2003 LEXUS LS430 camshaft service

Fig. 98: Removing Bolts And Timing Pulley
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
a. Remove the camshafts of the RH bank.
1. Bring the service bolt hole of the sub gear upward by turning the hexagon wrench head portion of
the No. 2 camshaft with a wrench.
2. Secure the sub gear to the main gear with a service bolt.
RECOMMENDED SERVICE BOLT:
RECOMMENDED SERVICE BOLT
HINT:
When removing the camshafts, make sure that the torsional spring force of the sub gear has been
eliminated b
y the above operation.
Thread diameter6 mm
Thread pitch1.0 mm
Bolt length16 to 20 mm (0.63 to 0.79 in.)

Fig. 101: Removing Bearing Cap Bolts
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
a. Remove the camshafts of the LH bank.
1. Boring the service bolt hole of the sub gear upward by turning the hexagon wrench head portion of
the No. 4 camshaft with a wrench.
2. Secure the sub
gear to the main gear with a service bolt.

Fig. 102: Removing Camshafts Of LH Bank
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
RECOMMENDED SERVICE BOLT:
RECOMMENDED SERVICE BOLT
HINT:
When removing the camshaft, make sure that the torsional spring force of the sub gear has been
eliminated by the above operation.
3. Align the timing mark (2 dot marks) of the camshaft drive gear by turning the hexagon wrench
head portion of the No. 4 camshaft with a wrench.
Thread diameter6 mm
Thread pitch1.0 mm
Bolt length16 to 20 mm (0.63 to 0.79 in.)

Fig. 121: Mounting Hexagon Wrench Head Portion Of Camshaft In A Vise
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
b. Using SST, turn the sub gear clockwise and remove the service bolt.
SST 09960-10010 (09962-01000, 09963-00500)

Fig. 127: Mounting Hexagon Wrench Head Portion Of Camshaft In A Vise
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
d. Using SST, align the holes of the driven main gear and sub gear by turning the sub gear clockwise.
Temporarily install a service bolt.
SST 09960-10010 (09962-01000, 09963-00500)
e. Ali
gn the gear teeth of the driven main gear and sub gear, and tighten the service bolt.

Fig. 153: Tightening Bearing Cap Bolts
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
15. Remove the service bolt.
63.INSTALL NO.3 CAMSHAFT SUB-ASSY

Fig. 164: Removing Service Bolt
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
64.INSTALL TIMING BELT PLATE RR RH
a. Install the timing belt plate with the bolt and stud bolt.
Torque: 7.5 N.m (77 kgf.cm, 66 in.lbf)
65.INSTALL TIMING BELT PLATE RR RH NO.2
a. Install the timing belt plate with the 2 bolts.
Torque: 7.5 N.m (77 kgf.cm, 66 in.lbf)
66.INSTALL TIMING BELT PLATE RR LH
a. Install the timing belt plate with the bolt.
Torque: 7.5 N.m (77 kgf.cm, 66 in.lbf)
67.INSTALL TIMING BELT PLATE RR LH NO.2
a. Install the timing belt plate with the 2 bolts.
Torque: 7.5 N.m (77 kgf.cm, 66 in.lbf)
68.INSTALL CAMSHAFT TIMING PULLEY
a. Ali
gn the camshaft timing tube knock pin with the knock pin groove of the timing pulley.

Fig. 214: Removing Camshaft Timing Pulley
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
5.REMOVE CAMSHAFT TIMING OIL CONTROL VALVE ASSY
6.REMOVE CAMSHAFT
a. Bring the service bolt hole of the sub gear upward by turning the hexagon wrench head portion of
the exhaust camshaft with a wrench.
b. Secure the sub gear to the main gear with a service bolt.
RECOMMENDED SERVICE BOLT:
RECOMMENDED SERVICE BOLT
Thread diameter6 mm
Thread pitch1.0 mm