Infiniti FX35, FX50 (S51). Manual - part 969

EM-176

< REMOVAL AND INSTALLATION >

[VK50VE]

DRIVE BELT AUTO TENSIONER AND IDLER PULLEY

DRIVE BELT AUTO TENSIONER AND IDLER PULLEY

Exploded View

INFOID:0000000005245221

Removal and Installation

INFOID:0000000005245222

Removal

CAUTION:

The complete drive belt auto-tensioner must be replaced as a unit, including the pulley.

1.

Remove drive belts. Refer to 

EM-163, "Exploded View"

.

• Keep auto-tensioner pulley arm locked after drive belt is removed.

2.

Remove drive belt auto-tensioners.
• Keep auto-tensioner pulley arm locked to install or remove auto-tensioner.

CAUTION:

Never loosen the hexagonal part in center of drive belt auto tensioner pulley (Never turn it clock-
wise). If turned clockwise, the complete drive belt auto tensioner must be replaced as a unit,
including the pulley.

3.

Remove idler pulley.

Installation

Installation is the reverse order of removal.

CAUTION:

Never swap the pulley between new and old drive belt auto tensioner.

1.

Auto-tensioner (for alternator, water pump 
and A/C compressor belt)

2.

Idler pulley

3.

Cover

4.

Auto-tensioner (for power steering oil pump 
belt)

Refer to 

GI-4, "Components"

 for symbols in the figure.

JPBIA2073GB

AIR CLEANER AND AIR DUCT

EM-177

< REMOVAL AND INSTALLATION >

[VK50VE]

C

D

E

F

G

H

I

J

K

L

M

A

EM

N

P

O

AIR CLEANER AND AIR DUCT

Exploded View

INFOID:0000000005245223

Removal and Installation

INFOID:0000000005245224

REMOVAL

1.

Remove engine cover and engine room cover (RH and LH). Refer to 

EM-174, "Exploded View"

.

2.

Remove air duct (inlet).

3.

Disconnect mass air flow sensor harness connector.

4.

Disconnect PCV hose.

5.

Remove air cleaner case & mass air flow sensor assembly and air duct by disconnecting their joints.
• Add matching marks, if necessary for easier installation.

6.

Remove mass air flow sensor from air cleaner case, if necessary.

CAUTION:

Handle mass air flow sensor according to the following instructions.

1.

Air cleaner filter

2.

Holder

3.

Air cleaner case (bank 2)

4.

Air duct (inlet)

5.

Grommet

6.

Air cleaner case (bank 1)

7.

Mass air flow sensor (bank 1)

8.

Clamp

9.

PCV hose

10. Air duct (bank 1)

11.

Clamp

12. Air duct (bank 2)

13. PCV hose

14. Mass air flow sensor (bank 2)

A.

To rocker cover (bank 2)

B.

To electric throttle control actuator
(bank 2)

C.

To electric throttle control actuator
(bank 1)

D.

To rocker cover (bank 1)

Refer to 

GI-4, "Components"

 for symbols in the figure.

JPBIA2063GB

EM-178

< REMOVAL AND INSTALLATION >

[VK50VE]

AIR CLEANER AND AIR DUCT

• Never impact mass air flow sensor.
• Never disassemble mass air flow sensor.
• Never touch mass air flow sensor.

INSTALLATION

Note the following item, and install in the reverse order of removal.
• Align marks. Attach each joint. Screw clamps firmly.

Inspection

INFOID:0000000005245225

INSPECTION AFTER REMOVAL

Inspect air duct assembly for crack or tear.
• If damage is found, replace air duct assembly

Clamp tightening torque

 :4.5 N·m (0.46 kg-m, 40 in-lb)

INTAKE MANIFOLD

EM-179

< REMOVAL AND INSTALLATION >

[VK50VE]

C

D

E

F

G

H

I

J

K

L

M

A

EM

N

P

O

INTAKE MANIFOLD

Exploded View

INFOID:0000000005245226

1.

EVAP canister purge control sole-
noid valve

2.

Clamp

3.

EVAP hose

4.

EVAP hose

5.

EVAP hose

6.

EVAP tube

7.

Electric throttle control actuator 
(bank 2)

8.

Water hose

9.

Clamp

10.

Gasket

11.

Water hose

12.

Water pipe

13.

Gasket

14.

Acoustic absorbent

15.

Water hose

16.

Water hose

17.

Electric throttle control actuator 
(bank 1)

18.

PCV hose

19.

Vacuum hose

20.

Manifold absolute pressure (MAP) 
sensor

21.

Intake manifold

22.

PCV hose

23.

EVAP hose

24.

Vacuum tank

25.

EVAP service port hose

26.

Clamp

JPBIA2075GB