Torque Converter And Drive Plate -- Inspection |
1. INSPECT TORQUE CONVERTER ASSEMBLY |
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Inspect the 1-way clutch.
Install SST to the inner race of the 1-way clutch.
- SST
- 09350-32014(09351-32010)
Set SST so that it fits in the notch of the converter hub and in the outer race of the 1- way clutch.
- SST
- 09350-32014(09351-32020)
With the torque converter standing on its side, check that the clutch locks when SST is turned counterclockwise and rotates freely and smoothly when SST is turned clockwise.
If the results are not as specified, clean the converter and recheck the 1-way clutch.Text in Illustration Lock Free
If the results still are not as specified even after cleaning the converter, replace the converter.
Determine the condition of the torque converter.
Text in Illustration *a Sample showing maximum allowable amount of powder in ATF 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.
- The 1-way clutch turns in one direction and locks in the other direction.
- The amount of powder in the ATF is not more than the sample shown in the illustration.
- HINT:
- The sample illustration shows approximately 0.025 liters (0.026 US qts, 0.022 Imp. qts) of ATF taken from a removed torque converter.
- During the stall test or when the shift lever is in N, metallic sounds are not emitted from the torque converter.
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Replace the ATF in the torque converter.
If the ATF is discolored and/or has a foul odor, stir the ATF in the torque converter thoroughly and drain the ATF with the torque converter facing upward.
Clean and check the oil cooler and oil pipe line.
If the torque converter is inspected or the ATF is replaced, clean the oil cooler and oil pipe line.
- HINT:
- Apply compressed air at 196 kPa (2 kgf/cm2, 28 psi) into the inlet hose.
- If a large amount of powder is found in the ATF, add new ATF using a bucket pump and clean the oil cooler and oil pipe line again.
If the ATF is cloudy, inspect the oil cooler (radiator).
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Prevent deformation of the torque converter and damage to 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 a bolt for the torque converter and on the bottom of the bolt hole, replace the bolt and torque converter.
Make sure all of the bolts are the same length.
Make sure no spring washers are missing.
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2. INSPECT DRIVE PLATE |
Check the drive plate for damage.
Set up a dial indicator and measure the runout of the 6 portions around the torque converter contact surfaces.
- Maximum runout:
- 0.30 mm (0.0118 in.)
If the runout is more than the maximum or the drive plate is damaged, replace the drive plate (HILUX_TGN26 RM000000YMQ01GX_01_0135.html).Text in Illustration *a Measuring point
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