Lexus RX300 (MCU15). Manual - part 448

A05419

EM–76

–

ENGINE MECHANICAL

ENGINE UNIT

LEXUS RX300   (RM785E)

11.

DISCONNECT ALTERNATOR WIRE, CONNECTOR
AND CLAMP

12.

DISCONNECT 2 GROUND STRAP CONNECTORS
FROM RH FENDER APRON

13.

DISCONNECT GROUND STRAP FROM LH FENDER
APRON

14.

DISCONNECT NOISE FILTER CONNECTOR ON LH
FENDER APRON

15.

DISCONNECT BATTERY NEGATIVE (–) CABLE

16.

DISCONNECT 2 CONNECTORS FROM ENGINE
ROOM JUNCTION BLOCK

17.

DISCONNECT BRAKE BOOSTER VACUUM HOSE
FROM AIR INTAKE CHAMBER

18.

DISCONNECT HEATER HOSE FROM INTAKE MAN-
IFOLD

19.

DISCONNECT HEATER HOSE FROM WATER INLET
HOUSING

20.

DISCONNECT FUEL INLET HOSE FROM FUEL PIPE

CAUTION:
Perform disconnecting operations of the fuel tube connec-
tor (quick type) after observing the precautions.
(See page FI–1)
21.

DISCONNECT PURGE HOSE FROM PIPE ON EMIS-
SION CONTROL VALVE SET

22.

DISCONNECT 2 VACUUM HOSES FROM VACUUM
TANK FOR ACIS

23.

DISCONNECT UPPER RADIATOR HOSE FROM WA-
TER OUTLET

24.

DISCONNECT LOWER RADIATOR HOSE FROM WA-
TER INLET PIPE

25.

DISCONNECT 2 A/T COOLER HOSES FROM 2 PIPES
ON TRANSAXLE

26.

DISCONNECT ACCELERATOR CABLE FROM
THROTTLE BODY

27.

DISCONNECT ENGINE WIRE FROM CABIN

(a)

Remove the engine ECU. (See page FI–70)

(b)

Remove the 2 nuts holding the engine wire retainer to the
cowl panel.

(c)

Pull out the engine wire.

28.

REMOVE ALTERNATOR FROM ENGINE
(See page CH–6)

29.

REMOVE A/C COMPRESSOR FROM ENGINE
(See page AC–45)

A05689

A05688

A05420

A05692

–

ENGINE MECHANICAL

ENGINE UNIT

EM–77

LEXUS RX300   (RM785E)

30.

DISCONNECT A/T SHIFT CONTROL CABLE FROM
TRANSAXLE

31.

REMOVE NO. 2 FRONT EXHAUST PIPE

(a)

Remove the 2 bolts holding the No. 2 front exhaust pipe
to the WU–TWC.

(b)

Remove the 2 bolts holding the No. 2 front exhaust pipe
to the front exhaust pipe.

(c)

Remove the No. 2 front exhaust pipe and 2 gaskets.

32.

REMOVE FRONT EXHAUST PIPE

(a)

Remove the 2 nuts holding the front exhaust pipe to the
RH exhaust manifold.

(b)

Remove the 2 bolts and 2 springs holding the front ex-
haust pipe to the center exhaust pipe.

(c)

Remove the front exhaust pipe and 2 gaskets.

33.

REMOVE RH FENDER APRON SEAL

34.

DISCONNECT STABILIZER BAR LINKS 
(See page SA–40)

35.

REMOVE DRIVE SHAFTS 
(See page SA–17)

36.

REMOVE FRONT PROPELLER SHAFT
(See page PR–3)

37.

DISCONNECT INTERMEDIATE SHAFT ASSEMBLY
(See page SR–12)

38.

DISCONNECT VSV FROM FRONT ENGINE 
MOUNTING INSULATOR

(a)

Disconnect the vacuum hoses from the front frame as-
sembly.

(b)

Disconnect the VSV connector and clamp.

(c)

Remove the screw and disconnect the VSV.

39.

DISCONNECT PS HOSE FROM PS OIL RESERVOIR

40.

DISCONNECT PS HOSE FROM PS RESERVOIR PIPE

A05691

A05599

Engine
Hanger

A05604

A05690

A05431

Lower

EM–78

–

ENGINE MECHANICAL

ENGINE UNIT

LEXUS RX300   (RM785E)

41.

DISCONNECT A/T OIL COOLER PIPE

Remove the bolt and disconnect the pipe from the front frame
assembly.
42.

DISCONNECT FENDER APRON SEALS

Remove the screws and turn over the front side of the LH and
RH fender liners.

43.

ATTACH ENGINE SLING DEVICE TO ENGINE
HANGERS

(a)

Install the No. 2 engine hanger in the correct direction.
Part No.:
No. 2 engine hanger  12282–20020
Bolt  91642–80825
Torque: 19.5 N·m (200 kgf·cm, 14 ft·lbf)

(b)

Attach the sling device to the engine hangers.

CAUTION:
Do not attempt to hang the engine by hooking the chain to
any other part.
44.

REMOVE ENGINE MOVING CONTROL ROD AND
NO. 2 RH ENGINE MOUNTING BRACKET

Remove the 4 bolts, control rod and mounting bracket.

45.

REMOVE LOWER BRACES

Remove the 8 bolts and 4 lower braces.

46.

REMOVE ENGINE, TRANSAXLE AND FRONT FRAME
ASSEMBLY FROM VEHICLE

Lower the engine out of the vehicle slowly and carefully.
NOTICE:
Make sure the engine is clear of all wiring, hoses and
cables.

A02065

A05428

A05429

A05425

A05426

–

ENGINE MECHANICAL

ENGINE UNIT

EM–79

LEXUS RX300   (RM785E)

47.

DISCONNECT PS VANE PUMP FROM ENGINE

(a)

Disconnect the PS oil pressure switch connector.

(b)

Remove the 3 bolts, and disconnect the PS pressure
tube.

(c)

Loosen the 2 bolts, and remove the drive belt.

(d)

Remove the 2 bolts, and disconnect the PS vane pump
from the engine.

48.

REMOVE FRONT STABILIZER

Remove the 4 bolts and stabilizer.

49.

REMOVE PS GEAR ASSEMBLY

(a)

Disconnect the PS hose from the pipe.

(b)

Remove the 2 bolts, nut and PS gear assembly.

50.

REMOVE FRONT FRAME ASSEMBLY

(a)

Remove the 3 bolts holding the front engine mounting in-
sulator to the front frame assembly.

(b)

Remove the 4 bolts and engine mounting absorber.