Oil Pump: Service and Repair

Oil Pump Overhaul

Oil Pump:

Oil Pump Removal
1. Remove the oil pan.





2. Remove and discard the oil pump chain tensioner.





3. Remove the oil pump.

Oil Pump Inspection
1. Remove the pump cover.





2. Check the inner-to-outer rotor radial clearance between the inner rotor (A) and outer rotor (B). If the inner-to-outer rotor radial clearance exceeds the service limit, replace the oil pump.





3. Check the housing-to-rotor axial clearance between the rotor (A) and pump housing (B). If the housing-to-rotor axial clearance exceeds the service limit, replace the oil pump.





4. Check the housing-to-outer rotor radial clearance between the outer rotor (A) and pump housing (B). If the housing-to-outer rotor radial clearance exceeds the service limit, replace the oil pump.
5. Inspect both rotors and the pump housing for scoring or other damage. Replace parts, if necessary.
6. Install the oil pump cover,

Oil Pump Installation





1. Install the oil pump.





2. Squeeze the new oil pump chain tensioner (A), then install the set clip (B) on it as shown.

NOTE: The set clip is supplied with the oil pump chain tensioner.





3. Install the oil pump chain tensioner.





4. Remove the set clip from the oil pump chain tensioner.
5. Install the oil pan.