Disassembly And Assembly

OIL PUMP

Disassembly and Assembly












CAUTION:
Before installation, apply new engine oil to the parts as shown.

DISASSEMBLY

1.Remove the oil pump cover.
2.Remove inner rotor and outer rotor from front cover.
3.After removing regulator plug, remove regulator spring and regulator valve.

INSPECTION AFTER DISASSEMBLY

Measure the clearance of the oil pump parts.





- Measure clearance with feeler gauge.
- Clearance between outer rotor and oil pump body (position 1).
Standard: Oil Pump.
- Tip clearance between inner rotor and outer rotor (position 2).
Standard: Oil Pump.





- Measure clearance with feeler gauge and straightedge.
- Side clearance between inner rotor and oil pump body (position 3).
Standard: Oil Pump.
- Side clearance between outer rotor and oil pump body (position 4).
Standard: Oil Pump.





- Calculate the clearance between inner rotor and oil pump body as follows:
1.Measure the outer diameter of protruded portion of inner rotor (Position 5).





2.Measure the inner diameter of oil pump body with inside micrometer (Position 6).
(Inner rotor to oil pump body clearance) = (Inner diameter of oil pump body) - (Outer diameter of inner rotor).
Standard: Oil Pump.





- Regulator valve to oil pump body clearance:
(Clearance) = D1(Valve hole diameter) - D2 (Outer diameter of valve)
Standard: Regulator Valve.

CAUTION:
Coat regulator valve with engine oil.
Check that it falls smoothly into the valve hole by its own weight.

ASSEMBLY






- Assembly is in the reverse order of disassembly.
- Install the inner rotor and outer rotor with the punched marks on the oil pump cover side.