2003 LEXUS LS430 Factory Repair Manual

Page 3553 of 4500

LEXUS LS430 2003  Factory Repair Manual 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

Page 3554 of 4500

LEXUS LS430 2003  Factory Repair Manual 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

Page 3555 of 4500

LEXUS LS430 2003  Factory Repair Manual 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 wi

Page 3556 of 4500

LEXUS LS430 2003  Factory Repair Manual 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.RE

Page 3557 of 4500

LEXUS LS430 2003  Factory Repair Manual 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 t

Page 3558 of 4500

LEXUS LS430 2003  Factory Repair Manual 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 j

Page 3559 of 4500

LEXUS LS430 2003  Factory Repair Manual 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

Page 3560 of 4500

LEXUS LS430 2003  Factory Repair Manual 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 illustr