clock LEXUS LS430 2003 Factory Owner's Manual

Fig. 89: Turning Crankshaft Counterclockwise
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
d. Using SST, loosen the tension between the camshaft timing pulley (RH bank) and crankshaft
timing pulley by slightly turning the camshaft timing pulley counterclockwise.
SST 09960-10010 (09962-01000, 09963-00350)
e. Disconnect the belt from the timing belt idler No. 1, and remove the belt.

Fig. 90: Turning Camshaft Timing Pulley Counterclockwise Using SST
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
16.INSPECT TIMING BELT
If there are any defects, as shown in the illustrations, check these points:
a. Premature parting
1. Check for proper installation.
2. Check the timing cover gasket for damage and proper installation.
b. If the belt teeth are cracked or damaged, check to see if either camshaft is locked.

Fig. 121: Mounting Hexagon Wrench Head Portion Of Camshaft In A Vise
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
b. Using SST, turn the sub gear clockwise and remove the service bolt.
SST 09960-10010 (09962-01000, 09963-00500)

Fig. 127: Mounting Hexagon Wrench Head Portion Of Camshaft In A Vise
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
d. Using SST, align the holes of the driven main gear and sub gear by turning the sub gear clockwise.
Temporarily install a service bolt.
SST 09960-10010 (09962-01000, 09963-00500)
e. Ali
gn the gear teeth of the driven main gear and sub gear, and tighten the service bolt.

Fig. 144: Tightening Cylinder Head Bolt
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
a. Set the crankshaft position.
1. Using the crankshaft damper bolt, turn the crankshaft, and set the set key of the crankshaft to
90° counterclockwise from the timing mark (1 dot mark) of the oil pump body.

Fig. 154: Removing Service Bolt
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
a. Check the set key of the crankshaft is at the position of 90° counterclockwise from the timing mark
(1 dot mark) of the oil pump body.

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 timing pulley of LH bank: 1/2 of a tooth
Camshaft timin
g pulley of RH bank: 1 tooth

Fig. 193: Checking Timing Marks
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
3. Using the crankshaft damper bolt, turn the crankshaft counterclockwise by approximately
50°.
With timing belt disengaged:
The crankshaft damper must be at the correct angle to avoid damage in later steps. If the
crankshaft pulley is at the wrong angle and then the camshaft timing pulley and the camshaft
are removed, the piston head and valve head may come in contact and be damaged.
c. Alternatel
y loosen the 2 bolts, and remove them, the belt tensioner and dust boot.

Fig. 194: Turning Crank-Shaft
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
d. Using SST, loosen the tension between the camshaft timing pulley (RH bank) and crankshaft
timing pulley by slightly turning the camshaft timing pulley (RH bank) counterclockwise.
SST 09960-10010 (09962-01000, 09963-00350)

Fig. 197: Aligning Timing Marks Of Camshaft Timing Pulleys And Timing Belt Plates
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 timing pulley of LH bank: 1/2 of a tooth
Camshaft timin
g pulley of RH bank: 1 tooth