2003 LEXUS LS430 Factory Repair Manual

Page 3449 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 168: Installing Timing Belt Idler Sub-Assy No.1 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
73.INSTALL TIMING BELT 
a. Set the No. 1 cylinder to TDC/compression. 
1. Turn the hexagon wrench he

Page 3450 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 169: Aligning Timing Marks 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
HINT: 
Turn the camshaft timing pulleys slightly clockwise to make installation of the timing belt 
easier. 
Camshaft tim

Page 3451 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 170: Turning Camshaft Timing Pulleys 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
2. Using the crankshaft damper bolt, turn the crankshaft to align the timing marks of the 
crankshaft timin
g p

Page 3452 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 171: Turning Crankshaft To Aligning Timing Marks 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
b. Install the timing belt. 
1. Remove any oil or water on each pulley, and keep them clean. 
2. Fa

Page 3453 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 172: Installing Timing Belt 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
Align the installation mark on the timing belt with the timing mark of the crankshaft 
timing pulley.  
4. Connect the t

Page 3454 of 4500

LEXUS LS430 2003  Factory Repair Manual 12. Install the dust boot to the belt tensioner.  
c. Install the belt tensioner. 
1. Temporarily install the belt tensioner with the 2 bolts.  
2. Alternately tighten the 2 bolts. 
Torque: 26 N.m (26

Page 3455 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 174: Turning Crankshaft Pulley 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
2. Check that each pulley aligns with the timing marks as shown in the illustration.  
If the timin
g marks do not al

Page 3456 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 175: Aligning Timing Marks 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
74.INSTALL CRANKSHAFT POSITION SENSOR PLATE NO.1 
a. Install the sensor plate. Face the cup side outward.  
75.INSTALL TI