AUTOMATIC TRANSAXLE UNIT INSPECTION


  1. INSPECT TRANSMISSION OIL CLEANER MAGNET


    1. A01HXIB

      Use the removed transmission oil cleaner magnets to collect any steel chips. Examine the chips and particles in the automatic transaxle oil pan sub-assembly and on the transmission oil cleaner magnets to determine what type of wear has occurred in the automatic transaxle assembly.

      Result
      Steel (magnetic) Brass (non-magnetic)
      Bearing, gear and plate wear Bushing wear

  2. INSPECT INPUT SHAFT SUB-ASSEMBLY END PLAY


    1. A01I20A

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

      Standard End Play
      0.020 to 1.242 mm (0.000788 to 0.0488 in.)

  3. INSPECT INTERMEDIATE SHAFT END PLAY


    1. A01I12LE01
      Text in Illustration
      *a Dimension A

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

    2. Place a straightedge on the multiple direct clutch drum and measure the distance between the transaxle case sub-assembly and the straightedge using a vernier caliper (Dimension A).

    3. A01I09AE03
      Text in Illustration
      *a Dimension B

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

  4. INSPECT PLANETARY SUN GEAR SUB-ASSEMBLY


    1. A01I17P

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

      Standard Inside Diameter
      25.525 to 25.546 mm (1.00492 to 1.00575 in.)
      Maximum Inside Diameter
      25.546 mm (1.00575 in.)

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

  5. INSPECT REAR PLANETARY SUN GEAR ASSEMBLY


    1. A01HZTL

      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 (1.00791 in.)

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

  6. INSPECT UNDERDRIVE PLANETARY GEAR ASSEMBLY


    1. A01I20F

      Using a feeler gauge, measure the clearance between the underdrive planetary gear assembly 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.

  7. INSPECT ONE-WAY CLUTCH ASSEMBLY


    1. A01HZ0BE05
      Text in Illustration
      *1 Planetary Ring Gear
      *2 One-way Clutch Assembly
      *a Free
      *b Lock

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

    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.

  8. INSPECT NO. 1 BRAKE DISC


    1. A01HYI3

      Check if the contact surfaces of the No. 1 brake discs, No. 1 brake plates and No. 1 brake flange are worn or burnt.

      Note


      • If the lining of any No. 1 brake disc is peeled off or discolored, or even if part of the groove is damaged, replace all No. 1 brake discs.

      • Before assembling new No. 1 brake discs, soak them in ATF for at least 15 minutes.

      If necessary, replace them.

  9. INSPECT NO. 2 BRAKE DISC


    1. A01I0QV

      Check if the contact surfaces of the No. 2 brake discs, No. 2 brake plates and No. 2 brake flange are worn or burnt.

      Note


      • If the lining of any No. 2 brake disc is peeled off or discolored, or even if part of the groove is damaged, replace all No. 2 brake discs.

      • Before assembling new No. 2 brake discs, soak them in ATF for at least 15 minutes.

      If necessary, replace them.

  10. INSPECT NO. 3 BRAKE DISC


    1. A01HZ7A

      Check if the contact surfaces of the No. 3 brake discs, No. 3 brake plates and No. 3 brake flanges are worn or burnt.

      Note


      • If the lining of any No. 3 brake disc is peeled off or discolored, or even if part of the groove is damaged, replace all No. 3 brake discs.

      • Before assembling new No. 3 brake discs, soak them in ATF for at least 15 minutes.

      If necessary, replace them.

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


    1. A01I154

      Using a vernier caliper, measure the free length of the 3 2nd brake piston return spring sub-assemblies 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 sub-assembly.

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


    1. A01I1UO

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

      Standard Free Length
      15.79 mm (0.622 in.)

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

  13. INSPECT NO. 3 BRAKE PISTON RETURN SPRING SUB-ASSEMBLY


    1. A01HY0P

      Using a vernier caliper, measure the free length of the No. 3 brake piston return spring sub-assembly 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 sub-assembly.

  14. INSPECT CLEARANCE OF NO. 1 BRAKE


    1. A01HYMOE01
      Text in Illustration
      *1 No. 1 Brake Piston
      *a Clearance

      Apply compressed air to the oil pressure supply hole shown in the illustration, and check the operation of the No. 1 brake piston.

    2. Set a dial indicator as shown in the illustration.

    3. 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.)

      Tech Tips


      • Measure the clearance at 3 points where the No. 1 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.

      • There are 6 No. 1 brake flanges of different thicknesses.

      No. 1 Brake Flange Thickness: mm (in.)
      Mark Thickness
      30 3.0 (0.118)
      31 3.1 (0.122)
      32 3.2 (0.126)
      33 3.3 (0.130)
      34 3.4 (0.134)
      35 3.5 (0.138)

  15. INSPECT CLEARANCE OF NO. 2 BRAKE


    1. A01I0QSE01
      Text in Illustration
      *1 No. 2 Brake Piston
      *a Clearance

      Apply compressed air to the oil pressure supply hole shown in the illustration, and check the operation of the No. 2 brake piston.

    2. Set a dial indicator as shown in the illustration.

    3. 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
      0.707 to 0.974 mm (0.0278 to 0.0383 in.)

      Tech Tips


      • Measure the clearance at 3 points where the No. 2 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.

      • There are 5 No. 2 brake flanges of different thicknesses.

      No. 2 Brake Flange Thickness: mm (in.)
      Mark Thickness
      40 4.0 (0.157)
      41 4.1 (0.161)
      42 4.2 (0.165)
      43 4.3 (0.169)
      44 4.4 (0.173)

  16. INSPECT CLEARANCE OF NO. 3 BRAKE


    1. A01HY7ZE01
      Text in Illustration
      *1 Front Oil Pump Assembly
      *2 No. 3 Brake Piston
      *a Dimension A
      *b Dimension B
      *c Contact Surface of Front Oil Pump Assembly

      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 No. 3 brake flange.

      Tech Tips

      Measure dimension A at 3 points where the No. 3 brake 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).

      Tech Tips

      Measure dimension B at 3 points where the No. 3 brake piston 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 No. 3 brake flange so that the clearance will be within the specified range.

      Tech Tips

      There are 6 No. 3 brake flanges of different thicknesses.

      No. 3 Brake Flange Thickness: mm (in.)
      Mark Thickness
      38 3.80 (0.150)
      39 3.90 (0.154)
      40 4.00 (0.157)
      41 4.10 (0.161)
      42 4.20 (0.165)
      43 4.30 (0.169)

  17. INSPECT CLEARANCE OF NO. 1 CLUTCH DISC


    1. A01HZXW

      Install the rear multiple disc clutch assembly to 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. A01HYUOE03
      Text in Illustration
      *a Feeler Gauge

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

      Tech Tips

      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.

  18. INSPECT CLEARANCE OF NO. 2 CLUTCH DISC


    1. A01I02R

      Install the rear multiple disc clutch assembly to 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. 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).

      Tech Tips

      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.