Oil Pump

Disassembly





1) Remove 6 bolts, oil pump cover (1), drive gear and driven gear in that order.
2) Remove oil pump cover O-ring.

Reassembly
Assemble each component by reversing removal procedure and noting the following points.
^ Before installing inner gear and outer gear to pump body, apply A/T fluid to them.
^ When installing pump cover, use care so that its splined part will not cause damage to oil seal and use specified torque to tighten it to pump body.





^ When installing O-ring and oil seal, apply enough A/T fluid to them and fit them securely in groove.
^ After installation, check that inner gear turns smoothly by making use of torque converter.
^ When installing seal ring, it should not be opened more than necessary.
^ Fit claws of seal ring securely.

Inspection (for A/T)





^ Check seal ring (2) and bushing (1) for wear and damage.





^ Check clearance between outer gear (1) and body.





^ Check tip clearance between inner gear (1) and outer gear.





^ Check side clearance between inner gear/outer gear and pump body.