Lexus SC300 / Lexus SC400. Manual — part 407

(c) Place a new O–ring in position on the cylinder block.

(d) Engage the spline teeth of the oil pump drive gear with

the large teeth of the crankshaft, and slide the oil pump.

(e) Install the oil pump with the eight bolts.

Torque:

12 mm head 16 N

⋅

m (160 kgf

⋅

cm, 12 ft

⋅

lbf)

14 mm head 30 N

⋅

m (310 kgf

⋅

cm, 22 ft

⋅

lbf)

HINT: Each bolt length is indicated in the illustration.
Bolt length:

A 50 mm (1.97 in.) for 12 mm head
B 106 mm (4.17 in.) for 12 mm head
C 30 mm (1.18 in.) for 12 mm head
D 40 mm (1.57 in.) for 14 mm head

4.

INSTALL NO. 1 OIL PAN AND NO. 2 OIL PANS
(See steps 4 to 9 on pages

LU–16

to 19)

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.

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–

ENGINE MECHANICAL

Cylinder Block

(b) Apply seal packing to the sealing groove of 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 five bolts, two stud bolts

and nut.

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 two bolts.

(b) Install the wire cover with the three bolts.
(c) Connect the following connectors:

(1) Oil level sensor connector
(2) Oil pressure switch connector

7. INSTALL

WATER

BY–PASS

PIPE

(a) Install a new O–ring to the by–pass pipe.
(b) Apply soapy water to the O–ring.
(c) Pull in the by–pass pipe end into the pipe hole of the

water pump.

(d) Install the water by–pass pipe with the two bolts.

Torque: 18 N

⋅

m (185 kgf

⋅

cm, 13 ft

⋅

lbf)

–

ENGINE MECHANICAL

Cylinder Block

EM–163

8.

INSTALL KNOCK SENSORS
(a) Using SST, install the two knock sensors.
SST 09816–30010

Torque: 44 N

⋅

m (450 kgf

⋅

cm, 33 ft

⋅

lbf)

(b) Connect the two knock sensor connectors.

9. INSTALL

STARTER

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

(d) Install the starter with the two bolts.

Torque: 39 N

⋅

m (400 kgf

⋅

cm, 29 ft

⋅

lbf)

10. INSTALL RH ENGINE MOUNTING BRACKET

Install the mounting bracket with the four 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 four bolts.

Torque: 37 N

⋅

m (380 kgf

⋅

cm, 27 ft

⋅

lbf)

HINT: The LH mounting bracket is marked with ”L”.
(b) Install the engine wire to the mounting bracket with the

bolt.

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–

ENGINE MECHANICAL

Cylinder Block

12. INSTALL CYLINDER HEADS

(See pages

EM–92

to 115)

13. INSTALL TIMING PULLEYS AND BELT

(See pages

EM–48

to 57)

14. REMOVE ENGINE STAND FROM ENGINE

15. INSTALL DRIVE PLATE

(a) Apply adhesive to two or three threads of the mounting

bolt end.

Adhesive: Part No.08833–00070, THREE BOND 1324 or equiva-

lent

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

the crankshaft.

(c) Install and uniformly tighten the eight mounting bolts in

several passes in the sequence shown.

Torque: 98 N

⋅

m (1,000 kgf

⋅

cm, 72 ft

⋅

lbf)

ASSEMBLY OF ENGINE AND
TRANSMISSION

(See Components on page

EM–129

)

1.

ASSEMBLE ENGINE AND TRANSMISSION
(See AT section)

2.

INSTALL OIL COOLER PIPE
(a) Temporarily install the two mounting bolts.
(b) Connect the two oil cooler pipes to the unions on the

transmission. Tighten the union nuts.

Torque: 34 N

⋅

m (350 kgf

⋅

cm, 25 ft

⋅

lbf)

–

ENGINE MECHANICAL

Cylinder Block

EM–165