Flex Plate: Testing and Inspection

AA80E AUTOMATIC TRANSMISSION: TORQUE CONVERTER AND DRIVE PLATE: INSPECTION

1. INSPECT TORQUE CONVERTER CLUTCH ASSEMBLY

(a) Inspect the one-way clutch.

(1) Set SST so that it fits into the notch of the converter hub and the notch of the outer race of the one-way clutch.





SST : 09350-32014

09351-32010

09351-32020

(2) Stand the torque converter up and turn SST.





SST : 09350-32014

09351-32010

09351-32020

Check that it rotates smoothly when turned clockwise and locks up when turned counterclockwise.

If necessary, clean the converter and check the one-way clutch.

Replace the converter if the one-way clutch still does not operate as specified.

(b) 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 one-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 Imp. qts) of the ATF taken from a removed torque converter clutch.

(c) 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.

2. INSPECT RUNOUT OF DRIVE PLATE

(a) Check the drive plate for damage.

(b) Set up a dial indicator and measure the runout of the 6 portions around the torque converter fitting surfaces.





Maximum runout:

0.30 mm (0.0118 in.)

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

If installing a new drive plate, note the orientation of the spacers and tighten the bolts Installation.