B2, B4 Brake and F3 One-Way Clutch Inspection

B2, B4 BRAKE AND F3 ONE-WAY CLUTCH INSPECTION





1. Using vernier calipers, measure the free length of the piston return spring.

B2 brake return spring free length:
Standard: 22.66 mm (0.89 in)

^ If it less than the specification, replace the piston return spring with a new one.





2. Inspect the lining of all drive plates. (132)
^ If the lining is flaking or has changed color, or if it is worn or the print mark is wearing away, replace it with a new drive plate.
^ When replacing, inspect the contact surfaces between the retaining plate, driven plate and drive plate.
^ If they are scratched or have changed color, replace with new parts.

Note: Before replacing with new drive plates, soak them at least 2 h in ATF.





3. Using vernier calipers, measure the free length of the piston return spring.

B4 brake return spring free length:
Standard: 13.84 mm (0.54 in)

^ If it less than the specification, replace the piston return spring with a new one.





4. Inspect the lining of all drive plates. (134)
^ If the lining is flaking or has changed color, or if it is worn or the print mark is wearing away, replace it with a new drive plate.
^ When replacing, inspect the contact surfaces between the retaining plate, driven plate and drive plate.
^ If they are scratched or have changed color, replace with new parts.

Note: Before replacing with new drive plates, soak them at least 2 h in ATF.





5. Verify that the inner race rotates when the F3 one-way clutch is secured and rotated clockwise, and that it does not rotate when the F3 one-way clutch is rotated counterclockwise.