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AUTOMATIC TRANSAXLE UNIT INSPECTION

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  1. Click here

    INSPECT TRANSMISSION OIL CLEANER MAGNET


    1. Examine particles in the automatic transaxle oil pan.


      1. A019KK7

        Collect any steel chips with the removed magnets. Look carefully at the chips and particles in the automatic transaxle oil pan and on the transmission oil cleaner magnets to see the type of wear which might be found in the automatic transaxle.

        Result
        Steel (magnetic) Brass (non-magnetic)
        Bearing, gear and plate wear Bushing wear
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    INSPECT INPUT SHAFT END PLAY


    1. A019NIY

      Using a dial indicator, measure the input shaft end play.

      Standard end play
      0.020 to 1.242 mm (0.000788 to 0.0488 in.)
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    INSPECT INTERMEDIATE SHAFT END PLAY


    1. A019K59E02

      Clean the contact surfaces of the transaxle case and rear transaxle cover sub-assembly.

    2. As shown in the illustration, place a straightedge on the multiple direct clutch drum and measure the distance between the transaxle case and the straightedge using a vernier caliper (Dimension A).

      Table 1. Text in Illustration
      *a Dimension A
    3. A019KZ0E03

      Using a vernier caliper and a straightedge, measure the distance shown in the illustration (Dimension B).

      Table 2. Text in Illustration
      *a Dimension B

    4. Calculate the end play value using the following formula:

      End play = Dimension B - Dimension A - Thrust needle roller bearing thickness

      Standard end play
      0.022 to 1.099 mm (0.000867 to 0.0432 in.)
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    INSPECT PLANETARY SUN GEAR SUB-ASSEMBLY


    1. A019P6Y

      Using a caliper gauge, measure the inside diameter of the bushings of the planetary sun gear.

      Standard inside diameter
      25.525 to 25.546 mm (1.00492 to 1.00575 in.)
      Maximum inside diameter
      25.546 mm (1.0057 in.)

      If the inside diameter is greater than the maximum, replace the planetary sun gear.

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    INSPECT REAR PLANETARY SUN GEAR ASSEMBLY


    1. A019OEI

      Using a caliper gauge, measure the inside diameter of the bushing of the rear planetary sun gear assembly.

      Standard inside diameter
      25.580 to 25.601 mm (1.00708 to 1.00791 in.)
      Maximum inside diameter
      25.601 mm (1.0079 in.)

      If the inside diameter is greater than the maximum, replace the automatic transaxle assembly.

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    INSPECT UNDERDRIVE PLANETARY GEAR ASSEMBLY


    1. A019OO2

      Using a feeler gauge, measure the clearance between the underdrive planetary gear and the pinion gear at 4 points.

      Standard clearance
      0.18 to 0.54 mm (0.00709 to 0.0213 in.)

      If the clearance is greater than the standard clearance, replace the underdrive planetary gear assembly.

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    INSPECT ONE-WAY CLUTCH ASSEMBLY


    1. A019LSFE04

      Temporarily install the one-way clutch assembly to the planetary ring gear.

      Table 3. Text in Illustration
      *1 Planetary Ring Gear
      *2 One-way Clutch Assembly
      *a Free
      *b Lock

    2. Make sure that the one-way clutch assembly turns freely counterclockwise and locks when turned clockwise.

      If the one-way clutch assembly does not operate normally, replace it.

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    INSPECT NO. 1 BRAKE DISC


    1. A019PMA

      Check if the contact surfaces of the discs, plates and flange are worn or burnt.

      Note:

      • If the lining of any disc is peeled off or discolored, or even if part of the groove is damaged, replace all discs.

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

      If necessary, replace them.

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    INSPECT NO. 2 BRAKE DISC


    1. A019PFZ

      Check if the contact surfaces of the discs, plates and flange are worn or burnt.

      Note:

      • If the lining of any disc is peeled off or discolored, or even if part of the groove is damaged, replace all discs.

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

      If necessary, replace them.

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    INSPECT NO. 3 BRAKE DISC


    1. A019NIE

      Check if the contact surfaces of the discs, plates and flanges are worn or burnt.

      Note:

      • If the lining of any disc is peeled off or discolored, or even if part of the groove is damaged, replace all discs.

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

      If necessary, replace them.

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    INSPECT 2ND BRAKE PISTON RETURN SPRING SUB-ASSEMBLY


    1. A019N35

      Using a vernier caliper, measure the free length of the 3 2nd brake piston return springs together with the spring seats.

      Standard free length
      23.26 mm (0.916 in.)

      If the free length is shorter than the standard free length, replace the 2nd brake piston return spring.

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    INSPECT 1ST AND REVERSE BRAKE RETURN SPRING SUB-ASSEMBLY


    1. A019PDE

      Using a vernier caliper, measure the free length of the 1st and reverse brake return spring together with the spring seat.

      Standard free length
      15.79 mm (0.621 in.)

      If the free length is shorter than the standard free length, replace the 1st and reverse brake return spring.

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    INSPECT NO. 3 BRAKE PISTON RETURN SPRING SUB-ASSEMBLY


    1. A019M8S

      Using a vernier caliper, measure the free length of the No. 3 brake piston return spring together with the spring seat.

