vibration damper is loose, check woodruff, key and crankshaft/vibration damper mating surfaces for damage. Replace damaged components (WP 0028 00). 2. If vibration damper is defective, replace (WP 0028 00). If fuel injector lines are crossed, remove lines and install in correct locations (WP 0068 00). If one or more cylinders has an 8-10% or greater compression loss, replace engine (WP 0046 00). Table 1. Engine Troubleshooting Procedures (Contd).