Engine Oil Pump Overhaul
  1. Check the pump housing-to-outer rotor radial clearance between the outer rotor (A) and the pump housing (B). If the pump housing-to-outer rotor radial clearance exceeds the service limit, replace the oil pump assembly.

    Pump Housing-to-Outer Rotor Radial Clearance

    Standard (New):
    0.100−0.175 mm (0.0039−0.0069 in.)
    Service Limit:
    0.20 mm (0.008 in.)

  1. Inspect both rotors and the pump housing for scoring or other damage. Replace the parts, if necessary.
  1. Apply liquid thread lock to the pump housing screws, then install the oil pump cover.
  1. Check that the oil pump turns freely.