Oil Pump

OIL PUMP

DISASSEMBLY





1. Remove 6 bolts, oil pump cover, drive gear and driven gear in that order.
2. Remove oil pump cover 0-ring.

INSPECTION





Check seal ring and bushing for wear and damage.





Clearance between outer gear and body:
Standard 0.07 - 0.15 mm (0.0028 - 0.0059 inch)
Service limit 0.30 mm (0.0118 inch)





Tip clearance between inner gear and outer gear:
Standard 0.11 - 0.14 mm (0.0044 - 0.0055 inch)
Service limit 0.30 mm (0.01181 inch)

NOTE: Measure with torque converter installed.





Side clearance between inner gear/outer gear and pump body:
Standard 0.02 - 0.05 mm (0.0008 - 0.0019 inch)
Service limit 0.1 mm (0.0039 inch)

ASSEMBLY
Assemble each component by reversing removal procedure and noting 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.
Tightening Torque
(a): 7.5 Nm (0.75 kg-m, 5.5 ft. lbs.)
- 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.