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Inspection [09/2014 - ]: Procedure

  1. INSPECT TORQUE CONVERTER ASSEMBLY 
    1. Inspect the one-way clutch.
      1. Install SST into the inner race of the one-way clutch.
        • SST: 09350-32014 
          1. 09351-32010
        GTY466497Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Set SST so that it fits in the notch of the torque converter assembly hub and the outer race of the one-way clutch.
        • SST: 09350-32014 
          1. 09351-32020
      3. With the torque converter assembly standing on its side, check that the clutch locks when SST is turned counterclockwise and rotates freely and smoothly when SST is turned clockwise.
        GTY450328Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Hold
        *b Turn
        Lock
        Free

        If necessary, clean the torque converter assembly and recheck the one-way clutch.

        Replace the torque converter assembly if the one-way clutch still fails the inspection.

    2. Inspect the torque converter assembly.

      If any of the following problems are present, replace the torque converter assembly.

      Malfunction: 

      • A metallic sound is emitted from the torque converter assembly during the stall test or when the shift lever is moved to N.
      • The one-way clutch turns smoothly or locks in both directions.
      • The amount of powder in the ATF is more than the sample shown in the illustration (refer to the sample).

      HINT: 

      The sample shows approximately 0.025 liters (0.026 US qts, 0.022 Imp. qts) of ATF in Petri dish, which has been taken from the removed torque converter assembly.

      GTY369362Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Sample Showing Maximum Allowable Amount of Powder in Fluid
      *b Full Scale
    3. Replace the ATF in the torque converter assembly.

      HINT: 

      If the ATF is discolored or has a foul odor, stir the ATF in the torque converter assembly and drain it before replacing the ATF.

    4. Prevent deformation of the torque converter assembly and damage to the oil pump gear.
      NOTE:

      Make sure that all of the bolts are the same length and that the specified bolts are used.

      HINT: 

      If there is any damage to the tip of a bolt for the torque converter assembly or to the bottom of a bolt hole, replace the bolt and torque converter assembly.

      GTY441342Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Correct
      *b Incorrect
      *c Bottom is damaged
  2. INSPECT DRIVE PLATE 
    1. Check the drive plate for damage.
      GTY517456Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Measurement Point
    2. Set up a dial indicator and measure the runout at the 6 areas on the drive plate surface that contact the torque converter assembly.

      Maximum Runout

      0.30 mm (0.0118 in.)

      HINT: 

      • If the runout is more than the maximum or the drive plate is damaged, replace the drive plate.
      • If installing a new drive plate, confirm that the spacers are oriented properly before tightening the bolts.

        Refer to INSTALLATION [09/2014 - ]

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