TORQUE CONVERTER AND DRIVE PLATE INSPECTION

PROCEDURE

1. INSPECT TORQUE CONVERTER ASSEMBLY

   
   

   1. Inspect the one-way clutch.

      
      

      1. 

         	Difficult
         	Smooth

         Press on the spline of the stator with a finger and rotate the spline. Check that the spline rotates smoothly when turned clockwise and rotates with difficulty when turned counterclockwise.

         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. 

      *a	Sample showing maximum allowable amount of powder in ATF
      *b	Full Scale

      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).

      Tech Tips

      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 a torque converter assembly.

   3. Replace the ATF in the torque converter assembly.

      Tech Tips

      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. 

      *a	Correct
      *b	Incorrect
      *c	Bottom is damaged

      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.

      Tech Tips

      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.

2. INSPECT DRIVE PLATE (for Gasoline)

   
   

   1. 

      Measurement Point

      Check the drive plate for damage.

   2. Set up a dial indicator and measure the runout at the 6 areas on the drive plate and ring gear sub-assembly surface that contact the torque converter assembly.

      Maximum runout
      0.30 mm (0.0118 in.)

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

      for 1GR-FE:

      Click here

      for 2TR-FE:

      Click here

3. INSPECT PUMP IMPELLER DRIVE PLATE (for Diesel)

   
   

   1. 

      Measurement Point

      Check the pump impeller drive plate for damage.

   2. Set up a dial indicator and measure the runout at the 6 areas on the pump impeller drive plate surface that contact the torque converter assembly.

      Maximum runout
      0.30 mm (0.0118 in.)

      If the runout is more than the maximum or if the pump impeller drive plate is damaged, replace the pump impeller drive plate.

      for 1GD-FTV:

      Click here

      for 2GD-FTV:

      Click here