2003 LEXUS LS430 Manifold gasket

Fig. 291: Removing Cylinder Head Gasket No.2
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
17.INSTALL CYLINDER HEAD GASKET NO.2
a. Place a new cylinder head gasket in position on the cylinder block.
b. The rear side of the cylinder head gasket has marks so that the RH and LH banks can be
distinguished. A "3L" mark is on the LH bank's gasket.
18.INSTALL CYLINDER HEAD LH
a. Check that the cut part of the crankshaft timing pulley is in the position shown in the illustration,
and that the piston is below the TDC of compression.
b. Install the cylinder head together with the manifold RH to the cylinder block.
c. Apply a light coat of engine oil on the threads and under the head of the cylinder head bolts.
d. Put the washer on the bolt, and insert the bolt with washer into the c
ylinder head.

Fig. 298: Installing Water By-Pass Joint RR
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
21.INSTALL WATER INLET HOUSING
a. Install a new O-ring to the inlet housing.
b. Apply soapy water to the O-ring.
c. Apply seal packing to the sealing groove of the inlet housing as shown in the illustration.
Seal packing: Part No. 08826-00100 or equivalent
<002c0051005600570044004f004f00030044000300510052005d005d004f004800030057004b004400570003004b00440056000300450048004800510003004600580057000300570052000300440003001500030057005200030016000300500050000300
0b001300110013001b00030057005200030013001100140015[ in.) opening.
Parts must be assembled within 3 minutes of application. Otherwise the material must be
removed and reapplied.
Install the water inlet and housing assembly with the 2 bolts. Alternately tighten the bolts.
Torque: 18 N.m (184 kgf.cm, 13 ft.lbf)
22.INSTALL WATER BYPASS JOINT RR
a. Install 2 new gaskets and the water bypass joint with the 4 nuts. Alternately tighten the nuts.
Torque: 18 N.m (184 kgf.cm, 13 ft.lbf)
23.INSTALL INTAKE MANIFOLD ASSY
a. Place 2 new gaskets on the cylinder heads with the white mark facing outward.

Fig. 299: Placing Gaskets On Cylinder Heads
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
b. Install the upper and lower intake manifold assembly with the 6 bolts and 4 nuts.
Torque: 18 N.m (184 kgf.cm, 13 ft.lbf)

gasoline to 2 new O-rings and install them to the injector's grooves.
c. To install the fuel injector into the fuel delivery pipe, push the fuel injector while twisting it back
and forth. Install the 4 injectors.
d. Check that the injector can rotate smoothly.
17.INSTALL FUEL DELIVERY PIPE SUB-ASSY NO.2
a. Install the injector (with delivery pipe) to the intake manifold.
b. Under the above condition, turn the injector both ways by approximately 45 degrees.
c. Inserting a spacer in between, install the delivery pipe (with injector) with the 2 nuts.
Torque: 21 N.m (214 kgf.cm, 15 ft.lbf)
18.INSTALL FUEL DELIVERY PIPE SUB-ASSY
a. Install the injector (with delivery pipe) to the intake manifold.
b. Under the above condition, turn the injector both ways by approximately 45 degrees.
c. Inserting a spacer in between, install the delivery pipe (with injector) with the 2 nuts.
Torque: 21 N.m (214 kgf.cm, 15 ft.lbf)
19.INSTALL FUEL PRESSURE PULSATION DAMPER ASSY
a. Inserting 2 new gaskets in between, install the fuel main hose to the fuel pressure pulsation damper.
Torque: 39 N.m (400 kgf.cm, 29 ft.lbf)

Fig. 9: Disconnecting Fuel Pipe Sub-Assy No. 2
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
13.REMOVE INTAKE MANIFOLD
a. Remove the bolt and the water by-pass pipe No. 1 and No. 2.
b. Disconnect the vacuum hose for the brake booster.
c. Disconnect the air hose for the power steering.
d. Disconnect the ventilation hose.
e. Disconnect the injector connector.
f. Remove the 6 bolts, 4 nuts and intake manifold.
14.REMOVE INTAKE MANIFOLD TO HEAD GASKET NO. 1
15.INSTALL INTAKE MANIFOLD TO HEAD GASKET NO. 1
a. Install 2 new gaskets to the cylinder head.
HINT:
The white-painted area on each gasket should face up as shown in the illustration.

Fig. 10: Installing Intake Manifold To Head Gasket No. 1
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
16.INSTALL INTAKE MANIFOLD
a. Install the intake manifold with the 6 bolts and 4 nuts.
Torque: 18 N.m (184 kgf.cm, 13 ft.lbf)
b. Connect the injector connector.
c. Connect the ventilation hose.
d. Connect the air hose for the power steering.
e. Connect the vacuum hose for the brake booster.
f. Install the water by-pass pipe No. 1 and No. 2 with the bolt.
17.CONNECT FUEL PIPE SUB-ASSY NO. 2
a. Using SST, install the fuel main hose.
SST 09023-38401