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REMOVAL NOTE The oil pump can be removed with engine in frame and without 1. Drain oil from oil tank. NOTE See . Do not remove oil pump feed fitting (2) from the pump (1). Hold oil pump feed fitting and loosen large high 2. . Remove high pressure feed hose (4) from oil pump (1). 1 2 3 4 sm01486 1. Oil pump 2. Oil pump feed fitting 3. High pressure hose fitting nut 4. High pressure feed hose (to oil filter) Figure 3-166. Oil Pump Feed Hose NOTE See . The oil pump is designed to be removed as a complete assembly by removing the two long screws (2) at 3. . Carefully remove two screws (2) that secure oil pump to crankcase. Pump will drop with screws 4. Disconnect and tag the two remaining oil hoses from the DISASSEMBLY 1. See . Remove two Torx screws (3). Lift cover (1) off body (12). Remove and discard o-ring (11). 2. Slide both pieces of feed gerotor set (6), separator plate 3. Remove and discard retaining ring (9). Remove thrust CLEANING AND INSPECTION Compressed air can pierce the skin and flying debris from 1. Clean all parts in cleaning solvent. Blow out holes and oil 2. See . Inspect both gerotor sets for wear. a. Mesh pieces of each set together as shown. b. Use a feeler gauge to determine clearance. c. The SERVICE WEAR LIMIT between gerotors is d. Measure thickness of feed gerotors with a micrometer. 1 2 3 sm03409 1. Outer gerotor 2. Inner gerotor 3. Wear limit Figure 3-167. Gerotor Wear Limits ASSEMBLY NOTE Liberally coat all moving parts with clean engine oil to ensure 1. . Install gear shaft (14) through oil pump body (12). Position thrust washer (10) over end of shaft. 2. Insert inner gerotor of the scavenge gerotor set (8) over 3. Place outer gerotor over inner to complete scavenge set. 4. Position separator plate (7) into case and line up slots on 5. Place feed gerotor set (6) over gear shaft. 6. Install a new o-ring (11) into groove in oil pump cover (1). 2009 Sportster Service: Engine 3-131 |