Torque Converter & Drive Plate: Inspection

WARNING: This page is about a different variant/trim than selected.

Check of torque converter ASSY
1. Check of torque converter one-way clutch
  1. Insert the SST into the stator shaft fitting area.
    SST 09351-32010
  2. Insert the SST from the torque converter sleeve and engage it to the stator thrust washer cutout.
    SST 09351-32020
    
    Fig 1: Inserting SST Into Stator Shaft Fitting Area
    Courtesy of SUBARU OF AMERICA, INC.
  3. Raise the torque converter and turn the SST (tool).
    
    Fig 2: Raising Torque Converter By Turning SST
    Courtesy of SUBARU OF AMERICA, INC.
  Criteria: Turns lightly when turned clockwise and locked when turned counterclockwise.
2. Quality check of torque converter ASSY
  1. If the check result of the torque converter fits the criteria, replace the torque converter.
    
    Fig 3: Identifying Limit Sample Of Fines In Auto Fluid
    Courtesy of SUBARU OF AMERICA, INC.
  Criteria: Metallic sound is heard at the torque converter during stall test or in neutral.
  
  1-way clutch is free in both directions or locked.
  
  Auto fluid contains fines in amounts greater than the limit sample (see the limit sample)
  NOTE:
  - The limit sample of fines in auto fluid is approx. 0.025 L {0.026 US qt, 0.022 lmp qt} of auto fluid drawn from the removed torque converter to a petri dish.
  - For the limit sample of fines in auto fluid, refer to "Notes packaged with rebuilt A/T".
3. Replacement of auto fluid in torque converter
  1. If auto fluid has an unusual odor and is discolored, thoroughly stir the auto fluid in the torque converter and draw the auto fluid with the installing surface facing upward.
4. Check of oil cooler and oil pipeline cleaning
  1. When checking the torque converter and filling auto fluid, clean the oil cooler and the pipeline.
    NOTE: Clean by blowing 196 kPa {2.0 kgf/cm² , 28.4 psi} of compressed air from the inlet hose.
  2. If the auto fluid or the coolant is cloudy, check the oil cooler.
    
    Fig 4: Checking Oil Cooler And Oil Pipeline Cleaning
    Courtesy of SUBARU OF AMERICA, INC.
5. Prevention of torque converter deformation and oil pump gear damage
  1. If interference marks are found at the end of the torque converter installation bolt and the bottom of the torque converter installation hole, replace the bolt and the torque converter.
    
    Fig 5: Identifying Example Of Damage In T/C Set Block, Normal And Defective
    Courtesy of SUBARU OF AMERICA, INC.
  2. The installation bolt lengths shall be all the same. (10.3 to 10.8 mm {0.406 to 0.425 in})
Drive plate check
1. Drive plate check
  1. Using a dial gauge, check the drive plate runout.
    
    Fig 6: Checking Drive Plate Runout Using Dial Gauge
    Courtesy of SUBARU OF AMERICA, INC.
    
    Standard value: 0.30mm {0.0118in}
    
    NOTE: If it is not within the standard value, replace the drive plate and the ring gear. (Refer to REMOVAL )