Inspection

OIL PUMP


Inspection


INSPECTION AFTER DISASSEMBLY

Oil Pump Clearance
- Measure the clearance with feeler gauge (C).





- Clearance between oil pump outer rotor and oil pump body [position (B)]

Standard : Refer to Oil Pump.

- Tip clearance between oil pump inner rotor and oil pump outer rotor [position (A)]

Standard : Refer to Oil Pump.






- Measure the clearance with feeler gauge and straightedge (A).
- Side clearance between oil pump inner rotor and oil pump body
[position (C)]

Standard : Refer to Oil Pump.

- Side clearance between oil pump outer rotor and oil pump body
[position (B)]

Standard : Refer to Oil Pump.

- Calculate the clearance between oil pump inner rotor and oil pump body as follows:

OIL PUMP BODY INNER DIAMETER
- Measure the inner diameter of oil pump body with inside micrometer. [position (A)]






OIL PUMP INNER ROTOR OUTER DIAMETER
- Measure the outer diameter of protruded portion of oil pump inner rotor (1) with micrometer. [position (B)]

OIL PUMP INNER ROTOR TO OIL PUMP BODY CLEARANCE
- (Clearance) = (Oil pump body inner diameter) � (Oil pump inner rotor outer diameter)

Standard : Refer to Oil Pump.

- If measured/calculated values are out of the standard, replace oil pump assembly.

Regulator Valve Clearance
(Clearance) = (Regulator valve hole diameter) � (Regulator valve outer diameter)






1 : Regulator valve
2 : Oil pump body


Standard : Refer to Regulator Valve.

- If the calculated value is out of the standard, replace oil pump assembly.

CAUTION:





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