Oil Pump Inspection

1. Inspect body clearance:
a. Using a feeler gauge Service Tool SA 91101NE (or equivalent), measure the clearance between the driven rotor and pump body.
Body to Side Clearance:
Standard: 0.150 - 0.277 mm (0.006 - 0.011 inch)
Service Limit: 0.277 mm (0.011 inch) max.
b. If the clearance is greater than maximum, replace the oil pump rotor set.





2. Inspect tip clearance:
Using a feeler gauge Service Tool SA 91101NE (or equivalent), measure the clearance between both rotor tips.
Clearance:
Standard: 0.150 mm (0.006 inch) max.





3. Inspect end-to-end clearance:
Using a feeler gauge Service Tool SA 91101NE (or equivalent) or Plastigage (or equivalent) measure the clearance between the side of the gerotor assembly and the cover plate.
End-to-End Clearance:
Standard: 0.040 - 0.125 mm (0.0016 - 0.0049 inch)
Service Limit: 0.128 mm (0.005 inch) max.