Oil Pump: Service and Repair

Oil Pump

Removal
1. Remove the crankshaft front seal.
2. Remove the bolts and the gerotor cover.
^ Remove and discard the O-ring seal.





3. NOTE: Mark the front of the inner and outer gerotors for correct reassembly.

Remove the inner and outer gerotors.





4. Inspect the oil pump components. Install new components, as necessary.
^ Inspect the oil pump for excessive metal particles.
^ Inspect the oil pump for gouges, cracks or deep scratches.
^ Inspect the oil pump inner and outer gear rotors for damage or excessive wear.

Installation

1. NOTE: Install the gears with marks pointing outward.

Lubricate the inner gear with lithium assembly grease and install onto the crankshaft. Lubricate the outer gear with lithium assembly grease and mesh with the inner gear rotor in the oil pump housing. Wipe off the excess assembly grease.





2. NOTE: Install a new O-ring seal.

Install the gerotor cover and bolts.
^ Tighten to 13 Nm (10 ft. lbs).




3. Install the crankshaft front seal.