Disassembling the oil pump
1 – pressure reducing valve; 2 – spring; 3 – lid; 4 – body; 5 – roller
1. Secure the oil pump carefully in a vice to avoid damaging the housing.
2. Loosen the bolts and remove the inlet pipe together with the oil pressure reducing valve.
3. Remove cover 3 of the pump housing and remove the pump shaft with the drive gear and the driven gear from the housing.
4. To assemble, carefully secure the pump in a vice and perform the following operations in order:
– install the drive gear with the shaft into the pump housing, and place the driven gear on the axle in the housing;
– install the pump cover, the pressure reducing valve with the spring and attach the inlet pipe to the pump body.
Attention! After assembling the pump, when turning the drive shaft by hand, the gears should rotate smoothly and without jamming.