Lexus SC300 / Lexus SC400. Manual - part 432

28. INSTALL HIGH–TENSION CORDS, HIGH–TENSION

CORD CLAMP AND LOWER HIGH–TENSION CORD
COVER ASSEMBLY
(a)  Install the lower high–tension cord cover with the bolt.
(b)  Connect the high–tension cord to RH ignition coil.

(c)  Connect the four high–tension cord to the RH spark

plugs.

(d)  Install the RH rear and front high–tension cord clamps

with the two bolts.

HINT: Place the front and rear ends of the front hightension
cord clamp on the rear high–tension cord clamp and lower
high–tension cord cover.

(e)  Connect the four high–tension cord to the LH spark

plugs.

(f)  Install the LH rear and front high–tension cord clamps

with the two bolts.

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

clamp. (See page 

IG–16

)

29.  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.

30.  INSTALL VSV FOR EVAP SYSTEM

Install the VSV with the two bolts.

EM–54

–

ENGINE MECHANICAL

Timing Belt

31.  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.

32.  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.

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

33.  INSTALL LH ENGINE WIRE COVER

(a) Connect 

portions A and B of the engine wire cover to the

wire cover 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.

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

34.  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.

(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.

–

ENGINE MECHANICAL

Timing Belt

EM–55

35.  INSTALL LH IGNITION COIL

(a)  Install the ignition coil with the two bolts.

(b)  Connect the following connectors and cord:

(1)

Ignition coil connector

(2)

Noise filter connector

(3)

High–tension cord

36.  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 
connector

EM–56

–

ENGINE MECHANICAL

Timing Belt

37.  INSTALL A/C COMPRESSOR

(a) Install 

the A/C compressor, 

compressor 

stay 

and

ground cable with the three bolts and nut.

Torque: Bolt 49 N

⋅

m (500 kgf

⋅

cm, 36 ft

⋅

lbf)

Nut 29 N

⋅

m (300 kgf

⋅

cm, 22 ft

⋅

lbf)

(b)  Connect the A/C compressor connector.

38.  INSTALL RADIATOR AND RESERVOIR TANK

(See steps 25 and 26 on pages 

EM–174

 to 175)

39.  INSTALL DRIVE BELT

Install the drive belt by turning the drive belt tensioner coun-
terclockwise.
HINT: The pully bolt for the belt tensioner has a lefthand
thread.

40. INSTALL 

BATTERY

41.  FILL WITH ENGINE COOLANT (See page 

CO–7

)

42.  CHECK IGNITION TIMING (See page 

IG–28

)

Ignition timing:

8–12

°

 BTDC @ idle

(w/ Terminals TE1 and E1 connected)

43.  INSTALL ENGINE UNDER COVER

–

ENGINE MECHANICAL

Timing Belt

EM–57