Component Tests

TORQUE CONVERTER CLUTCH AND DRIVE PLATE

INSPECTION
1. INSPECT TORQUE CONVERTER CLUTCH ASSY
a. Inspect the one-way clutch.





1. Install SST so that it fits in the notch of the converter hub and outer race of the one-way clutch.
SST 09350-32014 (09351-32020)





2. Press the serrations of the starter with a finger and rotate it.
Check if it rotates smoothly when turned clockwise and locks up when turned counterclockwise.
If the results are not as specified, clean the converter and retest the one-way clutch.
If the results are still not as specified, replace the converter.





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 on N, metallic sounds are not emitted from the torque converter clutch.
^ The one-way clutch does not turn in both directions.
^ The one-way clutch does not lock in both directions.
^ The amount of powder in the ATF is not greater than the sample shown in the illustration.
If the results are not as specified, replace the torque converter clutch assy.

HINT: The sample illustration shows approximately 0.25 liters (0.26 US qts, 0.22 Imp. qts) of auto fluid 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, stir the ATF in the torque converter clutch thoroughly and drain the ATF with the torque converter facing upward.





d. Clean and check the oil cooler and oil pipe line.
1. If the torque converter clutch is inspected or the ATF is replaced, clean the oil cooler and oil pipe line.

HINT:
^ Apply compressed air (196 kPa (2 kgf/cm2, 28 psi)) to the inlet hose.
^ If a large amount of powder is found in the ATF, add new

ATF using a bucket pump and clean it again.
2. If the ATF is cloudy, inspect the oil cooler (radiator).





e. Prevent deformation of the torque converter clutch and damage to the oil pump gear.
1. If any marks due to interference are found on the end of the bolt for the torque converter clutch and on the bottom of the bolt hole, replace the bolt and torque converter clutch.
2. All of the bolts should be the same length.
3. Make sure no spring washers are missing.





2. INSPECT DRIVE PLATE & RING GEAR SUB-ASSY
a. Prepare a dial indicator and measure the drive plate run-out.
b. Check the runout on the ring gear.
Maximum runout: 0.20 mm (0.0079 inch)
If the runout is not as specified or the ring gear is damaged, replace the drive plate.