TM-9-2815-220-24 Maintenance Manual for AVDS-1790-2CA AVDS-1790-DA and AVDS-1790-2DR Engines Download
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TM 9-2815-220-24 ENGINE ABNORMAL EXHAUST 0016 00 MALFUNCTION 1: (Continued) Excessive black smoke (one or both banks). PROBABLE CAUSE CORRECTIVE ACTION h. Fuel-injection pump timing incorrect. (1) Check timing of fuel injection pump (WP 0036, Injection Pump Timing). i. Fuel injection pump fuel adjustment improper (over fueled). (1) Replace fuel injection pump (WP 0115, Fuel Injection Pump Assembly Replacement). j. Fuel injection pump advance unit defective. (1) Replace advance unit (WP 0160, Fuel Injection Advance Control Repair). MALFUNCTION 2: Excessive bluish smoke during vehicle operation (one or both banks). PROBABLE CAUSE CORRECTIVE ACTION a. High oil consumption. (1) Refer to WP 0018, Engine Abnormal Oil Pressure. MALFUNCTION 3: White (grayish) smoke during low-idle operation (one or both banks). PROBABLE CAUSE CORRECTIVE ACTION a. Engine operating at idle for extended period during cold weather. (1) Increase engine idle speed to 1000 - 1200 rpm. MALFUNCTION 4: Oily and/or heavy carbon deposits on vehicle rear grille. PROBABLE CAUSE CORRECTIVE ACTION a. External oil leaks. (1) Refer to WP 0018, Engine Abnormal Oil Pressure. b. Excessive oil consumption. (1) Refer to WP 0018, Engine Abnormal Oil Pressure. c. Engine operating at idle for extended period during cold weather. (1) Increase engine idle speed to 1000 - 1200 rpm. END OF WORK PACKAGE WP 0016 00-3 (4 blank)