Procedures

INSPECTION





1. Remove pressure relief valveOil Pressure Relief Valve - Removal.
2. Inspect pressure relief valve for scoring or damage. If scored or damaged, replace valve.
3. Inspect oil pump housing bore for damage or scoring, if found replace pump.
4. Remove oil pump drive sprocket using holder 9711 (2).
5. Remove oil pump housing retaining bolts.
6. Remove oil pump housing.





7. Measure outer rotor (2) to housing (3) clearance with feeler gauge (1).





8. Measure tip clearance between outer and inner rotor.





9. Measure pump cover flatness with a straight edge and feeler gauge.





10. Measure clearance over rotors with a straight edge and feeler gauge.





11. Measure outer rotor thickness.





12. Measure inner rotor thickness.

13. Inspect pump housing for scoring, replace as needed.





14. If pump passes inspections, install pump cover.
15. Install retaining bolts and Torque to 10 Nm. (88 in. lbs.).
16. Install pressure relief valveOil Pressure Relief Valve - Installation.




17. Install pump drive sprocket using holder 9711 (1) and tighten.