Engine Oil Pump Overhaul

  1. Align the inner rotor tooth (A) with the mark (B) on the outer rotor, then check the inner-to-outer rotor radial clearance between the inner rotor and the outer rotor. 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):
    0.05−0.15 mm
    (0.0020−0.0059 in.)
    Service Limit:
    0.19 mm (0.0075 in.)