Forward Clutch Reassembly

Transmission. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35
U151F Automatic Transaxle. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35

  1. INSTALL INPUT SHAFT OIL SEAL RING

  2. INSTALL FORWARD CLUTCH PISTON SUB-ASSEMBLY

  3. INSTALL FORWARD CLUTCH RETURN SPRING SUB-ASSEMBLY

  4. INSTALL FORWARD MULTIPLE DISC CLUTCH DISC

  5. INSPECT PACK CLEARANCE OF FORWARD CLUTCH

  6. INSPECT FORWARD MULTIPLE DISC CLUTCH DISC

Forward Clutch -- Reassembly



1. INSTALL INPUT SHAFT OIL SEAL RING


    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.U151F Automatic Transaxle.Automatic Transaxle System.Forward Clutch  Reassembly
  1. Compress a new input shaft oil seal ring from both sides to reduce dimension A.

    Dimension A:
    5.0 mm (0.197 in.)
  1. Coat the oil seal ring with ATF and install it to the forward clutch drum.

    NOTICE:
    Do not expand the end gap of the oil seal ring excessively. Securely engage the hooks.


2. INSTALL FORWARD CLUTCH PISTON SUB-ASSEMBLY


    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.U151F Automatic Transaxle.Automatic Transaxle System.Forward Clutch  Reassembly
  1. Coat the forward clutch piston with ATF, and install it to the forward clutch drum.

    NOTICE:
    Be careful not to damage the lip of the forward clutch piston.


3. INSTALL FORWARD CLUTCH RETURN SPRING SUB-ASSEMBLY


    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.U151F Automatic Transaxle.Automatic Transaxle System.Forward Clutch  Reassembly
  1. Install the return spring to the forward clutch drum.

    NOTICE:
    After installing the spring, check that all of the springs fit in the piston correctly.
  1. Coat the clutch balancer with ATF.



    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.U151F Automatic Transaxle.Automatic Transaxle System.Forward Clutch  Reassembly
  1. Install the clutch balancer to the forward clutch drum.

    NOTICE:
    1. Be careful not to damage the lip of the forward clutch balancer.
    2. Make sure that the clutch balancer is not pinched and that there are no other defects on the lip.
    3. Apply sufficient ATF to the sealing lip before installation.


    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.U151F Automatic Transaxle.Automatic Transaxle System.Forward Clutch  Reassembly
  1. Place SST on the clutch balancer, and compress the clutch balancer with a press.

    SST
    09387-00020
  1. Install the snap ring with a snap ring expander.

  1. Make sure that the end gap of the snap ring is not aligned with the spring retainer claw.

    NOTICE:
    1. Stop the press when the spring seat is lowered to a position 1 to 2 mm (0.039 to 0.078 in.) from the snap ring groove. This prevents the spring seat from being deformed.
    2. Do not expand the snap ring excessively.


    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.U151F Automatic Transaxle.Automatic Transaxle System.Forward Clutch  Reassembly
  1. Set the end gap of the snap ring in the piston as shown in the illustration.

    NOTICE:
    The end gap of the snap ring should not align with any of the stoppers.


4. INSTALL FORWARD MULTIPLE DISC CLUTCH DISC
  1. Coat the 5 discs with ATF.



    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.U151F Automatic Transaxle.Automatic Transaxle System.Forward Clutch  Reassembly
  1. Install the 5 plates, 5 discs and flange to the forward clutch drum.

    NOTICE:
    Make sure that the plates, discs, and flange are installed as shown in the illustration.


    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.U151F Automatic Transaxle.Automatic Transaxle System.Forward Clutch  Reassembly
  1. Using a screwdriver, install the snap ring.

  1. Check that the end gap of the snap ring is not aligned with one of the cutouts.

    NOTICE:
    The snap ring should be fully engaged in the groove of the drum.


5. INSPECT PACK CLEARANCE OF FORWARD CLUTCH


    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.U151F Automatic Transaxle.Automatic Transaxle System.Forward Clutch  Reassembly
  1. Using a dial indicator, measure the forward clutch pack clearance while applying and releasing compressed air (392 kgf/cm2, 4.0 kPa, 57 psi).

    Pack clearance:
    1.00 to 1.25 mm (0.0394 to 0.4921 in.)
    If the pack clearance is less than the minimum, parts may be assembled incorrectly. Check and reassemble the parts again.
    If the clearance is not as specified, select another flange.
    HINT:
    There are 5 different thicknesses of flanges available.
    Standard flange thickness:
    No.
    Thickness
    No.
    Thickness
    1
    3.00 mm (0.1181 in.)
    4
    3.45 mm (0.1358 in.)
    2
    3.15 mm (0.1240 in.)
    5
    3.60 mm (0.1417 in.)
    3
    3.30 mm (0.1299 in.)
    -
    -


6. INSPECT FORWARD MULTIPLE DISC CLUTCH DISC


    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.U151F Automatic Transaxle.Automatic Transaxle System.Forward Clutch  Reassembly
  1. Check if the disc lightly rotates when rotating the forward clutch after inserting the multiple disc clutch into it.

    NOTICE:
    Do not place the forward clutch in a vise.