UNDERDRIVE CLUTCH INSPECTION


  1. INSPECT UNDERDRIVE PACK CLEARANCE


    1. A017E8SE01

      Install the underdrive clutch to the transaxle case.

      Note

      Be careful not to damage the oil seal rings.

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

    3. Measure the underdrive clutch pack clearance while applying and releasing compressed air (392 kPa, 4.0 kgf/cm2, 57 psi).

      Pack clearance
      1.51 to 1.71 mm (0.0594 to 0.0673 in.)

      If the pack clearance is not as specified, inspect the discs, plates, and flange.

      Tech Tips

      There are 5 different thicknesses of flanges available.

      Flange thickness: mm (in.)
      Mark Thickness Mark Thickness
      1 3.0 (0.118) 4 3.6 (0.141)
      2 3.2 (0.126) 5 3.8 (0.150)
      3 3.4 (0.134) - -

  2. INSPECT NO. 1 UNDERDRIVE CLUTCH DISC


    1. A017FB2

      Check if the sliding surface of the disc, plate, and flange are worn or burnt. If necessary, replace them.

      Tech Tips


      • If the lining of the disc comes off or discolors, or if a part of the groove is worn, replace all discs.

      • Before installing new discs, immerse them in ATF for at least 15 minutes.

  3. INSPECT UNDERDRIVE CLUTCH DRUM SUB-ASSEMBLY


    1. A017B4LE01

      Using a dial indicator, measure the inside diameter of the underdrive clutch drum bushing.

      Standard drum bushing
      37.06 to 37.08 mm (1.4591 to 1.4598 in.)
      Maximum drum bushing
      37.13 mm (1.4618 in.)

      If the inside diameter is greater than the maximum, replace the underdrive clutch drum.

  4. INSPECT UNDERDRIVE CLUTCH RETURN SPRING SUB-ASSEMBLY


    1. A017EEV

      Using vernier calipers, measure the free length of the spring together with the spring seat.

      Standard free length
      17.14 mm (0.6748 in.)