TORQUE CONVERTER CLUTCH AND DRIVE PLATE > INSPECTION |
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1. INSPECT TORQUE CONVERTER CLUTCH ASSEMBLY |
Inspect the one-way clutch.
Install SST into the inner race of the one-way clutch.
- SST
- 09350-32014
(09351-32010)
Set 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)
With the torque converter standing on its side, check that the clutch locks when turned counterclockwise and rotates freely and smoothly clockwise.
If necessary, clean the converter and check the one-way clutch again.
Replace the converter if the one-way clutch still does not operate as specified.Text in Illustration Lock Free
Check the condition of the torque converter clutch assembly.
Text in Illustration *a Sample showing maximum allowable amount of powder in ATF
If the inspection result of the torque converter clutch assembly matches any of the cases mentioned below, replace the torque converter clutch.
- Malfunction item:
- Any metallic sound is heard from the torque converter clutch during stall test or when the shift lever is in N.
One-way clutch is free or locked in both directions. Fine powder exceeding the sample limit are identified in ATF. (See the sample.)
- HINT:
- The sample shows the auto fluid of approximately 0.025 liters (0.026 US qts, 0.022 Imp. qts) that is taken out from the removed torque converter clutch.
Replace the ATF in the torque converter clutch.
If the ATF is discolored and/or has a foul odor, completely stir the ATF in the torque converter clutch and drain it with the installation surface facing up.
Clean and then check the oil cooler and oil pipe line.
If inspecting the torque converter clutch or exchanging the ATF, clean the oil cooler and oil pipe line.
- HINT:
- Apply compressed air of 196 kPa (2 kgf/cm2, 28 psi) from the inlet hose.
- If excessive fine powder is found in the ATF, add new ATF using a bucket pump and clean the ATF again.
If the ATF is cloudy, inspect the oil cooler (radiator).
Be careful not to deform the torque converter clutch or damage the oil pump gear.
Text in Illustration *a Correct *b Incorrect *c Bottom is damaged
When any marks due to interference are found on the end of the bolt on the torque converter clutch and on the bottom of the bolt hole, replace the bolt and the torque converter clutch.
All the bolts should be the same length.
Do not lose any spring washers.
2. INSPECT RUNOUT OF DRIVE PLATE AND RING GEAR SUB-ASSEMBLY |
Check the drive plate for damage.
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.)
Text in Illustration *a Measuring point - If the runout is more than the maximum or if the drive plate is damaged, replace the drive plate.
3. INSPECT RUNOUT OF TORQUE CONVERTER CLUTCH ASSEMBLY |
Provisionally mount the torque converter onto the drive plate, set up a dial indicator, and measure the torque converter sleeve runout.
- Maximum runout:
- 0.30 mm (0.0118 in.)
- HINT:
- Mark the position of the converter to ensure correct installation.