Fluid Pump: Service and Repair

Replacement ATF pump parts and the ATF pump must comply with transmission code.
1. Piston ring
^ Check that it is correctly located refer to Fig. 1
^ Fitting refer to Fig. 2
2. Piston ring
^ Check that it is correctly located refer to Fig. 1
^ Fitting refer to Fig. 2
3. Piston ring
^ Check that it is correctly located refer to Fig. 1
^ Fitting refer to Fig. 2
4. Thrust washer
5. Piston
^ Seals are vulcanized to the piston
^ Moisten seals with ATF before inserting
^ Turn piston slightly when installing
6. Bolt
^ 10 Nm (89 inch lbs.)
^ Then turn 45° further
7. Stator support
8. Outer gear
^ Manufacturer's mark (arrow) faces stator support
^ If outer gear is incorrectly installed ATF pump may not operate freely in installed position
9. Inner gear
^ Larger groove faces stator support
10. Housing for ATF pump
11. O-ring
^ Always replace
12. Torque converter oil seal
^ Removing and installing. Refer to Torque Converter; Torque Converter Seal.





Fig. 1 Piston rings, checking correct location
- Ensure ends of piston rings are hooked together.





Fig. 2 Piston ring, installing/hooking ends together
- Place piston ring in groove.
- To hook ends together press sides of ring in and guide ends over one another.
- Do not twist piston ring out of groove or one side.