Lexus RX300 (MCU15). Service manual - part 449

A05432

A05424

A05423

A05427

EM–80

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ENGINE MECHANICAL

ENGINE UNIT

LEXUS RX300   (RM785E)

(c)

Remove the 4 bolts holding the transaxle to the LH engine
mounting insulator.

(d)

Remove the nut holding the rear engine mounting bracket
to the rear engine mounting insulator.

(e)

Remove the front frame assembly.

51.

REMOVE FRONT ENGINE MOUNTING INSULATOR
FROM ENGINE

Remove the 4 bolts and mounting insulator.

52.

REMOVE REAR ENGINE MOUNTING BRACKET
FROM ENGINE

Remove the 4 bolts and the mounting bracket.
53.

SEPARATE ENGINE AND TRANSAXLE 
(See page AX–31)

EM0M5–04

A05430

A05600

Ohmmeter

Continuity

A05601

Ohmmeter

No Continuity

A05602

Air

E

G

E

A05603

Air

E

G

E

F

Battery

–

ENGINE MECHANICAL

ENGINE UNIT

EM–81

LEXUS RX300   (RM785E)

INSPECTION

1.

INSPECT FRONT ENGINE INSULATOR

(a)

Using MITYVAC (Hand–Held Vacuum Pump), apply vac-
uum of 80 kPa (600 mmHg, 25 in.Hg) and allow it to stand
for 1 minutes.

(b)

Check that there is no change in the needle movement.

(c)

Check that there is no fluid leakage caused by a break of
a lower diaphragm.

If the operation is not as specified, replace the insulator.

2.

INSPECT VSV  FOR ACTIVE CONTROL ENGINE
MOUNT

(a)

Inspect the VSV for open circuit.
Using an ohmmeter, check that there is continuity be-
tween the terminals.
Resistance: 18 – 22 Ω at 20°C (68°F)

If there is no continuity, replace the VSV.

(b)

Inspect VSV for ground.
Using an ohmmeter, check that there is no continuity be-
tween each terminal and the body.

If there is continuity, replace the VSV.

(c)

Inspect VSV operation.
(1)

Check that air flows from port G to port E.

(2)

Apply battery positive voltage across the terminals.

(3)

Check that air flows from port F to port E.

If operation is not as specified, replace the VSV.
3.

INSPECT VACUUM TANK
(See page FI–53)

A05427

EM1KX–01

A05423

A05424

A05432

A05426

EM–82

–

ENGINE MECHANICAL

ENGINE UNIT

LEXUS RX300   (RM785E)

INSTALLATION

1.

ASSEMBLE ENGINE AND TRANSAXLE 
(See page AX–33)

2.

INSTALL REAR ENGINE MOUNTING BRACKET

Install the mounting bracket with the 4 bolts.

Torque: 64 N·m (650 kgf·cm, 47 ft·lbf)

3.

INSTALL FRONT ENGINE MOUNTING INSULATOR

Install the mounting insulator with the 4 bolts.

Torque: 64 N·m (650 kgf·cm, 47 ft·lbf)

4.

INSTALL FRONT FRAME ASSEMBLY

(a)

Connect the rear engine mounting bracket with the nut.
Torque: 87 N·m (890 kgf·cm, 64 ft·lbf)

(b)

Connect the LH engine mounting insulator with the 4
bolts.
Torque: 64 N·m (650 kgf·cm, 47 ft·lbf)

(c)

Install the engine mounting absorber with the 4 bolts.
Torque: 48 N·m (490 kgf·cm, 35 ft·lbf)

A05425

A05429

A05428

P18775

A05422

Lift

–

ENGINE MECHANICAL

ENGINE UNIT

EM–83

LEXUS RX300   (RM785E)

(d)

Connect the front engine mounting insulator with the 3
bolts.
Torque: 80 N·m (820 kgf·cm, 59 ft·lbf)

5.

INSTALL PS GEAR ASSEMBLY

(a)

Install the PS gear assembly with the 2 bolts and nut.
Torque: 181 N·m (1,850 kgf·cm, 134 ft·lbf)

(b)

Connect the PS hose to the pipe.

6.

INSTALL FRONT STABILIZER

Install the stabilizer with the 4 bolts.

Torque: 19 N·m (195 kgf·cm, 14 ft·lbf)

7.

INSTALL PS VANE PUMP

(a)

Install the PS vane pump with the 2 bolts.
Torque: 43 N·m (440 kgf·cm, 31 ft·lbf)

(b)

Install the drive belt.

(c)

Connect the PS pressure tube with the 3 bolts.

(d)

Connect the PS oil pressure switch connector.

8.

INSTALL ENGINE TRANSAXLE AND FRONT FRAME
ASSEMBLY IN VEHICLE

(a)

Attach the engine sling device to the engine hangers.

(b)

Lift the engine into the engine compartment.