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 pulley and oil pump body.

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. Face the front mark (arrow) on the timing belt forward.
3. Connect the timin
g belt to the crankshaft timing pulley.

Fig. 172: Installing Timing Belt
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Align the installation mark on the timing belt with the timing mark of the crankshaft
timing pulley.
4. Connect the timing belt to the idler No. 2.
5. Connect the timing belt to the camshaft timing pulley LH.
Align the installation mark on the timing belt with the timing mark of the camshaft
timing pulley.
6. Connect the timing belt to the water pump pulley.
7. Connect the timing belt to the camshaft timing pulley (RH bank).
Align the installation mark on the timing belt with the timing mark of the camshaft
timing pulley.
8. Connect the timing belt to the idler No. 1.
9. Using a press, slowly press in the push rod using 981 to 9,807 N (100 to 1,000 kgf, 220 to
2,205 lbf) of pressure.
10. Align the holes of the push rod and housing. Pass a 1.27 mm hexagon wrench through the
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11. Release the press.

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 (265 kgf.cm, 19 ft.lbf)
3. Using pliers, remove the 1.27 mm hexagon wrench from the belt tensioner.
Fig. 173: Installing Belt Tensioner

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d. Check the valve timing.
1. Using the crankshaft damper bolt, slowly turn the crankshaft pulley 2 revolutions from TDC to
TDC.

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 align, remove the timing belt and reinstall it.

Fig. 175: Aligning Timing Marks
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74.INSTALL CRANKSHAFT POSITION SENSOR PLATE NO.1
a. Install the sensor plate. Face the cup side outward.
75.INSTALL TIMING GEAR COVER SPACER
a. Install the gasket to the cover spacer.
b. Install the cover spacer.
76.INSTALL TIMING BELT NO.1 COVER
a. Install the timing belt cover with the 4 bolts.
Torque: 7.5 N.m (77 kgf.cm, 66 in.lbf)
77.INSTALL CRANKSHAFT DAMPER SUB-ASSY
a. Using SST and a hammer, tap in the crankshaft damper.
SST 09223-46011

Fig. 176: Taping Crankshaft Damper Using SST And Hammer
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
b. Using SST, install the damper bolt.
SST 09213-70010, 09330-00021
Torque: 245 N.m (2,500 kgf.cm, 181 ft.lbf)
c. Ali
gn the pulley set key with the key groove of the crankshaft damper.

Fig. 177: Installing Damper Bolt Using SST
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78.ADJUST VALVE CLEARANCE (See ADJUSTMENT
)
79.INSTALL V-RIBBED BELT TENSIONER ASSY
a. Install the belt tensioner with the bolt and 2 nuts.
Torque: 16 N.m (163 kgf.cm, 11 ft.lbf)
HINT:
Use a bolt that is 106 mm (4.18 in.) in length.
80.INSTALL IDLER PULLEY SUB-ASSY NO.2
a. Install the idler pulley and cover plate with the bolt.
Torque: 39 N.m (398 kgf.cm, 29 ft.lbf)
81.INSTALL TIMING BELT COVER SUB-ASSY NO.2
a. Fit the timing belt cover, matching the claws and pin with each part.
b. Install the timing belt cover with the 2 bolts.
Torque: 16 N.m (163 kgf.cm, 12 ft.lbf)

HINT:
Use bolts that are 106 mm (4.17 in.) in length.
Fig. 178: Installing Timing Belt Cover Sub
-Assy No.2
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
82.INSTALL IDLER PULLEY ASSY
a. Install the idler pulley with the 2 bolts and 2 nuts.
Torque:
32 N.m (326 kgf.cm, 24 ft.lbf) for 14 mm head bolt A
16 N.m (163 kgf.cm, 12 ft.lbf) for 12 mm head bolt B
HINT:
Each bolt length is indicated below.
Bolt length:
114 mm (4.49 in.) for 14 mm head (A)

106 mm (4.17 in.) for 12 mm head (B)
Fig. 179: Installing Idler Pulley Assy

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83.INSTALL TIMING BELT COVER SUB-ASSY NO.3 LH
a. Install the gasket to the cover.
b. Run the camshaft position sensor wire through the cover hole.
c. Install the cover with the 4 bolts.
Torque: 7.5 N.m (77 kgf.cm, 66 in.lbf)
d. Install the wire grommet to the cover.
e. Install the sensor connector to the sensor holder.
f. Connect the sensor connector.
g. Install the sensor wire to the wire clamp on the cover.
h. Install the en
gine wire to the 2 wire clamps on the cover.