Lexus SC300 / Lexus SC400. Manual - part 636

REMOVAL OF RH IGNITION COIL

(See Components on page 

IG–20

)

1. 

REMOVE RH ENGINE WIRE COVER
(See steps 1, 3 and 4 on pages 

IG–11

 and 12)

2. 

DISCONNECT HIGH–TENSION CORD
(See step 9 on pages 

IG–13

 and 14)

3. 

DISCONNECT IGNITION COIL CONNECTOR

4. 

REMOVE IGNITION COIL
(a) Remove 

the three bolts, and disconnect the ignition coil.

(b)  Disconnect the cam position sensor connector, and

remove the ignition coil.

REMOVAL OF LH IGNITION COIL

(See Components on page 

IG–20

)

1. 

DISCONNECT CABLE FROM NEGATIVE TERMINAL OF
BATTERY
CAUTION: Work must be started after approx. 20 se-
conds or longer from the time the ignition switch is
turned to the ”LOCK” position and the negative (–) termi-
nal cable is disconnected from the battery.

2. 

DISCONNECT IGNITION COIL CONNECTOR

3. 

DISCONNECT HIGH–TENSION CORD
(See step 9 on pages 

IG–13

 and 14)

4. 

DISCONNECT NOISE FILTER FROM IGNITION COIL
Remove the bolt, and disconnect the noise filter.

5. 

REMOVE IGNITION COIL
Remove the two bolts and ignition coil.

–

 IGNITION SYSTEM

Ignition Coils

IG–21

INSTALLATION OF RH IGNITION COIL

(See Components on page 

IG–20

)

1. 

INSTALL IGNITION COIL
(a)  Install the ignition coil with the three bolts.

(b)  Install the cam position sensor connector to the ignition

coil bracket.

2. 

CONNECT IGNITION COIL CONNECTOR

3. 

CONNECT HIGH–TENSION CORD
(See step 4 on pages 

IG–16

 and 17)

4. 

INSTALL RH ENGINE WIRE COVER
(See steps 8, 10, 12 and 13 on pages 

IG–11

 and 12)

INSTALLATION OF LH IGNITION COIL

(See Components on page 

IG–20

)

1. 

INSTALL IGNITION COIL
Install the ignition coil with the two bolts.

2. 

INSTALL NOISE FILTER TO IGNITION COIL
Install the noise filter with the bolt.

3. 

CONNECT HIGH–TENSION CORD
(See step 4 on pages 

IG–16

 and 17)

4. 

CONNECT IGNITION COIL CONNECTOR

5.  CONNECT CABLE TO NEGATIVE TERMINAL OF

BATTERY

IG–22

–

 IGNITION SYSTEM

Ignition Coils

DISTRIBUTOR

COMPONENTS FOR REMOVAL AND
INSTALLATION

–

 IGNITION SYSTEM

Distributor

IG–23

REMOVAL OF DISTRIBUTOR

(See Components on page 

IG–23

)

1. 

DRAIN ENGINE COOLANT (See page 

CO–6

)

2. 

DISCONNECT RADIATOR HOSE FROM WATER INLET

3. 

REMOVE NO.3 TIMING BELT COVERS
(See steps 1 to 8 on pages 

IG–11

 to 13)

4. 

REMOVE DRIVE BELT IDLER PULLEY
Remove the pulley bolt, cover plate and idler pulley.

5. 

REMOVE RH NO.2 TIMING BELT COVER
(a)  Disconnect the cam position sensor connector from the

ignition coil bracket.

(b) Disconnect 

the 

cam position sensor wire from the clamp

on the timing belt cover.

(c)  Remove the five mounting bolts.
(d)  Disconnect the connector grommet from the timing belt

cover.

(e)  Disconnect the wire clamp from the timing belt cover,

and remove the timing belt cover and four gaskets.

6. 

REMOVE LH NO.2 TIMING BELT COVER
(a) Disconnect 

the 

cam position sensor wire from the clamp

on the timing belt cover.

(b)  Disconnect the cam position sensor connector.
(c)  Remove the three mounting bolts.
(d)  Disconnect the connector grommet from the timing belt

cover, and remove the timing belt cover and two
gaskets.

IG–24

–

 IGNITION SYSTEM

Distributor