      Standard free length
      9.15 mm (0.360 in.)

      If the free length is shorter than the standard free length, replace the No. 3 brake piston return spring.

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    INSPECT CLEARANCE OF NO. 1 BRAKE


    1. A019KNG

      Using a dial indicator, measure the clearance of the No. 1 brake while applying compressed air (200 kPa, 2.0 kgf/cm2, 29 psi).

      Standard clearance
      0.601 to 0.819 mm (0.0237 to 0.0322 in.)
      Tip:

      Measure the clearance at 3 points where the brake piston diameter is approximately 140 mm (5.51 in.) and calculate the average.

      If the clearance is not as specified, select an appropriate No. 1 brake flange so that the clearance will be within the specified range.

      Table 4. No. 1 Brake Flange Thickness
      Part No. Thickness [mm (in.)] Mark
      35676-73010 3.0 (0.118) 30
      35676-73020 3.1 (0.122) 31
      35676-73030 3.2 (0.126) 32
      35676-73040 3.3 (0.130) 33
      35676-73050 3.4 (0.134) 34
      35676-73060 3.5 (0.138) 35
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    INSPECT CLEARANCE OF NO. 2 BRAKE


    1. A019MYN

      Using a dial indicator, measure the clearance of the No. 2 brake while applying compressed air (200 kPa, 2.0 kgf/cm2, 29 psi).

      Standard clearance
      0.884 to 1.196 mm (0.0348 to 0.0471 in.)
      Tip:

      Measure the clearance at 3 points where the brake piston diameter is approximately 140 mm (5.51 in.) and calculate the average.

      If the clearance is not as specified, select an appropriate No. 2 brake flange so that the clearance will be within the specified range.

      Table 5. No. 2 Brake Flange Thickness
      Part No. Thickness [mm (in.)] Mark
      35678-73010 4.0 (0.157) 40
      35678-73020 4.1 (0.161) 41
      35678-73030 4.2 (0.165) 42
      35678-73040 4.3 (0.169) 43
      35678-73050 4.4 (0.173) 44
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    INSPECT CLEARANCE OF NO. 3 BRAKE


    1. A019LFFE03

      Using a vernier caliper and a straightedge, measure the distance shown in the illustration (Dimension A) while a load of 500 N (51 kgf, 112.4 lbf) is being applied to the flange.

      Table 6. Text in Illustration
      *1 Front Oil Pump Assembly
      *2 No. 3 Brake
      *a Dimension A
      *b Dimension B
      *c Contact Surface of Front Oil Pump Assembly
      Tip:

      Measure dimension A at 3 points where the flange diameter is approximately 166 mm (6.54 in.) and calculate the average.

    2. Using a vernier caliper and a straightedge, measure the distance shown in the illustration (Dimension B).

      Tip:

      Measure dimension B at 3 points where the No. 3 brake diameter is approximately 166 mm (6.54 in.) and calculate the average.

    3. Calculate the clearance value using the following formula:

      Clearance = Dimension B - Dimension A - Flange Thickness

      Standard clearance
      0.599 to 0.799 mm (0.0236 to 0.0315 in.)

      If the clearance is not as specified, select an appropriate brake flange so that the clearance will be within the specified range.

      Table 7. No. 3 Brake Flange Thickness
      Part No. Thickness [mm (in.)] Mark
      35679-73020 3.80 (0.150) 38
      35679-73030 3.90 (0.154) 39
      35679-73040 4.00 (0.157) 40
      35679-73050 4.10 (0.161) 41
      35679-73060 4.20 (0.165) 42
      35679-73070 4.30 (0.169) 43
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    INSPECT CLEARANCE OF NO. 1 CLUTCH


    1. A019L0B

      Install the direct multiple disc clutch assembly onto the rear transaxle cover sub-assembly.

    2. Check that the piston moves when compressed air (200 kPa, 2.0 kgf/cm2, 29 psi) is applied to the oil hole.

    3. A019MG8E02

      Using a feeler gauge, measure the No. 1 clutch pack clearance.

      Table 8. Text in Illustration
      *1 Feeler Gauge
      Tip:

      Measure the clearance at 3 points where the flange diameter is approximately 152 mm (5.98 in.) and calculate the average.

      Standard pack clearance
      0.601 to 0.819 mm (0.0237 to 0.0322 in.)

      If the pack clearance is not as specified, replace the rear multiple disc clutch assembly.

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    INSPECT CLEARANCE OF NO. 2 CLUTCH


    1. A019JON

      Install the direct multiple disc clutch assembly onto the rear transaxle cover sub-assembly.

    2. Using a dial indicator, measure the No. 2 clutch pack clearance while applying and releasing compressed air (200 kPa, 2.0 kgf/cm2, 29 psi).

      Tip:

      Measure the clearance at 3 points where the diameter of the No. 2 direct multiple clutch piston is approximately 152 mm (5.98 in.) and calculate the average.

      Standard pack clearance
      0.394 to 0.605 mm (0.0155 to 0.0238 in.)

      If the pack clearance is not as specified, replace the rear multiple disc clutch assembly.