Automatic Transaxle Unit Inspection

Transmission. Camry. Acv40 Gsv40
U250E Automatic Transaxle. Camry. Acv40 Gsv40

  1. INSPECT MULTIPLE DISC CLUTCH HUB

  2. INSPECT NO. 2 UNDERDRIVE CLUTCH DISC

  3. INSPECT OVERDRIVE DIRECT CLUTCH DRUM SUB-ASSEMBLY

  4. INSPECT 2ND BRAKE DISC

  5. INSPECT 1ST AND REVERSE BRAKE DISC

  6. INSPECT 1ST AND REVERSE BRAKE RETURN SPRING SUB-ASSEMBLY

  7. INSPECT UNDERDRIVE BRAKE RETURN SPRING SUB-ASSEMBLY

  8. INSPECT PACK CLEARANCE OF FIRST AND REVERSE BRAKE

  9. INSPECT PACK CLEARANCE OF SECOND BRAKE

  10. INSPECT PACK CLEARANCE OF NO. 2 UNDERDRIVE CLUTCH

  11. INSPECT UNDERDRIVE ONE-WAY CLUTCH ASSEMBLY

  12. INSPECT INPUT SHAFT END PLAY

  13. INSPECT DIRECT MULTIPLE DISC CLUTCH DISC

  14. INSPECT OVERDRIVE DIRECT CLUTCH DISC

  15. INSPECT OVERDRIVE CLUTCH RETURN SPRING SUB-ASSEMBLY

  16. INSPECT PACK CLEARANCE OF DIRECT CLUTCH

  17. INSPECT PACK CLEARANCE OF OVERDRIVE CLUTCH

  18. INSPECT PACK CLEARANCE OF DIRECT CLUTCH

  19. INSPECT PACK CLEARANCE OF OVERDRIVE CLUTCH

  20. INSPECT 2ND BRAKE PISTON RETURN SPRING SUB-ASSEMBLY

Automatic Transaxle Unit -- Inspection



1. INSPECT MULTIPLE DISC CLUTCH HUB


    Camry. Acv40 Gsv40.U250E Automatic Transaxle.Automatic Transaxle System.Automatic Transaxle Unit  Inspection
  1. Using a dial indicator, measure the inside diameter of the multiple disc clutch hub bushing.

    Standard inside diameter:
    23.025 to 23.046 mm (0.9065 to 0.9073 in.)
    Maximum inside diameter:
    23.09 mm (0.9091 in.)
    If the diameter is greather than the maximum, replace the multiple disc clutch hub with a new one.
    NOTICE:
    Check the contact surface of the bushing in the direct clutch shaft. If any scratch or discolor is identified, replace the direct clutch sub-assembly with a new one.


2. INSPECT NO. 2 UNDERDRIVE CLUTCH DISC


    Camry. Acv40 Gsv40
  1. Check if the sliding surfaces of the discs, plates and flange are worn or burnt.
    If necessary, replace them.

    NOTICE:
    1. If the linings of the discs are peeled off or discolored, or even if a part of the groove is damaged, replace all discs.
    2. Before assembling new discs, soak them in ATF for at least 15 minutes.


3. INSPECT OVERDRIVE DIRECT CLUTCH DRUM SUB-ASSEMBLY


    Camry. Acv40 Gsv40.U250E Automatic Transaxle.Automatic Transaxle System.Automatic Transaxle Unit  Inspection
  1. Using a dial indicator, measure the inside diameter of the overdrive direct clutch drum sub-assembly bushing.

    Standard inside diameter:
    23.025 to 23.046 mm (0.9065 to 0.9073 in.)
    Maximum inside diameter:
    23.09 mm (0.9091 in.)
    If the diameter is greather than the maximum, replace the overdrive direct clutch drum sub-assembly.
    NOTICE:
    Check the contact surface of the bushing in the direct clutch shaft. If any scratch or discolor is identified, replace the direct clutch sub-assembly with a new one.


4. INSPECT 2ND BRAKE DISC


    Camry. Acv40 Gsv40
  1. Check if the sliding surfaces of the discs, plates and flange are worn or burnt.
    If necessary, replace them.

    NOTICE:
    1. If the linings of the discs are peeled off or discolored, or even if a part of the groove is damaged, replace all discs.
    2. Before assembling new discs, soak them in ATF for at least 15 minutes.


5. INSPECT 1ST AND REVERSE BRAKE DISC


    Camry. Acv40 Gsv40
  1. Check if the sliding surfaces of the discs, plates and flange are worn or burnt.
    If necessary, replace them.

    NOTICE:
    1. If the linings of the discs are peeled off or discolored, or even if a part of the groove is damaged, replace all discs.
    2. Before assembling new discs, soak them in ATF for at least 15 minutes.


