Inspection

INSPECTION






Oil Pump Cover, Rotor, Vanes, Control Piston, Side Seals, Cam Ring and Friction Ring
Check for wear or damage.






Side Clearances
Measure side clearances between end of oil pump housing and cam ring, rotor, vanes and control piston. Measure in at least four places along their circumferences. Maximum measured values should be within specified positions.

Oil Pump and Low One-way Clutch:

Before measurement, check that friction rings, O-ring, control piston side seals and cam ring spring are removed.





If not within standard clearance, replace oil pump assembly except oil pump cover assembly.


Seal Ring Clearance
Measure clearance between seal ring and ring groove.

Standard clearance:.....................0.10 - 0.25 mm (0.0039 - 0.0098 inch)
Wear limit:.........................0.25 mm (0.0098 inch)

If not within wear limit, replace oil pump cover assembly.