Tools Required

SA91101NE Feeler Gage Set

1. Inspect the body clearance:

1.1.	Using a SA91101NE or equivalent, measure the clearance between the driven rotor and the pump body.

Specification

•	The standard driven rotor to pump body side clearance is 0.150-0.277 mm (0.006-0.0011 in).

•	The service limit driven rotor to pump body side clearance is a maximum of 0.277 mm (0.011 in).

1.2.	If the clearance is greater than the service limit, replace the oil pump assembly.




2. Inspect the tip clearance:

2.1.	Using a SA91101NE or equivalent, measure the clearance between both rotor tips.

Specification
The service limit rotor tip clearance is a maximum of 0.150 mm (0.006 in).

2.2.	If the clearance is greater than the service limit, replace the oil pump assembly.




3. Inspect the end-to-end clearance:

3.1.	Using a SA91101NE , Plastigae®, or equivalent, measure the clearance between the side of the drive and the driven rotors and the oil pump cover plate.

Specification

•	The standard rotor to cover side clearance is 0.040-0.125 mm (0.0016-0.0049 in).

•	The service limit rotor to cover side clearance maximum is 0.08 mm (0.003 in).

3.2.	If the clearance is greater than the service limit, replace the oil pump assembly.