Diesel Data: Automotive Repair

Oil Pump: Service and Repair



To remove oil pump pickup, refer to ``Oil Pan, Replace.''



Fig. 54 Oil pump assembly. 2000cc engines:






The oil pump is of the gear type. The oil pump is also used to drive the left counterbalance shaft. The oil pump drive gear has a sprocket driven by a timing belt. The counterbalance shaft is mounted to the oil pump driven gear and rotates in the opposite direction of crankshaft rotation.
1. Remove timing case as outlined under ``Timing Case, Replace'' procedure.
2. Remove oil pump gears and left counterbalance shaft from case.


Fig. 55 Oil pump gear timing marks. 2000cc engines:





3. Install oil pump gear in timing case, aligning timing marks.
4. Insert left counterbalance shaft into driven gear.
5. Install timing case.