3.23
ENGINE
3
Oil Pump Removal and Inspection
1. Remove the circlip holding the oil pump gear and remove
the gear.
2. Remove the 3 bolts holding the oil pump cover. Inspect the
inside of the cover for wear or scoring.
3. Remove the outer pump rotor assembly. Inspect for signs
of scoring or excess wear.
NOTE: Cross pins for the pump rotors are loose and
may become lost. Keep pins in a secure location.
4. Remove the inner pump chamber and pump rotor assembly.
Inspect these components for wear or scoring.
NOTE: Dowel pins for the inner pump body are
loose and may become lost. Keep pins in a secure
location.
5. Replace any component that is found to be damaged or
worn.
6. Installation: Reverse the procedures. Use assembly lube or
clean engine oil to coat the parts before assembly. Tighten
the cover bolts to 80–97 in. lbs.(9–11 Nm). Verify the pump
turns freely during and after torquing bolts.
Crankshaft Drive and Cam Gear Removal
1. Remove the crankshaft nut, washer and drive gear. Note
and white-mark the double spline on both gears and shaft
for ease of reassembly.
OIL PUMP CLEARANCE
Limits are same as Standard
Body Feed / Scavenge .006-.008” .15 - .21mm
Rotor Tip Feed / Scavenge Less than .006”
Less than
.15 mm
Rotor Side Feed .0007-.003” .02 - .08mm
Scavenge .002-.006” .05 - .16mm
Double Spline
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