Oil Pump Clearance Inspection

Oil Pump Clearance Inspection
1. Measure the radial clearance between the inner rotor (A) and the outer rotor (B) with a feeler gauge. If the clearance exceeds the service limit, replace the oil pump outer and inner rotors.





2. Measure the radial clearance between the outer rotor (B) and the transmission housing (C) with a feeler gauge. If the clearance exceeds the service limit, replace the oil pump outer and inner rotors.





3. Measure the axial clearance on the pump rotor. If the clearance exceeds the standard, select the appropriate rotor for the correct clearance from the chart as shown.