Oil Pump: Inspection

Inspect components for damage. Measure rotor end play and the outer rotor-to-housing oil clearance. Measure the relief valve-to-housing oil clearance and relief valve tension. Replace the oil pump assembly if measurements are not within specifications. Refer to the OIL PUMP SPECIFICATIONS table.

NOTE: Oil pump is serviced as an assembly only. Replace assembly if measurements are not within specifications. See the OIL PUMP SPECIFICATIONS table.

OIL PUMP SPECIFICATIONS

Application

In. (mm)

Outer Rotor-To-Housing Clearance

.001-.013 (.03-.33)

Rotor End Play

.004 (.10) Max.

Shaft-To-Housing Clearance

.0015-.0030 (.038-.076)

Relief Valve Spring Tension

⁽¹⁾

Relief Valve-To-Bore Clearance

.0015-.0030 (.038-.076)

⁽¹⁾	Spring tension is 13.6-14.7 lbs. @ 1.39" (6.2-6.7 kg @ 35 mm).