LEXUS LS430 2003 Factory Repair Manual

Seal packing: Part No. 08826-00080 or equivalent
Fig. 267: Pushing In Camshaft Oil Seal

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
h. Install the front bearing cap.
HINT:
Installing the front bearing cap will determine the thrust portion of the camshaft.
i. Install the other bearin
g caps in the sequence shown with the arrow mark facing forward.

Fig. 268: Identifying Bearing Cap Bolts
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
j. Push in the camshaft oil seal.

Fig. 269: Removing Service Bolt
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
k. Install 4 new seal washers to the bearing cap bolts (1 to 4).
l. Apply a light coat of engine oil on the threads and under the heads of the bearing cap bolts (5 to
22).
m. Install the oil feed pipe and the 22 bearing cap bolts.
n. Uniformly tighten the 22 bearing cap bolts in several passes in the sequence shown in the
illustration.
Torque:
<001a0011001800030031001100500003000b001a001a0003004e004a0049001100460050000f0003001900190003004c005100110011004f00450049000c0003004900520055000300450052004f00570003000b0015001400030044005100470003001500
15000c[
16 N.m (163 kgf.cm, 12 ft.lbf) for others

Fig. 270: Installing Camshaft Timing Pulley Sub-Assy LH
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
o. Remove the service bolt.
12.INSTALL CAMSHAFT TIMING OIL CONTROL VALVE ASSY

Fig. 271: Removing Upper And Lower Intake Manifold Assembly
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
13.INSTALL CAMSHAFT TIMING PULLEY SUB-ASSY LH
a. Align the camshaft timing tube knock pin with the knock pin groove of the timing pulley.
b. Attach the timing pulley to the camshaft timing tube. Face the timing pulley's "L" mark forward.
c. Hold the hexagon wrench head portion of the camshaft, and install the 4 pulley bolts.
Torque: 7.5 N.m (77 kgf.cm, 66 in..lbf)
14.INSTALL CYLINDER HEAD COVER SUB-ASSY LH (See REPLACEMENT
)
15.INSTALL TIMING BELT (See REPLACEMENT
)
REPLACEMENT

1.WORK FOR PREVENTING GASOLINE FROM SPILLING OUT (See PRECAUTION )
2.REMOVE CAMSHAFT (See REPLACEMENT
)
3.REMOVE THROTTLE BODY ASSY (See REPLACEMENT
)
4.REMOVE V-BANK COVER BRACKET NO.1
5.REMOVE V-BANK COVER BRACKET NO.2
6.REMOVE V-BANK COVER BRACKET NO.3
7.REMOVE V-VANK COVER BRACKET NO.4
8.REMOVE VACUUM SWITCHING VALVE ASSY
9.DISCONNECT FUEL PIPE SUB-ASSY NO.2 (See REPLACEMENT
)
<0029004c004a001100030015001a0015001d00030027004c00560046005200510051004800460057004c0051004a0003002b004800440057004800550003002c0051004f004800570003002b005200560048000300290055005200500003003a0044005700
48005500030025005c[
-Pass Joint
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
10.REMOVE INTAKE MANIFOLD ASSY
a. Remove the 6 bolts, 4 nuts, upper and lower intake manifold assembl
y and 2 gaskets.

Fig. 273: Removing Water By-Pass Joint RR
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
11.REMOVE WATER BYPASS JOINT RR
a. Disconnect the heater inlet hose from the water bypass joint.
b. Remove the 4 nuts, water bypass joint and 2 gaskets.
12.REMOVE WATER INLET HOUSING
a. Remove the 2 bolts and inlet housin
g.

Fig. 274: Removing Cylinder Head Sub-Assy
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
13.REMOVE WATER BYPASS JOINT FR
a. Disconnect the ECT sensor connector.
b. Remove the 4 nuts, water bypass joint and 2 gaskets.
14.REMOVE W/CATALYST CONVERTER ASSY

Fig. 275: Identifying Cylinder Head Bolts
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
15.REMOVE CYLINDER HEAD SUB-ASSY
a. Remove the bolt, and disconnect the wire clamp bracket on the engine wire from the camshaft
bearing cap.
b. Remove the EVAP from the cylinder head cover sub-assy.
c. Remove the 9 bolts, 9 seal washers, c
ylinder head cover sub-assy and gasket.

Fig. 276: Removing Cylinder Head Gasket
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
d. Uniformly loosen and remove the 10 cylinder head bolts and plate washers in the sequence shown
in the illustration.
e. Remove the cylinder head together with the RH manifold.
16.REMOVE CYLINDER HEAD GASKET