Lubrication System/Oil Pump 6. Measure oil pump gear backlash. OIL PUMP GEAR SPECIFICATIONS Item New Part Wear Tolerance Backlash—B43E, B43G, B48G, 0.05—0.13 mm 0.23 mm T260 Engine (0.002—0.005 in.) (0.009 in.) M36419 -UN-29JAN90 Backlash—P218G, 0.025—0.203 mm 0.36 mm P220G Engine (0.001—0.008 in.) (0.014 in.) If backlash exceeds specification replace oil pump. M98,2040K,10 -19-02FEB87 CTM2 (19APR90) 40-5 16, 18, 20 & 24HP Onan Engines AllTractorManuals.com 130495 7. Remove two cap screws to remove oil pump assembly. If suction tube hits crankshaft lobe, install flywheel cap screw in crankshaft. Turn crankshaft until suction tube can be removed.
-UN-29JAN90 M36420 -UN-29JAN90 M36421 M98,2040K,11 -19-11OCT85 40 5