2003 LEXUS LS430 Factory Repair Manual

Page 3329 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 49: Identifying Exhaust Manifold Sub-Assy RH 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
72.INSPECT EXHAUST MANIFOLD SUB-ASSY RH 
a. Using a precision straight edge and feeler gauge, measure t

Page 3330 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 50: Measuring Surface Cylinder Head 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
73.REMOVE EXHAUST MANIFOLD HEAT INSULATOR NO.2  
74.REMOVE EXHAUST MANIFOLD SUB-ASSY LH 
a. Remove the 8 nuts, e

Page 3331 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 51: Removing Exhaust Manifold Sub-Assy LH 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
75.INSPECT EXHAUST MANIFOLD SUB-ASSY LH 
a. Using a precision straight edge and feeler gauge, measure the

Page 3332 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 52: Measuring Surface 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
76.REMOVE WIRING HARNESS HEAT INSULATOR NO.2  
77.REMOVE ENGINE MOUNTING BRACKET FRONT NO.1 RH  
78.REMOVE ENGINE MOUNTING BRA

Page 3333 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 53: Installing Engine Mounting Bracket Front No.1 LH 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
80.INSTALL ENGINE MOUNTING BRACKET FRONT NO.1 RH 
a. Install the mounting bracket with the 4 bo

Page 3334 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 54: Installing Mounting Bracket And Bolts 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
81.INSTALL WIRING HARNESS HEAT INSULATOR NO.2  
82.INSTALL EXHAUST MANIFOLD SUB-ASSY LH 
a. Place a new ga

Page 3335 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 55: Identifying White Mark 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
b. Install the exhaust manifold with 8 new nuts. Uniformly tighten the nuts in several passes.  
Torque: 44 N.m (449 kgf.

Page 3336 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 56: Installing Exhaust Manifold 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
83.INSTALL EXHAUST MANIFOLD HEAT INSULATOR NO.2  
84.INSTALL EXHAUST MANIFOLD SUB-ASSY RH 
a. Place a new gasket on