Lexus SC300 / Lexus SC400. Manual - part 391

4. 

INSTALL NO.1 AND NO.2 OIL PANS
(See steps 1 to 7 on pages 

EG–509

 to 511)

5. INSTALL 

WATER 

PUMP

(a)  Remove any old packing (FIPG) material and be careful not

to drop any oil on the contact surfaces of the water pump and
cylinder block.

•

Using a razor blade and gasket scraper, remove all the
old packing (FIPG) material from the gasket surfaces
and sealing groove.

•

Thoroughly clean all components to remove all the
loose material.

•

Using a non–residue solvent, clean both sealing
surfaces.

(b)  Apply seal packing to the water pump as shown in the

illustration.

Seal packing:

Part No. 08826–00100 or equivalent

•

Install a nozzle that has been cut to a 2 – 3 mm
(0.08–0.12 in.) opening.

•

Parts must be  assembled within 5 minutes of
application. Otherwise the material must be removed
and reapplied.

•

Immediately remove nozzle from the tube and reinstall
cap.

(c)  Install the water pump with the nut, 5 bolts and 2 stud bolts.

Uniformly tighten the nut, bolts and stud bolts in several
passes.

Torque: 18 N

⋅

m (185 kgf

⋅

cm, 13 ft

⋅

lbf)

HINT: Use bolts 30 mm (1.18 in.) in length.

6. 

INSTALL ENGINE WIRE

(a) Install 

the engine wire to the LH side of the cylinder block with

the 2 bolts.

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ENGINE MECHANICAL

EG–187

(b)  Install the engine wire cover with the 3 bolts.
(c)  Connect the following connector:

•

Crankshaft position sensor connector

•

Oil pressure switch connector

•

Oil level sensor connector

7. INSTALL 

WATER 

BYPASS 

PIPE

(a)  Install a new O–ring to the water bypass pipe.
(b)  Apply soapy water to the O–ring.
(c)  Push the water bypass pipe end into the pipe hole of the

water pump.

(d)  Install the water bypass pipe with the 2 bolts.

Torque: 18 N

⋅

m (185 kgf

⋅

cm, 13 ft

⋅

lbf)

8. 

INSTALL KNOCK SENSORS

(a)  Using SST, install the 2 knock sensors.

SST 09816–30010

Torque: 44 N

⋅

m (450 kgf

⋅

cm, 33 ft

⋅

lbf)

(b)  Connect the 2 knock sensor connectors.

9. INSTALL 

STARTER

(a)  Install the engine wire clamp to the bracket on the starter.
(b)  Connect the starter wire with the nut.
(c)  Connect the starter connector.

(d)  Install the starter with the 2 bolts.

Torque: 39 N

⋅

m (400 kgf

⋅

cm, 29 ft

⋅

lbf)

EG–188

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ENGINE MECHANICAL

10.  INSTALL RH ENGINE MOUNTING BRACKET

Install the mounting bracket with the 4 bolts.

Torque: 37 N

⋅

m (380 kgf

⋅

cm, 27 ft

⋅

lbf)

HINT: The RH mounting bracket is marked with “R”.

11.  INSTALL LH ENGINE MOUNTING BRACKET
(a)  Install the mounting bracket with the 4 bolts.

HINT: The LH mounting bracket is marked with “L”

Torque: 37 N

⋅

m, (380 kgf

⋅

cm, 27 ft

⋅

lbf)

(b)  Install the engine with to the mounting bracket with the bolt.

12.  INSTALL CYLINDER HEADS

(See pages 

EG–109

 to 136)

13.  INSTALL TIMING BELT AND PULLEYS

(See pages 

EG–60

 to 72)

14.  DISCONNECT ENGINE FROM ENGINE STAND

15.  INSTALL DRIVE PLATE
(a)  Apply adhesive to 2 or 3 threads of the bolt end.

Adhesive:

Part No. 08833–00070, THREE BOND 1324 or equivalent

(b)  Install the front spacer, drive plate and rear plate on the

crankshaft.

(c)  Install and uniformly tighten the 8 bolts in several passes, in

the sequence shown.

Torque: 98 N

⋅

m (1,000 kgf

⋅

cm, 72 ft

⋅

lbf)

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EG–189

ENGINE & TRANSMISSION ASSEMBLY

EG34U–01

(See Components for Engine & Transmission Separation and

Assembly)

1. 

INSTALL TRANSMISSION TO ENGINE
(See page 

AT–23

)

2. 

CONNECT ENGINE WIRE

(a)  Connect the following parts:

(1)  O/D direct clutch speed sensor connector
(2)  No.1 VSS connector for speedometer
(3)  No.2 VSS connector for ECM
(4)  PNP switch connector
(5) Solenoid 

connector

(b)  Install the 5 wire clamps to the brackets on the transmission.

EG–190

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ENGINE MECHANICAL