2003 LEXUS LS430 engine

Fig. 161: Pushing Camshaft Setting Oil Seal
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
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

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
87.INSTALL OIL FILLER CAP SUB-ASSY
88.INSTALL SPARK PLUG
REPLACEMENT
1.DISCONNECT BATTERY NEGATIVE TERMINAL
2.REMOVE AIR CLEANER INLET NO.1
3.DRAIN ENGINE COOLANT
4.REMOVE V-BANK COVER
5.REMOVE INTAKE AIR CONNECTOR PIPE
6.REMOVE ENGINE UNDER COVER NO.1
7.DISCONNECT RADIATOR HOSE NO.1
8.DISCONNECT RADIATOR HOSE NO.2
9.DISCONNECT OIL COOLER INLET TUBE NO.1
10.DISCONNECT OIL COOLER OUTLET TUBE NO.1
11.REMOVE AIR CLEANER ASSY
12.REMOVE RADIATOR ASSY (See REPLACEMENT

13.REMOVE FAN AND GENERATOR V BELT (See REPLACEMENT
)
14.REMOVE VANE PUMP ASSY
a. Remove the 2 bolts, nut and pump.
HINT:
Pump should be removed with the hoses connected and then hang with a rope or wire on the body's side.
15.REMOVE GENERATOR ASSY (See REPLACEMENT
)
16.DISCONNECT COMPRESSOR AND MAGNETIC CLUTCH
HINT:
The cooler compressor with the magnetic clutch should be removed with the low-pressure and high-
pressure hoses connected and then hang with a rope or wire on the body's side.
17.REMOVE TIMING CHAIN OR BELT COVER NO.2
a. Disconnect the 2 PS air hoses from the clamp on the cover.
b. Remove the cap nut, 3 bolts, cover and gasket.

Fig. 187: Disconnecting Water By-Pass Hoses
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
c. Disconnect the engine wire from the 2 wire clamps.
d. Disconnect the camshaft position sensor connector.
e. Disconnect the camshaft position sensor wire from the wire clamp on the cover.
f. Remove the wire grommet from the cover.
g. Remove the 4 bolts.
h. Disconnect the cover from the timing plate and camshaft bearing cap.
i. Disconnect the wire clamp for the sensor from the cover.
j. Remove the connector holder from the sensor connector.
k. Remove the cover and gasket.
19.REMOVE TIMING BELT COVER SUB-ASSY NO.2
a. Remove the 2 bolts and timing belt cover.
20.REMOVE V-RIBBED BELT TENSIONER ASSY
a. Remove the bolt, 2 nuts and belt tensioner.

f. Connect the sensor connector.
g. Install the sensor wire to the wire clamp on the cover.
h. Install the engine wire to the 2 wire clamps on the cover.
Fig. 210: 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)

46.INSTALL OIL COOLER OUTLET TUBE NO.1
47.INSTALL OIL COOLER INLET TUBE NO.
48.INSTALL AIR CLEANER INLET NO.1
Torque: 5.0 N.m (51 kgf.cm, 44 in.lbf)
49.INSTALL INTAKE AIR CONNECTOR PIPE
Torque: 5.0 N.m (51 kgf.cm, 44 in.lbf)
50.INSTALL V-BANK COVER
Torque: 5.0 N.m (51 kgf.cm, 44 in.lbf)
51.REFILL ENGINE COOLANT (See REPLACEMENT
)
52.CHECK FOR ENGINE COOLANT LEAKS (See ON
-VEHICLE INSPECTION )
53.INSTALL ENGINE UNDER COVER NO.1
54.CONNECT BATTERY NEGATIVE TERMINAL
REPLACEMENT
1.REMOVE TIMING BELT (See REPLACEMENT
)
2.REMOVE CYLINDER HEAD COVER SUB-ASSY (See REPLACEMENT
)
3.PISTON & VALVE BREAK PREVENT WORK
a. Turn the crankshaft timing pulley counterclockwise by 45° and match the cut part with the
illustrated position.
HINT:
When the No. 1 cylinder is positioned at 45° BTDC, the valve and piston do not interfere with each other
even when the valve is fully open.

Fig. 232: Installing Bolts Using SST
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
1. Apply engine oil to the cam and gear of the camshaft and also the journal of the cylinder head.
2. Align the timing marks (1 dot mark each) of the camshaft drive and driven main gears, and place
the intake and exhaust camshafts.
3. Set the timing mark (1 dot mark each) of the camshaft drive and driven main gears at an angle of
approximatel
y 10°.

Fig. 239: Identifying Bearing Cap Bolts
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
11. Install 4 new seal washers to the bearing cap bolts (1 to 4).
12. Apply a light coat of engine oil on the threads and under the heads of the bearing cap bolts (5 to
22).
13. Install the oil feed pipe with the 22 bearing cap bolts.
14. Uniformly tighten the 22 bearing cap bolts in several passes in the sequence shown in the
illustration.
Torque:
<001a0011001800030031001100500003000b001a001a0003004e004a0049001100460050000f0003001900190003004c005100110011004f00450049000c0003004900520055000300450052004f0057005600030015001400030044005100470003001500
15[
16 N.m (163 kgf.cm, 12 ft.lbf) for others

Fig. 263: Applying Seal Packing To Housing Plug
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
a. Apply engine oil to the cam and gear of the camshaft and also the journal of the cylinder head.
b. Align the timing marks (2 dot marks each) of the camshaft drive and driven main gears, and place
the intake and exhaust camshafts.
c. Set the timing mark (2 dot marks each) of the camshaft drive and driven main gears at an angle of
approximatel
y 10°.