Removal
- Remove the oil pump assembly 1 with oil return pump.
Disassembly
- Remove the oil return pump outer rotor 1, inner rotor 2 and pin 3.
Inspection
- Rotate the oil pump by hand and check that it moves smoothly.
- If it does not move smoothly, replace the oil pump assembly.
Caution:
- Do not attempt to disassemble the oil pump assembly.
- The oil pump is available only as an assembly.
- Inspect the outer rotor 1 and inner rotor 2 for any scratches or other damage. If any damages are found, replace them with new ones.
Reassembly
- Apply engine oil to the sliding surfaces of the oil pump inner rotor, outer rotor and shaft.
- When installing the inner rotor 1, align the pin 2 with the groove 3.
- When installing the inner rotor and outer rotor, face the punched marks А on the rotors to the outside.
Installation
- Before mounting the oil pump, apply engine oil to the sliding surfaces of the outer rotor, inner rotor, and shaft.
- Tighten the oil pump mounting bolts.