TM-9-2815-200-35 Maintenance Manual for AVDS-1790-2M AVDS-1790-2A and AVDS-1790-2AM Engines Download

Table 6-19. Oil Pump Overhaul Standards - Continued Component Impellers and shafts - Cont’ d Oil pump drive gear and bearings Oil pump pressure relief valve Fig. No. B-9 B-9 B-9 B-9 B-9 B-9 B-9 B-9 B-9 B-9 B-9 B-9 B-9 B-9 B-9 Piston oil B-9 cooling valve Ref. letter HH H-HH KK JJ JJ P KK-P Q N-Q s R V T V-T U Point of measurement Sizes and fits of new parts Inside diameter of pieton sprayer pump im- pellers Fit of impellers on shaft Outside diameter of bearings Inside diameter of small gear end of drive gear Fit of bearing in drive gear Inside diameter of large gear end of drive gear Fit of bearing in drive gear Inside diameter of bearings Outside diameter of oil pump drive shaft Fit of bearings on shaft Spring helical compression (small) Approximate free length Load at 3.22 inch Maximum solid height Spring helical compression (large) Approximate free length Load at 3.22 inch Maximum solid height Outside diameter of valve stem Inside diameter of pressure relief valve body Fit of valve stem in valve body Spring, helical compression: Approximate free length Load at 1.38 inch Maximum solid height 0.9860 0.9865 0.0021L 0.0031L 2.0467 2.0472 2.0463 2.0470 0.0003L 0.0009T 2.0463 2.0470 0.0003L 0.0009T 0.9839 0.9843 0.9835 0.9840 0.0008L 0.0001T 4.27 inch 95 lb to 105 1b 2.94 inch 4.96 inch 141.5 lb to 156.5 lb 2.90 inch 0.3110 0.3115 0.3140 0.3160 0.0025L 0.0050L 2.69 inch Wear limits 0.9870 0.0041L * 2.0473 0.0006L 2.0473 0.0006L * 0.9833 O.OO1OL 0.3105 0.3170 0.0065L 63.4 lb to 75.4 lb 1.31 inch Note. Refer to paragraph 6-3b for explanation of symbols.