Lexus SC300 / Lexus SC400. Service manual — part 357

9.

REMOVE LH IGNITION COIL

(a) Disconnect the following connectors and cord:

(1) Ignition coil connector
(2) Noise filter connector
(3) High–tension

cord

(b) Remove the 2 bolts and ignition coil.

10. REMOVE UPPER HIGH–TENSION CORD COVER
(a) Remove the 2 bolts.
(b) Disconnect

the front side claw groove of the upper cord cover

from the claw of lower cord cover, and remove the upper cord
cover.

11. REMOVE RH ENGINE WIRE COVER

Remove the bolt and engine wire cover.

12. REMOVE LH ENGINE WIRE COVER

Remove the 2 bolts and engine wire cover.

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EG–49

20. REMOVE DISTRIBUTOR CAPS

Loosen the 3 bolts, and remove the distributor cap.
Remove the 2 distributor caps.
HINT: Arrange the distributor caps (RH side and LH side).

21. REMOVE

DISTRIBUTOR

ROTORS

Loosen the 2 bolts, and remove the distributor rotor.
Remove the 2 distributor rotors.
HINT: Arrange the distributor rotors (RH side and LH side).

22. REMOVE

DISTRIBUTOR

HOUSINGS

(a) RH Distributor Housing:

Disconnect the camshaft position sensor connector.

(b) Remove the 3 bolts and distributor housing. Remove the 2

distributor housings.

23. REMOVE GENERATOR
(a) Disconnect the generator connector.
(b) Remove the cap and nut, and disconnect the generator wire.
(c) Remove the bolt, and disconnect the transmission oil cooler

pipe bracket from the generator.

(d) Remove the nut and generator.

24. REMOVE DRIVE BELT TENSIONER

Remove the bolt, 2 nuts and belt tensioner.

EG–52

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ENGINE MECHANICAL

25. REMOVE SPARK PLUGS

Using a 16 mm plug wrench, remove the 8 spark plugs.

26. IF RE–USING TIMING BELT, CHECK INSTALLATION

MARKS ON TIMING BELT
Check that there are 4 installation marks on the timing belt by
turning the crankshaft pulley as shown in the illustration.
HINT: If the installation marks have disappeared, place a new
installation mark on the timing belt before removing each
part.

27. SET NO.1 CYLINDER TO TDC/COMPRESSION
(a) Turn the crankshaft pulley and align its groove with timing

mark “0” of the No.1 timing belt cover.

(b) Check that the timing marks of the camshaft timing pulleys

and timing belt rear plates aligned.
If not, turn the crankshaft 1 revolution (360

°

).

28. REMOVE TIMING BELT TENSIONER

HINT:

•

When re–using timing belt:

If the installation marks have disappeared, before re-
move the timing belt, place new installation marks on
the timing belt to match the timing marks of the camshaft
timing pulleys, and place the a new installation mark on
the timing belt to match the end of the hydraulic pump.

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EG–53

•

When replacing timing belt tensioner only:

To avoid meshing of the timing pulley and timing belt,
secure one of them with string. And place matchmarks
on the timing belt and RH camshaft timing pulley.

Alternately loosen the 2 bolts, and remove them, the belt ten-
sioner and dust boot.

29. DISCONNECT TIMING BELT FROM CAMSHAFT TIMING

PULLEYS

(a) Using

SST,

loosen the tension spring between the LH and RH

camshaft timing pulleys by slightly turning the LH camshaft
timing pulley clockwise.
SST 09278–54012

(b) Disconnect the timing belt from the camshaft timing pulleys.

30. REMOVE CAMSHAFT TIMING PULLEYS

Using SST, remove the bolt and timing pulley. Remove the 2
timing pulleys.
SST 09278–54012

EG–54

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