Torque Converter And Drive Plate: Inspection

INSPECT TORQUE CONVERTER CLUTCH ASSEMBLY
1. Inspect the 1-way clutch.
  
  Fig 1: Inspecting 1-way Clutch
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. Press on the serrations of the stator with a finger and rotate the stator. Check that the stator rotates smoothly when turned clockwise and locks when turned counterclockwise. If necessary, clean the converter and recheck the 1-way clutch.
  Replace the converter if the 1-way clutch still fails the check.
2. 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.
  HINT:
  
  The sample illustration shows approximately 0.25 liters (0.26 US qts, 0.22 lmp. 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, completely stir the ATF in the torque converter clutch and drain the ATF with the torque converter facing upward.
  Fig 2: Identifying Allowable Amount Of Powder In ATF
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSPECT DRIVE PLATE
1. Check the drive plate for damage.
2. Set up a dial indicator and measure the runout of the 6 portions around the torque converter fitting surfaces.
  Maximum runout:
  
  0.30 mm (0.018 in.)
  
  If the runout is more than the maximum or if the drive plate is damaged, replace the drive plate. If installing a new drive pate, be careful of the orientation of the spacers and tighten the bolts (See INSTALLATION ).
  
  Fig 3: Identifying Drive Plate
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002