2003 LEXUS LS430 clutch

Fig. 46: Installing Automatic Transmission Assy To Engine With 9 Bolts
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
b. Install the 6 torque converter clutch mounting bolts.
Torque: 48 N.m (490 kgf.cm, 35 ft.lbf)
HINT:
First install the black colored bolt and then the remainin
g 5 bolts.

Fig. 47: Installing 6 Torque Converter Clutch Mounting Bolts
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
42.INSTALL FLYWHEEL HOUSING UNDER COVER
a. Install the fly wheel housing under cover with the 2 bolts.
Torque: 18 N.m (184 kgf.cm, 13 ft.lbf)

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 09350-30020 (09351-32020)
Fig. 55: Installing SST

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
2. Press on the serrations of the starter with a finger and rotate it.
Clean the converter and retest the one-way clutch.
When the one-way clutch is turned clockwise, it rotates freely and when turned counterclockwise, it
locks.

Fig. 56: Pressing On Serrations Of Starter
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b. Determine the condition of the torque converter clutch assy.
1. If the inspection result of the torque converter clutch assy does not satisfy the standard
conditions, replace the torque converter clutch assy.
Malfunction item:
A metallic sound is emitted from the torque converter clutch assy during the stall test
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The one-way clutch is free or locked in both directions.
The amount of powder in the ATF is greater than the sample shown on the illust (see
the sample).
HINT:
The sample shows the auto fluid of approximately 0.25 liters (0.26 US qts, 0.22 Imp. qts) that is
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c. Change 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 facin
g up.

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
3.INSPECT RUNOUT OF TORQUE CONVERTER CLUTCH ASSY
a. Temporarily mount the torque converter clutch to the drive plate. Set up a dial indictor.
Maximum runout: 0.30 mm (0.0118 in.)
If runout exceeds the maximum, try to correct by changing the installation direction of the torque
converter clutch.
If runout cannot be corrected, replace the torque converter clutch.
HINT:
Mark the position of the torque converter clutch to reinstall it correctly.
b. Remove the torque converter clutch.
Fig. 59: Checking Runout Of Torque Converter Clutch Assy

Fig. 61: Removing 3 Magnets From Oil Pan
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
c. Examine particles in pan.
1. Collect any steel chips with the removed magnets. Carefully look at the foreign objects and
particles in the pan and on the magnets to guess at the type of wear which might be found in
the transmission. Steel (magnetic) hellip bearing, gear and clutch plate wear
Brass (non-ma
gnetic) hellip bushing wear

Fig. 74: Removing 3 Magnets From Oil Pan
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
c. Examine particles in the pan.
a. Collect any steel chips with the removed magnets. Carefully look at the foreign objects and
particles in the pan and on the magnets to guess at the type of wear which might be found in
the transmission. Steel (magnetic) hellip bearing, gear and clutch plate wear
Brass (non-ma
gnetic) hellip bushing wear