TORQUE CONVERTER CLUTCH AND DRIVE PLATE INSPECTION


  1. INSPECT TORQUE CONVERTER CLUTCH ASSEMBLY

    A01DOKFE01

    1. Inspect the 1-way clutch.


      1. Install SST to the inner race of the 1-way clutch.

        SST
        09350-32014   ( 09351-32010 )

      2. Set SST so that it fits in the notch of the converter hub and in the outer race of the 1- way clutch.

        SST
        09350-32014   ( 09351-32020 )
      3. A01DSIVE04

        With the torque converter standing on its side, check that the clutch locks when SST is turned counterclockwise and rotates freely and smoothly when SST is turned clockwise.

        Text in Illustration
        A01DQPB Lock
        A01DMKT Free

        If the results are not as specified, clean the converter and recheck the 1-way clutch.

        If the results still are not as specified even after cleaning the converter, replace the converter.

    2. A01DR7QE02
      Text in Illustration
      *1 Sample showing maximum allowable amount of powder in ATF

      Determine the condition of the torque converter clutch.


      1. Check that the following conditions are met:


        • During the stall test or when the shift lever is in N, metallic sounds are not emitted from the torque converter clutch.

        • The 1-way clutch turns in one direction and locks in the other direction.

        • The amount of powder in the ATF is not more than the sample shown in the illustration.

        If the results are not as specified, replace the torque converter clutch assembly.

        Tech Tips

        The sample illustration shows approximately 0.025 liters (0.026 US qts, 0.022 Imp. qts) of ATF taken from a removed torque converter clutch.

    3. Replace the ATF in the torque converter clutch.


      1. If the ATF is discolored and/or has a foul odor, stir the ATF in the torque converter clutch thoroughly and drain the ATF with the torque converter facing upward.

    4. Clean and check the oil cooler and oil pipe line.


      1. If the torque converter clutch is inspected or the ATF is replaced, clean the oil cooler and oil pipe line.

        Tech Tips


        • Apply compressed air of 196 kPa (2 kgf/cm2, 28 psi) into the inlet hose.

        • If a large amount of powder is found in the ATF, add new ATF using a bucket pump and clean the oil cooler and oil pipe line again.

      2. If the ATF is cloudy, inspect the oil cooler (radiator).

    5. A01DM4XE29
      Text in Illustration
      *a Correct
      *b Incorrect
      *c Bottom is damaged

      Prevent deformation of the torque converter clutch and damage to the oil pump gear.


      1. When any marks due to interference are found on the end of a bolt for the torque converter clutch and on the bottom of the bolt hole, replace the bolt and torque converter clutch.

      2. Make sure all of the bolts are the same length.

      3. Make sure no spring washers are missing.

  2. INSPECT DRIVE PLATE


    1. Check the drive plate for damage.

    2. A01DU8OE02
      Text in Illustration
      *1 Measuring point

      Set up a dial indicator and measure the runout of the 6 portions around the torque converter clutch contact surfaces.

      Maximum runout
      0.30 mm (0.0118 in.)

      If the runout is more than the maximum, or the drive plate is damaged, replace the drive plate Click here.