Operation CHARM: Car repair manuals for everyone.

Oil Pump, Engine

Engine Liter/CID 3.1L/V6-189

All specifications given in inches.

Rotor Backlash 0.0090-0.0150
Rotor To Body Clearance 0.0010-0.0030
Rotor End Clearance [01] 0.001-0.004
Gear Pocket
Depth [05]
Diameter [06]
Rotor Diameter 1.498-1.500
Relief Valve To Body Clearance 0.0015-0.0035

[01] Measured between pump cover mating surface & end of rotors using straight edge & suitable feeler gauges.
[05] Iron body oil pump, 1.201-1.203 inch; aluminum body oil pump, 1.195-1.198 inch.
[06] Iron body oil pump, 1.502-1.504 inch; aluminum body oil pump, 1.503-1.506 inch.