Torque Converter And Drive Plate: Inspection

INSPECT TORQUE CONVERTER CLUTCH ASSEMBLY
1. Inspect the 1-way clutch.
  1. Install SST so that it fits in a notch of the converter hub and a notch of the outer race of the 1-way clutch.
    SST 09350-30020 (09351-32020)
    
    Fig 1: Inspecting 1-Way Clutch
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. Press on the serrations of the starter with a finger and rotate it.
    Clean the converter and retest the 1-way clutch.
    
    When the 1-way clutch is turned clockwise, it rotates freely and when turned counterclockwise, it locks.
    
    Fig 2: Pressing On Serrations Of Starter
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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 on 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 greater 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 the ATF taken from a removed torque converter clutch.
    
    Fig 3: Identifying Allowable Amount Of Powder In ATF
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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.
INSPECT RUNOUT OF DRIVE PLATE & RING GEAR SUB-ASSEMBLY
1. Set up a dial indicator and measure the drive plate runout.
  Maximum runout:
  
  0.20 mm (0.0079 in.)
  
  If the runout is not within the specification or if the ring gear is damaged, replace the drive plate.
  
  Fig 4: Measuring Drive Plate Runout
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002