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 OIL PUMP REPAIR 0154 00 INSPECTION (Continued) 17. Visually inspect scavenge compartment cover assembly (33) for cracks or damage. Replace pump if cover is damaged. 18. Measure the inside diameter (A) of five impeller bores in scavenge housing assembly (25). Replace oil pump if not within specifications in the following table. 19. Measure depth (B) of two impeller bores in housing assembly (25). Replace oil pump if not within specifications in the following table. 20. Measure depth (C) of three impeller bores in housing assembly (25). Replace oil pump if not within specifications in the following table. 21. Measure inside diameter (D) of bushing (52) in housing assembly (25). Replace oil pump if not within specifications in the following table. Location Sizes and Fits of New Parts inches (mm) Wear Limits A 2.4850 (63.1190) 2.4862 (63.1494) 2.4875(63.1825) B 3.0480(77.4192) 3.0500 (77.4700) 3.0505(77.4827) C 0.2130 (5.4102) 0.2170 (5.5118) 0.2175(5.5245) D 0.9850(25.019) 0.9860 (25.0444) 0.9870 (25.0698) 25 52, D C A (5 places) B 33 WP 0154 00-12