6. INSPECT 1ST AND REVERSE BRAKE RETURN SPRING SUB-ASSEMBLY


    Camry. Acv40 Gsv40
  1. Using vernier calipers, measure the free length of the spring together with the spring seat.

    Standard free length:
    17.63 mm (0.6941 in.)
    If the free length is shorter than the standard free length, replace the 1st and reverse brake return spring sub-assembly.


7. INSPECT UNDERDRIVE BRAKE RETURN SPRING SUB-ASSEMBLY


    Camry. Acv40 Gsv40
  1. Using vernier calipers, measure the free length of the spring together with the spring seat.

    Standard free length:
    13.24 mm (0.5213 in.)
    If the free length is shorter than the standard free length, replace the under drive brake return spring sub-assembly.


8. INSPECT PACK CLEARANCE OF FIRST AND REVERSE BRAKE


    Camry. Acv40 Gsv40.U250E Automatic Transaxle.Automatic Transaxle System.Automatic Transaxle Unit  Inspection
  1. Using vernier calipers, measure the distance between the disc surface and the contact surface of the 2nd brake cylinder and transaxle case (Dimension A).

  1. Select an appropriate flange so that the pack clearance will be within the specified range.

    Pack clearance:
    0.745 to 1.21 mm (0.0293 to 0.0476 in.)
    HINT:
    Piston stroke = Dimension A - Flange thickness
    Flange thickness: mm (in.)
    Mark
    Thickness
    Mark
    Thickness
    1
    1.8 (0.071)
    5
    2.2 (0.087)
    2
    1.9 (0.075)
    6
    2.3 (0.091)
    3
    2.0 (0.079)
    7
    2.4 (0.094)
    4
    2.1 (0.083)
    8
    2.5 (0.098)
  1. Install the flange.



9. INSPECT PACK CLEARANCE OF SECOND BRAKE


    Camry. Acv40 Gsv40.U250E Automatic Transaxle.Automatic Transaxle System.Automatic Transaxle Unit  Inspection
  1. Using vernier calipers, measure the distance between the disc surface and snap ring surface (Dimension B).

  1. Select an appropriate flange so that the pack clearance will be within the specified range.

    Pack clearance:
    0.53 to 0.91 mm (0.0209 to 0.0358 in.)
    HINT:
    Piston stroke = Dimension B - Flange thickness - Snap ring thickness 1.6 mm (0.063 in.)
    Flange thickness: mm (in.)
    Mark
    Thickness
    Mark
    Thickness
    0
    2.9 (0.114)
    5
    3.4 (0.134)
    1
    3.0 (0.118)
    6
    3.5 (0.138)
    2
    3.1 (0.122)
    7
    3.6 (0.142)
    3
    3.2 (0.126)
    8
    3.7 (0.146)
    4
    3.3 (0.130)
    -
    -
  1. Install the flange.



10. INSPECT PACK CLEARANCE OF NO. 2 UNDERDRIVE CLUTCH


    Camry. Acv40 Gsv40
  1. Using a dial indicator, measure the underdrive clutch pack clearance while applying and releasing compressed air (392 kPa, 4.0 kgf/cm2, 57 psi).

    Pack clearance:
    1.645 to 2.20 mm (0.0648 to 0.0866 in.)
  1. Select an appropriate flange from the table below so that the pack clearance will be within the specified range.

    Flange thickness: mm (in.)
    Mark
    Thickness
    Mark
    Thickness
    Y
    2.8 (0.110)
    C
    3.4 (0.134)
    A
    3.0 (0.118)
    D
    3.6 (0.142)
    B
    3.2 (0.126)
    -
    -
  1. Temporarily remove the snap ring and attach the flange to the transaxle case.

  1. Reinstall the snap ring to the transaxle case.



11. INSPECT UNDERDRIVE ONE-WAY CLUTCH ASSEMBLY


    Camry. Acv40 Gsv40.U250E Automatic Transaxle.Automatic Transaxle System.Automatic Transaxle Unit  Inspection
  1. Install the underdrive clutch assembly to the one-way clutch.

  1. Rotate the underdrive clutch assembly to check the rotating direction for the lock or free operation.

  1. Remove the underdrive clutch assembly from the one-way clutch.



12. INSPECT INPUT SHAFT END PLAY


    Camry. Acv40 Gsv40
  1. Using a dial indicator, measure the input shaft end play.

    End play:
    0.262 to 1.244 mm (0.01 to 0.049 in.)


13. INSPECT DIRECT MULTIPLE DISC CLUTCH DISC


    Camry. Acv40 Gsv40
  1. Check if the sliding surfaces of the discs, plates, and flange are worn or burnt. If necessary, replace them.

