Lexus SC300 / Lexus SC400. Service manual - part 396

COMPONENTS FOR REMOVAL AND
INSTALLATION OF ENGINE WITH
TRANSMISSION (Cont’d)

REMOVAL OF ENGINE WITH
TRANSMISSION

1. REMOVE 

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. 

REMOVE ENGINE UNDER COVER

3. 

DRAIN ENGINE COOLANT (See page 

CO–6

)

4. 

DRAIN ENGINE OIL

5. REMOVE 

HOOD

6. 

REMOVE DRIVE BELT
Loosen the drive belt tension by turning the drive belt tension-
er counterclockwise, and remove the drive belt.
HINT: The pulley bolt for the belt tensioner has a left–hand
thread.

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ENGINE MECHANICAL

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7. 

REMOVE THROTTLE BODY COVER
(a)  Remove the mounting cap nut.
(b)  Loosen the two bolts, and remove the throttle body

cover.

8.  DISCONNECT CONTROL CABLES FROM THROTTLE

BODY
Disconnect the following cables:

(1)

Accelerator cable

(2)

A/T throttle cable

(3)

(w/ Cruise Control System)
Cruise control actuator cable

9. 

REMOVE AIR CLEANER AND AIR FLOW METER
(a)  Disconnect the air flow meter connector.
(b)  Loosen the hose clamp holding the air cleaner hose to

the intake air connector.

(c)  Remove the four mounting bolts.
(d)  Disconnect the air cleaner hose from the intake air

connector.

(e)  Disconnect the air duct from the air cleaner case, and

remove the air cleaner and air flow meter assembly.

10. DISCONNECT VACUUM HOSE (A) (FROM PS AIR

CONTROL VALVE) FROM AIR INTAKE CHAMBER

11.  REMOVE INTAKE AIR CONNECTOR

(a)  Disconnect the following hose:

(1)

Air hose from ISC valve

(2)

Air hose (from PS air control valve) from intake air
connector

(b)  Remove the bolt holding the intake air connector to the

cylinder head cover.

(c)  Loosen the hose clamp.
(d)  Disconnect the intake air connector from the throttle

body, and remove the intake air connector.

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ENGINE MECHANICAL

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12. REMOVE RADIATOR RESERVOIR TANK

(a)  Disconnect the coolant level sensor connector.
(b)  Disconnect the following hoses:

(1)  Reservoir hose to water inlet housing
(2)  Reservoir hose to radiator

(c)  Remove the two bolts and reservoir tank bracket.
(d)  Disconnect the reservoir tank from the reservoir tank

bracket, and remove the reservoir tank.

13. REMOVE 

RADIATOR

(a)  Disconnect the water temperature sensor connector.
(b) Disconnect the wire clamp (for water temperature

sensor) from the radiator fan shrould.

(c)  Disconnect the following hoses:

(1)  Two oil cooler hoses (for cooling fan) from pipes

(2)  Two radiator hoses

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ENGINE MECHANICAL

Cylinder Block

(3)  Two oil cooler hoses (for A/T) from radiator Plug the

hose ends.

(4)  Suction hose from hydraulic pump
(5)  Pressure hose from hydraulic pump

(c) Remove 

the 

two 

bolts, 

screw 

and 

upper radiator

support. Remove the two upper radiator supports.

(d)  Slightly lift the radiator, and disconnect the two oil cooler

hoses (for cooling fan) from the hose clamp on the
radiator fan shrould.

(e)  Remove the radiator.

14.  DISCONNECT IGNITER CONNECTORS

(a)  Disconnect the two igniter connectors.
(b)  Disconnect the wire clamp from the body.

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ENGINE MECHANICAL

Cylinder Block

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