ATF Pump, Disassembling and Assembling

ATF pump, disassembling and assembling, 01M, 4 Spd. A/T





Replacement ATF pump parts and the ATF pump are allocated according to the transmission code.

1 - Piston ring
^ Check that it is correctly located go to Fig. 1
^ Installing go to Fig. 2

2 - Piston ring
^ Check that it is correctly located go to Fig. 1
^ Installing go to Fig. 2

3 - Piston ring
^ Check that it is correctly located go to Fig. 1
^ Installing go to Fig. 2

4 - Thrust washer
5 - Piston
^ Sealing lips are vulcanized to piston
^ Moisten sealing lips with ATF before inserting
^ Turn piston slightly when installing

6 - Bolt
^ 10 Nm then turn 45° further

7 - Stator support
8 - Outer gear
^ Manufacturer's marking (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





Fig. 1 Checking that the piston rings are correctly located
- Ensure that ends of piston rings are hooked together.





Fig. 2 Installing and hooking ends of piston ring together
- Place piston ring in groove.
- Hook ends together by pressing sides of ring in and guiding ends over one another.

Note: Do not twist piston ring out of groove on one side.