Drive Pinion: Adjustment
- Remove the liquid gasket from the mating surface completely.
- Using the ST (SOCKET (E20)), install the drive pinion retainer to converter case.NOTE: Do not confuse the three different-length bolts when installing.
Tightening torque:
43 N.m (4.4 kgf-m, 31.7 ft-lb)
- Rotate the drive pinion several times using ST1 and ST2.
Preparation tool:
ST1: HOLDER (18667AA010)
ST2: WRENCH (499787700)
- Adjust the hypoid gear set backlash. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Front Differential>ADJUSTMENT .
- Using the ST (SOCKET (E20)), remove the drive pinion retainer from converter case.
- Apply lead-free red dye evenly on the both sides of three to four teeth of the driven gear. Then install the drive pinion retainer and rotate the drive pinion in both directions several times. Remove the drive pinion retainer and check the tooth contact pattern.
If the teeth contact is inappropriate, readjust the backlash of hypoid gear set or the thickness of the drive pinion shim. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Front Differential>ADJUSTMENT .
NOTE: After correction, wipe off the lead-free red dye.- Correct tooth contact
Check item: Tooth contact surface is slightly shifted toward the toe side under a no-load condition. (When driving, it moves towards the heel side.)
- Face contact
Check item: Backlash is too large .
Contact pattern
Adjustment: Increase the thickness of the thrust washer according to the procedures for moving the drive pinion closer to the driven gear side.
- Flank contact
Check item: Backlash is too small .
Contact pattern
Adjustment: Reduce the thickness of the thrust washer according to the procedure for moving the drive pinion away from the driven gear.
- Toe contact (inside contact)
Check item: Teeth contact area is too small .
Contact pattern
Adjustment: Reduce the thickness of the thrust washer according to the procedure for moving the drive pinion away from the driven gear side.
- Heel contact (outside end contact)
Check item: Teeth contact area is too small .
Contact pattern
Adjustment: Increase the thickness of the thrust washer according to the procedures for moving the drive pinion closer to the driven gear.
- Correct tooth contact
- If tooth contact is correct, mark the differential side retainer position and loosen. After fitting a new O-ring and oil seal, screw in the differential side retainer to the marked position.CAUTION:
- Before installing O-rings and oil seals, apply sufficient amount of differential gear oil to avoid damage and deformation.
- Be careful not to incorrectly install or fail to install O-rings and other such parts.
- Tighten the lock plate with specified torque.
Tightening torque:
25 N.m (2.5 kgf-m, 18.4 ft-lb)