Engine Oil Pump Overhaul

  1. Check the inner-to-outer rotor radial clearance between the inner rotor (A) and outer rotor (B). If the inner-to-outer rotor radial clearance exceeds the service limit, replace the oil pump.
    Inner Rotor-to-Outer Rotor Radial Clearance
    Standard (New):
    0.02−0.14 mm
    (0.0008−0.0055 in.)
    Service Limit:
    0.19 mm (0.0075 in.)