    NOTICE:
    1. If the lining of a disc comes off or discolors, or a groove is damaged, replace all discs.
    2. Before assembling new discs, soak them in ATF for at least 15 minutes.


14. INSPECT OVERDRIVE DIRECT CLUTCH DISC


    Camry. Acv40 Gsv40
  1. Check if the sliding surfaces of the discs, plates, and flange are worn or burnt. If necessary, replace them.

    NOTICE:
    1. If the lining of a disc comes off or discolors, or a groove is damaged, replace all discs.
    2. Before assembling new discs, soak them in ATF for at least 15 minutes.


15. INSPECT OVERDRIVE CLUTCH RETURN SPRING SUB-ASSEMBLY


    Camry. Acv40 Gsv40.U250E Automatic Transaxle.Automatic Transaxle System.Automatic Transaxle Unit  Inspection
  1. Using vernier calipers, measure the free length of the spring together with the spring seat.

    Standard free length:
    25.91 mm (1.0201 in.)
    If the free length is shorter than the standard free length, replace the overdrive clutch return spring sub-assembly.


16. INSPECT PACK CLEARANCE OF DIRECT CLUTCH


    Camry. Acv40 Gsv40
  1. Install the intermediate shaft and needle roller bearing on the transaxle rear cover.

    NOTICE:
    Be careful not to damage the oil seal ring outers.
  1. Using a dial indicator, measure the direct clutch pack clearance while applying and releasing compressed air (392 kPa, 4.0 kgf/cm2, 57 psi).

    Pack clearance:
    0.60 to 0.82 mm (0.02362 to 0.03228 in.)
    If the pack clearance is not as specified, inspect the discs, plates and flange.


17. INSPECT PACK CLEARANCE OF OVERDRIVE CLUTCH


    Camry. Acv40 Gsv40
  1. Using a dial indicator, measure the overdrive clutch pack clearance while applying and releasing compressed air (392 kPa, 4.0 kgf/cm2, 57 psi).

    Pack clearance:
    0.52 to 0.83 mm (0.02047 to 0.03268 in.)
    If the pack clearance is not as specified, inspect the discs, plates and flange.


18. INSPECT PACK CLEARANCE OF DIRECT CLUTCH


    Camry. Acv40 Gsv40
  1. Install the intermediate shaft on the transaxle rear cover.

  1. Using a dial indicator, measure the direct clutch pack clearance while applying and releasing compressed air (392 kPa, 4.0 kgf/cm2, 57 psi).

    Pack clearance:
    0.60 to 0.82 mm (0.02362 to 0.03228 in.)
    If the pack clearance is less than the minimum, parts may have been assembled incorrectly, so check and reassemble.
    If the clearance is not as specified, select another flange.
    HINT:
    There are 8 different thicknesses of flanges available.
    Flange thickness: mm (in.)
    Mark
    Thickness
    Mark
    Thickness
    0
    2.9 (0.114)
    4
    3.3 (0.130)
    1
    3.0 (0.118)
    5
    3.4 (0.134)
    2
    3.1 (0.122)
    6
    3.5 (0.138)
    3
    3.2 (0.126)
    7
    3.6 (0.142)


19. INSPECT PACK CLEARANCE OF OVERDRIVE CLUTCH


    Camry. Acv40 Gsv40
  1. Using a dial indicator, measure the overdrive clutch pack clearance while applying and releasing compressed air (392 kPa, 4.0 kgf/cm2, 57 psi).

    Pack clearance:
    0.52 to 0.83 mm (0.02047 to 0.03268 in.)
    If the pack clearance is less than the minimum, parts may have been assembled incorrectly, so check and reassemble.
    If the clearance is not as specified, select another flange.
    HINT:
    There are 7 different thicknesses of flanges available.
    Flange thickness: mm (in.)
    Mark
    Thickness
    Mark
    Thickness
    0
    2.5 (0.098)
    4
    2.9 (0.114)
    1
    2.6 (0.102)
    5
    3.0 (0.118)
    2
    2.7 (0.106)
    6
    3.1 (0.122)
    3
    2.8 (0.110)
    -
    -


    Camry. Acv40 Gsv40
  1. Check that the disc rotates when rotating the disc after inserting the rear planetary sun gear.

    NOTICE:
    Do not place the rear planetary sun gear in a vise.


20. INSPECT 2ND BRAKE PISTON RETURN SPRING SUB-ASSEMBLY


    Camry. Acv40 Gsv40.U250E Automatic Transaxle.Automatic Transaxle System.Automatic Transaxle Unit  Inspection
  1. Using vernier calipers, measure the free length of the spring together with the spring seat.

    Standard free length:
    16.61 mm (0.6539 in.)
    If the free length is shorter than the standard free length, replace the 2nd brake piston return spring sub-assembly.