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INSTALLATION 1. If the switch is not being replaced, replace and lubricate the o-ring. 2. Install the oil pressure switch and tighten to 18 N·m (159 in. lbs.) torque. 3. Connect oil pressure switch connector. 4. Connect the battery negative cables. 5. Start engine and check for oil leaks at the switch. PUMP - ENGINE OIL REMOVAL 1. Disconnect the battery negative cables. 2. Remove fan/drive assembly (Refer to 7 - COOL- ING/ENGINE/RADIATOR FAN - REMOVAL). 3. Remove the accessory drive belt (Refer to 7 - COOLING/ACCESSORY DRIVE/DRIVE BELTS - 4. Remove the fan support/hub assembly. 5. Remove crankshaft damper (Refer to 9 - ENGINE/ ENGINE BLOCK/VIBRATION DAMPER - REMOVAL) and speed indicator ring. 6. Remove power steering pump. 7. Remove accessory drive belt tensioner. 8. Remove the gear housing cover (Refer to 9 - ENGINE/VALVE TIMING/GEAR HOUSING COVER 9. Remove the four mounting bolts (2) and pull the oil pump (1) from the bore in the cylinder block. CLEANING Clean all parts in solvent and dry with compressed air. Clean the old sealer residue from the back of the gear INSPECTION Disassemble and inspect the oil pump as follows: 1. Visually inspect the lube pump gears for chips, cracks or excessive wear. 2. Remove the back plate (1). 3. Mark TOP on the gerotor planetary (3) using a felt tip pen. 4. Remove the gerotor planetary (3) inspect for excessive wear or damage. Inspect the pump 9 - 2626 ENGINE - 5.9L DIESEL - SERVICE INFORMATION DR/DH |