Clutch Drum And Input Shaft Assembly Inspection


  1. INSPECT REAR CLUTCH DISC

  2. INSPECT REVERSE CLUTCH HUB SUB-ASSEMBLY

  3. INSPECT FORWARD CLUTCH HUB SUB-ASSEMBLY

  4. INSPECT FORWARD MULTIPLE DISC CLUTCH DISC

  5. INSPECT FORWARD CLUTCH RETURN SPRING SUB-ASSEMBLY

  6. INSPECT DIRECT CLUTCH DISC

  7. INSPECT REVERSE CLUTCH RETURN SPRING SUB-ASSEMBLY

  8. INSPECT DIRECT CLUTCH RETURN SPRING SUB-ASSEMBLY

  9. INSPECT PACK CLEARANCE OF DIRECT CLUTCH

  10. INSPECT PACK CLEARANCE OF REVERSE CLUTCH

  11. INSPECT PACK CLEARANCE OF FORWARD CLUTCH

Clutch Drum And Input Shaft Assembly -- Inspection



1. INSPECT REAR CLUTCH DISC


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.A750F Automatic Transmission.Clutch Drum And Input Shaft Assembly.Clutch Drum And Input Shaft Assembly  Inspection
  1. Replace all discs if one of the following problems is present: 1) a disc, plate or flange is worn or burnt, 2) the lining of a disc is peeled off or discolored, or 3) grooves or printed numbers have even a little bit of damage.

    NOTICE:
    Before assembling new discs, soak them in ATF for at least 15 minutes.


2. INSPECT REVERSE CLUTCH HUB SUB-ASSEMBLY


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.A750F Automatic Transmission.Clutch Drum And Input Shaft Assembly.Clutch Drum And Input Shaft Assembly  Inspection
  1. Using a dial indicator, measure the inside diameter of the reverse clutch hub bushing.

    Standard inside diameter:
    35.812 to 35.837 mm (1.4099 to 1.4109 in.)
    Maximum inside diameter:
    35.887 mm (1.4129 in.)
    1. If the inside diameter is greater than the maximum, replace the reverse clutch hub.


3. INSPECT FORWARD CLUTCH HUB SUB-ASSEMBLY


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.A750F Automatic Transmission.Clutch Drum And Input Shaft Assembly.Clutch Drum And Input Shaft Assembly  Inspection
  1. Using a dial indicator, measure the inside diameter of the forward clutch hub bushing.

    Standard inside diameter:
    26.037 to 26. 062 mm (1.0251 to 1.0261 in.)
    Maximum inside diameter:
    26.112 mm (1.028 in.)
    1. If the inside diameter is greater than the maximum, replace the forward clutch hub.


4. INSPECT FORWARD MULTIPLE DISC CLUTCH DISC


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.A750F Automatic Transmission.Clutch Drum And Input Shaft Assembly.Clutch Drum And Input Shaft Assembly  Inspection
  1. Replace all discs if one of the following problems is present: 1) a disc, plate or flange is worn or burnt, 2) the lining of a disc is peeled off or discolored, or 3) grooves or printed numbers have even a little bit of damage.

    NOTICE:
    Before assembling new discs, soak them in ATF for at least 15 minutes.


5. INSPECT FORWARD CLUTCH RETURN SPRING SUB-ASSEMBLY


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.A750F Automatic Transmission.Clutch Drum And Input Shaft Assembly.Clutch Drum And Input Shaft Assembly  Inspection
  1. Using a vernier caliper, measure the free length of the spring together with the spring seat.

    Standard free length:
    26.74 mm (1.053 in.)


6. INSPECT DIRECT CLUTCH DISC


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.A750F Automatic Transmission.Clutch Drum And Input Shaft Assembly.Clutch Drum And Input Shaft Assembly  Inspection
  1. Replace all discs if one of the following problems is present: 1) a disc, plate or flange is worn or burnt, 2) the lining of a disc is peeled off or discolored, or 3) grooves or printed numbers have even a little bit of damage.

    NOTICE:
    Before assembling new discs, soak them in ATF for at least 15 minutes.


7. INSPECT REVERSE CLUTCH RETURN SPRING SUB-ASSEMBLY


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.A750F Automatic Transmission.Clutch Drum And Input Shaft Assembly.Clutch Drum And Input Shaft Assembly  Inspection
  1. Using a vernier caliper, measure the free length of the spring together with the spring seat.

    Standard free length:
    21.04 mm (0.828 in.)


8. INSPECT DIRECT CLUTCH RETURN SPRING SUB-ASSEMBLY


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.A750F Automatic Transmission.Clutch Drum And Input Shaft Assembly.Clutch Drum And Input Shaft Assembly  Inspection
  1. Using a vernier caliper, measure the free length of the spring together with the spring seat.

    Standard free length:
    19.51 mm (0.768 in.)


