TM 9--2815--247--34 0082 00--6 OIL PUMP ASSEMBLY REPAIR -- CONTINUED 0082 00 Inspection -- Continued 3.   Measure inside diameter (50) of bearing sleeve in cover assembly (28). Replace oil pump assembly if not within the following limits. 4.   Measure inside diameter (51) of impeller (30). Replace oil pump if not within the following limits. 5.   Measure the length (52) of impeller (30). Replace oil pump if not within the following limits. 6.   Measure outside diameter (53) of impeller (30). Replace oil pump if not within the following limits. 7.   Measure the length (54) of impeller (31). Replace oil pump if not within the following limits. 8.   Measure outside diameter (55) of impeller (31). Replace oil pump if not within the following limits. REF NO. POINT OF MEASUREMENT SIZES AND FITS OF NEW PARTS inches (mm) WEAR LIMITS 50 Inside diameter of bearing sleeve 0.9850 (25.0190) 0.9860 (25.0444) 0.9870 (25.0698) 51 Inside diameter of driven impellers 0.9860 (25.0444) 0.9865 (25.0571) 0.9870 (25.0698) 53 Outside diameter of driven impellers 2.4774 (62.9259) 2.4778 (62.9361) 2.4770 (62.9158) 54 52 Length of impellers 0.8000 (20.3200) 0.8010 (20.3454) 0.7990 (20.2946) 55 Outside diameter of drive impellers 2.4794 (62.9767) 2.4798 (62.9869) 2.4790 (62.9666) Figure 19 28 50 31 54 55 53 51 52 30