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.

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

Inspect both rotors and the pump housing for scoring or other damage. Replace the parts, if necessary.

Check that the oil pump turns freely.