9. INSPECT PACK CLEARANCE OF DIRECT CLUTCH


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.A750F Automatic Transmission.Clutch Drum And Input Shaft Assembly.Clutch Drum And Input Shaft Assembly  Inspection
  1. Using a dial gauge, measure the moving distance (distance A) of the clutch flange at both ends across a diameter while blowing air from the oil hole as shown in the illustration, and calculate the average.

    Standard pack clearance:
    0.5 to 0.8 mm (0.020 to 0.031 in.)
    NOTICE:
    When measuring the moving distance, install a standard flange (thickness: 3.4 mm (0.031 in.)) to the position of the shaded area in the illustration.
    HINT:
    Flange moving distance A = 0.26 to 1.14 mm (0.010 to 0.045 in.)
    Pack clearance = Flange moving distance A - 0.05 mm (0.002 in.)
  1. If the pack clearance is not within the standard, select and install a clutch flange that makes the pack clearance within the standard.

    Standard flange thickness:
    No.
    Thickness
    No.
    Thickness
    0
    3.0 mm (0.118 in.)
    5
    3.5 mm (0.138 in.)
    1
    3.1 mm (0.122 in.)
    6
    3.6 mm (0.142 in.)
    2
    3.2 mm (0.126 in.)
    7
    3.7 mm (0.146 in.)
    3
    3.3 mm (0.130 in.)
    8
    3.8 mm (0.150 in.)
    4
    3.4 mm (0.134 in.)
    -
    -


10. INSPECT PACK CLEARANCE OF REVERSE CLUTCH


  1. Using a dial gauge, measure the reverse clutch piston stroke (distance A) and the moving distance (distance B) of the reverse flange at both ends across a diameter while blowing air (392 kPa, 4 kgf/cm2, 57 psi) from the oil hole as shown in the illustration, and calculate the average.

    Standard pack clearance:
    0.5 to 0.8 mm (0.020 to 0.031 in.)
    NOTICE:
    When measuring the moving distance, install a standard flange (thickness: 3.3 mm (0.130 in.)) to the position of the shaded area in the illustration.
    HINT:
    Piston stroke A = 1.05 to 2.15 mm (0.041 to 0.085 in.)
    Flange moving distance B = 0.72 to 1.08 mm (0.029 to 0.043 in.)
    Pack clearance = Piston stroke A - Flange moving distance B - 0.06 mm (0.002 in.)


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.A750F Automatic Transmission.Clutch Drum And Input Shaft Assembly.Clutch Drum And Input Shaft Assembly  Inspection

  1. If the pack clearance is not within the standard, select and install a clutch flange that makes the pack clearance within the standard.

    Standard flange thickness:
    No.
    Thickness
    No.
    Thickness
    0
    2.8 mm (0.110 in.)
    6
    3.4 mm (0.134 in.)
    1
    2.9 mm (0.114 in.)
    7
    3.5 mm (0.138 in.)
    2
    3.0 mm (0.118 in.)
    8
    3.6 mm (0.142 in.)
    3
    3.1 mm (0.122 in.)
    9
    3.7 mm (0.146 in.)
    4
    3.2 mm (0.126 in.)
    A
    3.8 mm (0.150 in.)
    5
    3.3 mm (0.130 in.)
    -
    -


11. INSPECT PACK CLEARANCE OF FORWARD CLUTCH


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.A750F Automatic Transmission.Clutch Drum And Input Shaft Assembly.Clutch Drum And Input Shaft Assembly  Inspection
  1. Using a dial gauge, measure the moving distance (distance A) of the clutch flange at both ends across a diameter while blowing air from the oil hole as shown in the illustration, and calculate the average.

    Standard pack clearance:
    0.6 to 0.9 mm (0.024 to 0.354 in.)
    NOTICE:
    When measuring the moving distance, install a standard flange (thickness: 3.4 mm (0.031 in.)) to the position of the shaded area in the illustration.
    HINT:
    Flange moving distance A = 0.26 to 1.36 mm (0.010 to 0.054 in.)
    Pack clearance = Flange moving distance A to 0.01 mm (0.0003 in.)
  1. If the pack clearance is not within the standard, select and install a clutch flange that makes the pack clearance within the standard.

    Standard flange thickness:
    No.
    Thickness
    No.
    Thickness
    0
    3.0 mm (0.118 in.)
    6
    3.6 mm (0.142 in.)
    1
    3.1 mm (0.122 in.)
    7
    3.7 mm (0.146 in.)
    2
    3.2 mm (0.126 in.)
    8
    3.8 mm (0.150 in.)
    3
    3.3 mm (0.130 in.)
    9
    3.9 mm (0.154 in.)
    4
    3.4 mm (0.134 in.)
    A
    4.0 mm (0.158 in.)
    5
    3.5 mm (0.138 in.)
    -
    -