Lexus SC300 / Lexus SC400. Manual — part 420

Adjusting Shim Selection Chart (Intake)

EM–20

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ENGINE

MECHANICAL

Engine T

une–Up

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ENGINE MECHANICAL

E

n

g

in

e

T

une–up

EM–21

Adjusting Shim Selection Chart (Exhaust)

23. REINSTALL THEFT DETERRENT HORN

(a) Install the theft deterrent horn with the bolt.
(b) Connect the connector.

24. REINSTALL RH CYLINDER HEAD COVER

(a) Remove any oil packing (FIPG) material.
(b) Apply seal packing to the cylinder head as shown in the

illustration.

Seal packing: Part No. 08826–00080 or equivalent

(c) Install the gasket to the cylinder head cover.
(d) Install the seal washer to the mounting bolt.
(e) Install the cylinder head cover with the eight bolts.

Torque: 5.9 N

⋅

m (60 kgf

⋅

cm, 52 in.

⋅

lbf)

(g) Connect the four high–tension cords to the spark plugs.
(h) Install the rear and front high–tension cord clamps with

the two bolts.

HINT: Place the front and rear ends of the front high–tension
cord clamp on the rear high–tension cord clamp and lower
high–tension cord cover.
(i) Fit the high–tension cords to the high–tension cord

clamps. (See page

IG–16

)

25. REINSTALL LH CYLINDER HEAD COVER

(a) Remove any oil packing (FIPG) material.
(b) Apply seal packing to the cylinder head as shown in the

illustration.

Seal packing: Part No. 08826–00080 or equivalent

EM–22

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ENGINE MECHANICAL

Engine Tune–Up

(c) Install the gasket to the cylinder head cover.
(d) Install the seal washer to the mounting bolt.
(e) Install the cylinder head cover with the eight bolts.

Torque: 5.9 N

⋅

m (60 kgf

⋅

cm, 52 in.

⋅

lbf)

(f) Connect the two engine wire connectors.
(g) Connect the four injector connectors.

(h) Install the engine wire to the two wire clamps on the

delivery pipe.

(i)

Connect the four high–tension cords to the spark plugs.

(j)

Install the rear and front high–tension cord clamps with
the two bolts.

HINT: Place the front and rear ends of the front high–tension
cord clamp on the rear high–tension cord clamp and lower
high–tension cord cover.
(k) Fit the high–tension cords to the high–tension cord

clamps. (See page

IG–16

)

26. REINSTALL THROTTLE BODY

(a) Connect the following hoses:

(1)

PCV hose from throttle body

(2)

Water by–pass hose from throttle body

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ENGINE MECHANICAL

Engine Tune–Up

EM–23