Oil Pump

Oil Pump Clearance





^ Measure the clearance with feeler gauge.
^ Clearance between oil pump outer rotor and oil pump body (Position 1)
Standard : 0.114 - 0.200 mm (0.0045 - 0.0079 inch)
^ Tip clearance between oil pump inner rotor and oil pump outer rotor (Position 2)
Standard : Below 0.180 mm (0.0071 inch)





^ Measure the clearance with feeler gauge and straightedge.
^ Side clearance between oil pump inner rotor and oil pump body (Position 3)
Standard : 0.030 - 0.070 mm (0.0012 - 0.0028 inch)
^ Side clearance between oil pump outer rotor and oil pump body (Position 4)
Standard : 0.030 - 0.090 mm (0.0012 - 0.0035 inch)
^ Calculate the clearance between oil pump inner rotor and oil pump body as follows:

OIL PUMP INNER ROTOR OUTER DIAMETER





^ Measure the outer diameter of protruded portion of oil pump inner rotor with micrometer. (Position 5)

OIL PUMP BODY INNER DIAMETER

7F�:

^ Measure the inner diameter of oil pump body with inside micrometer. (Position 6)

OIL PUMP INNER DIAMETER TO OIL PUMP BODY CLEARANCE
^ (Clearance) = (Oil pump body inner diameter) - (Oil pump inner rotor outer diameter)
Standard : 0.045 - 0.091 mm (0.0018 - 0.0036 inch)
^ If the measured/calculated values are out of the standard. replace oil pump assembly.

Regulator Valve Clearance








(Clearance) = Do (Valve hole diameter) - Do (Regulator valve outer diameter of valve)
Standard : 0.040 - 0.097 mm (0.0016- 0.0038 inch)
^ If the calculated value is out of the standard, replace oil pump assembly.

CAUTION:
^ Coat regulator valve with engine oil.
^ Make sure that it falls smoothly into regulator valve hole by its own weight.





OIL PUMP