Lexus SC300 / Lexus SC400. Manual — part 635

•

Align the spline of the ignition coil with the spline of
the holder, and slide on the holder.

NOTICE: Check that holder is correctly installed to the
grommet and ignition coil as shown in the illustration.

•

Check that the lock claw of the holder is engaged
by lightly pulling the holder.

5.

INSTALL RH NO.3 TIMING BELT COVER
(a) Install the three gaskets to the timing belt cover.
(b) Fit portion A of the timing belt cover, matching it with the

lower high–tension cord cover.

(c) Install the timing belt cover with the three bolts.

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IGNITION SYSTEM

High–Tension Cords and Cord Clamps

IG–17

6.

INSTALL VSV FOR EVAP SYSTEM
Install the VSV with the two bolts.

7.

INSTALL LH NO.3 TIMING BELT COVER
(a) Install the three gaskets to the timing belt cover.
(b) Install the cord grommet to the high–tension cord.
(c) Install the cord grommet to the timing belt cover.
(d) Fit portion A of the timing belt cover, matching it with the

lower high–tension cord cover.

(e) Install the timing belt cover with the four bolts.

8.

INSTALL RH ENGINE WIRE COVER
(a) Fit portions A and B of the engine wire cover, matching

them with the lower high–tension cord cover and No.3
timing belt cover.

(d) Install the engine wire cover with the bolt.

9.

INSTALL LH ENGINE WIRE COVER
(a) Connect portions A and B engine wire cover to the wire

brackets.

(b) Set the VSV (for fuel pressure control system) wire in

original position.

(c) Fit portions C and D of the engine wire cover, matching

them with the lower high–tension cord cover and No.3
timing belt cover.

(d) Install the engine wire cover with the two bolts.

10. INSTALL UPPER HIGH–TENSION CORD COVER

(a) Fit portion A of the upper high–tension cover, matching

it with the top of the lower high–tension cord cover.

IG–18

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IGNITION SYSTEM

High–Tension Cords and Cord Clamps

(b) Push the front side of the high–tension cord cover, and

connect the front side claw groove of the upper
high–tension cord cover to the claw of the lower
high–tension cord cover.

(c) Install the upper high–tension cord cover with the two

bolts.

11. INSTALL INTAKE AIR CONNECTOR

(a) Connect the end portions of the intake air connector to

the throttle body and air cleaner hose.

(b) Tighten the two hose clamps.
(c) Install the bolt holding the intake air connector to the

cylinder head cover.

(d) Connect the following hoses:

(1) Air hose to ISC valve
(2) Air

hose (from PS air control valve) to intake air con-

nector

12. CONNECT CABLE TO NEGATIVE TERMINAL OF

BATTERY

13. CHECK THAT ENGINE STARTS

–

IGNITION SYSTEM

High–Tension Cords and Cord Clamps

IG–19

IGNITION COILS

COMPONENTS FOR REMOVAL AND
INSTALLATION

IG–20

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IGNITION SYSTEM

Ignition Coils