Lexus SC300 / Lexus SC400. Manual — part 590

6.

INSTALL CONNECTING ROD CAPS

A.

Place connecting rod cap on connecting rod
(a) Match the numbered connecting rod cap with the

connecting rod.

(b) Align the pin groove of the connecting rod cap with the

pins of the connecting rod, and install the connecting rod
cap.

(c) Check that the outside mark on the connecting rod cap

is facing in correct direction.

B.

Install connecting rod cap bolts
HINT:

•

The connecting rod cap bolts are tightened in two
progressive steps (steps (b) and (d)).

•

If any one of the connecting rod bolts is broken or
deformed, replace it.

(a) Apply a light of engine oil on the threads and under the

heads of the connecting rod cap bolts.

(b) Using SST, install and alternately tighten the two

connecting rod cap bolts in several passes.

SST 09011–38121

Torque: 25 N

⋅

m (250 kgf

⋅

cm, 18 ft

⋅

lbf)

If any one of the connecting rod cap bolts does not meet the
torque specification, replace the connecting rod cap bolt.
(c) Mark the front of the connecting rod cap bolt with paint.

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ENGINE MECHANICAL

Cylinder Block

EM–159

(d) Retighten the connecting rod cap bolts 905 in the

numerical order shown.

(e) Check

that the painted mark is now at a 905 angle to the

front.

(f) Check that the crankshaft turns smoothly.
(g) Check the connecting rod thrust clearance.

(See step 2 on page

EM–135

)

7.

INSTALL REAR OIL SEAL RETAINER
(a) Remove any old packing (FIPG) material and be careful

not to drop any oil on the contact surfaces of the retainer
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 retainer as shown in the

illustration.

Seal packing: Part No.08826–00080 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 3 minutes of
application. Otherwise the material must be removed
and reapplied.

•

Immediately remove nozzle from the tube and reinstall
cap.

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

(d) Install the retainer with the seven bolts.

Torque: 7.8 N

⋅

m (80 kgf

⋅

cm, 69 in.

⋅

lbf)

EM–160

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ENGINE MECHANICAL

Cylinder Block

POST ASSEMBLY

(See Components on page

EM–131

)

1.

INSTALL WATER SEAL PLATE
(a) Remove any old packing (FIPG) material and be careful

not to drop any oil on the contact surfaces of the seal
plate 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 seal plate 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 seal plate with the two nuts.

Torque: 14 N

⋅

m (145 kgf

⋅

cm, 10 ft

⋅

lbf)

2. INSTALL

ALTERNATOR

BRACKET

Install the bracket with the bolt.

Torque: 18 N

⋅

m (185 kgf

⋅

cm, 13 ft

⋅

lbf)

3.

INSTALL OIL PUMP
(a) Remove any old packing (FIPG) material and be careful

not to drop any oil on the contact surfaces of the oil
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 oil pump as shown in the

illustration.

Seal packing: Part No.08826–00080 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 3 minutes of
application. Otherwise the material must be
removed and reapplied.

•

Immediately remove nozzle from the tube and
reinstall cap.

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ENGINE MECHANICAL

Cylinder Block

EM–161

(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.

EM–162

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ENGINE MECHANICAL

Cylinder Block