LEXUS LS430 2003 Factory Repair Manual

Fig. 160: Identifying Front Bearing Cap
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9. Push in the camshaft settin
g oil seal.

Fig. 161: Pushing Camshaft Setting Oil Seal
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10. Install a new seal washer to the bearing cap bolts (A and B).
11. Apply a light coat of engine oil on the threads and under the heads of the bearing cap bolts (D and
E).
Bolt length:
94 mm (3.70 in.) for A with seal washer
72 mm (2.83 in.) for B with seal washer
25 mm (0.98 in.) for C
52 mm (2.05 in.) for D
38 mm (1.50 in.) for E

12. Install the oil feed pipe and the 22 bearing cap bolts as shown in the illustration.
Fig. 162: Identifying Bearing Cap Bolts

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13. Uniformly tighten the 22 bearing cap bolts in several passes in the sequence shown in the
illustration.
Torque:
7.5 N.m (77 kgf.cm, 66 in.lbf) for bolt C
16 N.m (163 kgf.cm, 12 ft.lbf) for others

Fig. 163: Tightening Bearing Cap Bolts
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14. Remove the service bolt.

Fig. 164: Removing Service Bolt
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64.INSTALL TIMING BELT PLATE RR RH
a. Install the timing belt plate with the bolt and stud bolt.
Torque: 7.5 N.m (77 kgf.cm, 66 in.lbf)
65.INSTALL TIMING BELT PLATE RR RH NO.2
a. Install the timing belt plate with the 2 bolts.
Torque: 7.5 N.m (77 kgf.cm, 66 in.lbf)
66.INSTALL TIMING BELT PLATE RR LH
a. Install the timing belt plate with the bolt.
Torque: 7.5 N.m (77 kgf.cm, 66 in.lbf)
67.INSTALL TIMING BELT PLATE RR LH NO.2
a. Install the timing belt plate with the 2 bolts.
Torque: 7.5 N.m (77 kgf.cm, 66 in.lbf)
68.INSTALL CAMSHAFT TIMING PULLEY
a. Ali
gn the camshaft timing tube knock pin with the knock pin groove of the timing pulley.

b. Attach the timing pulley to the camshaft timing tube. Face the timing pulley's "R" mark forward.
c. Hold the hexagon wrench head portion of the camshaft and install the 4 pulley bolts.
Torque: 7.5 N.m (77 kgf.cm, 66 in.lbf)
Fig. 165: Installing Camshaft Timing Pulley

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69.INSTALL CAMSHAFT TIMING PULLEY SUB-ASSY LH
a. Align the camshaft timing tube knock pin with the knock pin groove of the timing pulley.
b. Attach the timing pulley to the camshaft timing tube. Face the timing pulley's "L" mark forward.
c. Hold the hexagon wrench head portion of the camshaft and install the 4 pulley bolts.
Torque: 7.5 N.m (77 kgf.cm, 66 in.lbf)

Fig. 166: Installing Camshaft Timing Pulley Sub-Assy LH
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70.INSTALL CRANKSHAFT TIMING PULLEY
a. Align the timing pulley set key with the key groove of the pulley.
b. Using SST and a hammer, tap in the timing pulley. Face the flange side inward.
SST 09223-46011

Fig. 167: Installing Crankshaft Timing Pulley
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71.INSTALL TIMING BELT IDLER SUB-ASSY NO.2
a. Install the idler with the bolt.
Torque: 34.5 N.m (352 kgf.cm, 25 ft.lbf)
b. Check that the idler moves smoothly.
72.INSTALL TIMING BELT IDLER SUB-ASSY NO.1
a. Apply adhesive to 2 or 3 threads of the pivot bolt.
Adhesive:
Part No. 08833-00080, THREE BOND 1344, LOCTITE 242 or equivalent
b. Using a 10 mm hexagon wrench, install the plate washer and idler with the pivot bolt.
Torque: 34.5 N.m (352 kgf.cm, 25 ft.lbf)
c. Check that the idler bracket moves smoothl
y.

Fig. 168: Installing Timing Belt Idler Sub-Assy No.1
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73.INSTALL TIMING BELT
a. Set the No. 1 cylinder to TDC/compression.
1. Turn the hexagon wrench head portion of the camshaft to align the timing marks of the
camshaft timin
g pulleys and timing belt plates.

Fig. 169: Aligning Timing Marks
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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