timing belt LEXUS LS430 2003 Factory Owner's 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. 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
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 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
<004b0052004f004800560003005700520003004e00480048005300030057004b004800030056004800570057004c0051004a0003005300520056004c0057004c0052005100030052004900030057004b00480003005300580056004b000300550052004700
1100030003[
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

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
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
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 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. 177: Installing Damper Bolt Using SST
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
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

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
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.

Fig. 180: Installing Timing Belt Cover Sub-Assy No.3 LH
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
i. Connect the 2 water bypass hoses, as shown in the illustration.
j. Install the No. 3 water bypass pipe to the cover with the cap nut.
Torque: 7.5 N.m (77 kgf.cm, 66 in.lbf)
k. Install the en
gine wire to the 2 wire clamps on the cover.

Fig. 181: Connecting Water By-Pass Hoses
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
84.INSTALL TIMING CHAIN OR BELT COVER NO.2
a. Install the gasket to the cover.
b. Install the cover with the cap nut and 3 bolts.
Torque: 7.5 N.m (77 kgf.cm, 66 in.lbf)
c. Install the 2 PS air hoses to the clamp on the cover.