nissan Workshop Repair Guides

Nissan and Datsun Workshop Service and Repair Manuals

Fluid Pump, A/T|Disassembly|Page 7964 > < Fluid Pump, A/T|Disassembly|Page 7962
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Fluid Pump: Service and Repair
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.

Fluid Pump, A/T|Disassembly|Page 7964 > < Fluid Pump, A/T|Disassembly|Page 7962