LEXUS LS430 2003 Factory Repair Manual

SST 09223-56010
5.INSTALL DRIVE PLATE & RING GEAR SUB-ASSY
a. Hold the crankshaft with SST.
SST 09213-7001 1, 09330-00021

Fig. 308: Holding Crankshaft Using SST
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
HINT:
The mounting bolts are tightened in 2 progressive steps (steps (c) and (e)).
If any one of the mounting bolts is broken or deformed, replace it.
b. Apply adhesive to 2 or 3 threads of the mounting bolt end.
Adhesive:
Part No. 08833-00070, THREE BOND 1324 or equivalent

Fig. 309: Applying Adhesive To Threads Of Mounting Bolt
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
c. Install the front spacer, drive plate and rear spacer on the crankshaft.
d. Install and uniformly tighten the 8 mounting bolts in several passes in the sequence shown in the
illustration.
Torque: 49 N.m (500 kgf.cm, 36 ft.lbf)

Fig. 310: Installing Mounting Bolts
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
If any one of the mounting bolts does not meet the torque specification, replace the mounting bolt.
e. Mark the mounting bolt with paint.
f. Retighten the mounting bolts by 90° in the sequence shown in the illustration.
g. Check that the painted mark is now at a 90° angle to (e).

Fig. 311: Locating Painted Mark
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
6.INSTALL AUTOMATIC TRANSMISSION ASSY (See REPLACEMENT
)
COMPONENTS

Fig. 312: Identifying Cylinder Head Assy Components
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
OVERHAUL
1.REMOVE VALVE LIFTER
a. Remove the valve lifter and adjusting shim.
HINT:
Arrange the valve lifters and shims in correct order.
2.REMOVE INTAKE VALVE
a. Using SST, compress the compression spring and remove the 2 keepers.
SST 09202-70020 (09202-01010)
b. Remove the spring retainer, compression spring, valve and spring seat.

Fig. 313: Removing Intake Valve Using SST
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
HINT:
Arrange the valves, compression springs, spring seats and spring retainers in the correct order.
3.REMOVE EXHAUST VALVE
a. Using SST, compress the compression spring and remove the 2 keepers.
SST 09202-70020 (09202-00010)

Fig. 314: Removing Compression Spring And Removing Keepers Using SST
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
b. Remove the spring retainer, compression spring, valve and spring seat.
HINT:
Arrange the valves, compression springs, spring seats and spring retainers in the correct order.
4.REMOVE VALVE STEM OIL O SEAL OR RING
a. Usin
g needle-nose pliers, remove the oil seal.

Fig. 315: Removing Oil Seal Using Needle-Nose Pliers
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
5.INSPECT CYLINDER HEAD SUB-ASSY
a. Clean the cylinder head.
1. Using a gasket scraper, remove all the gasket material from the cylinder block contact
surface.

Fig. 316: Cleaning Cylinder Head
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
2. Usin
g a wire brush, remove all the carbon from the combustion chambers.