Torque Converter Clutch And Drive Plate: Inspection

1. Press on the serrations of the starter with a finger and rotate it Check that it rotates smoothly when turned clockwise and locks up when turned counterclockwise

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

   Replace the converter if the one-way clutch still fails the check

   Fig 1: Inspecting One-Way Clutch

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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 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

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 Amount Of Powder In ATF

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. When there is any damage to the end of the bolt for the torque converter clutch and to the bottom of the bolt hole, replace the bolt and the torque converter clutch
2. All of the bolts have to be the same length.
   Fig 3: Identifying Bolt Damage Area

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Maximum runout: 0.30 mm (0.0118 in.) 

If the runout is not within the specification or if the drive plate is damaged, replace the drive plate.

Fig 4: Inspecting Runout Of Drive Plate

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002