Oil Pump, Engine

Oil Pump Clearance





^ Measure clearance with a 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 clearance with a feeler gauge and a 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 (positions)
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:
- Measure the outer diameter of protruded portion of oil pump inner rotor with a micrometer (Position 5)





- Measure the inner diameter of oil pump body with an inside micrometer (Position 6)
^ (Clearance) = (Oil pump body inner diameter) - (Oil pump inner rotor outer diameter)
Standard 0.045 - 0.091 mm (0.0018 - 0.0036 inch)
^ If out of the standard, replace oil pump assembly.