2003 LEXUS LS430 Factory Repair Manual

Page 3417 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 136: Identifying Water Pump Assy Bolts 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
60.INSTALL CYLINDER HEAD SUB-ASSY 
a. Place a new cylinder head gasket on the cylinder block. 
HINT: 
The rea

Page 3418 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 137: Placing Cylinder Head Gasket 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
c. Install the cylinder head bolts.  
HINT: 
The cylinder head bolts are tightened in 2 progressive steps (steps (

Page 3419 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 138: Identifying Cylinder Head Bolts 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Page 3420 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 139: Locating Portion A 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
4. Mark the front of the cylinder head bolt head with paint.  
5. Retighten the cylinder head bolts by 90° in the sequence

Page 3421 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 140: Locating Painted Mark 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
61.INSTALL CYLINDER HEAD LH 
a. Place a new cylinder head gasket on the cylinder block. 
HINT: 
The rear side of the cyli

Page 3422 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 141: Placing Cylinder Head On Cylinder Head Gasket 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
c. Install the cylinder head bolts.  
HINT: 
The cylinder head bolts are tightened in 2 progressi

Page 3423 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 142: Identifying Cylinder Head Bolt 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Page 3424 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 143: Locating Portion A 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
4. Mark the front of the cylinder head bolt head with paint.  
5. Retighten the cylinder head bolts by 90° in the sequence