Infiniti QX56 (Z62). Manual - part 649

EM-36

< REMOVAL AND INSTALLATION >

VVEL ACTUATOR ASSEMBLY

VVEL ACTUATOR ASSEMBLY

Exploded View

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Removal and Installation

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REMOVAL

1.

Remove engine cover. Refer to 

EM-25, "Exploded View"

.

1.

VVEL actuator motor assembly 
(bank 2)

2.

Gasket

3.

VVEL actuator housing assembly 
(bank 2)

4.

Washer

5.

VVEL ladder assembly (bank 2)

6.

Exhaust camshaft (bank 2)

7.

Cylinder head (bank 2)

8.

Cylinder head (bank 1)

9.

Exhaust camshaft (bank 1)

10. VVEL ladder assembly (bank 1)

11.

VVEL actuator housing assembly 
(bank 1)

12. Gasket

13.

VVEL actuator motor assembly 
(bank 1)

14.

VVEL control shaft position sensor 
(bank 1)

15.

VVEL control shaft position sensor 
(bank 2)

A.

Comply with the installation proce-
dure when tightening. Refer to 

EM-

75, "Removal and Installation"

.

B.

View B

C.

View C

Refer to 

GI-4, "Components"

 for symbols in the figure.

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VVEL ACTUATOR ASSEMBLY

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< REMOVAL AND INSTALLATION >

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2.

Loosen mounting bolts (C), and then remove VVEL actuator
motor assembly (1).

CAUTION:

Never loosen screws (A) of VVEL actuator motor assembly.

3.

Remove rocker cover. Refer to 

EM-33, "Exploded View"

.

4.

Insert mounting bolt (A) removed at step 2 into VVEL actuator
housing assembly.

5.

Loosen mounting bolt (C) to disengage the control shaft and the actuator arm.

A

:  Bank  2

B

:  Bank  1

: Engine front

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< REMOVAL AND INSTALLATION >

VVEL ACTUATOR ASSEMBLY

6.

Loosen mounting bolts (C), and then remove VVEL actuator housing assembly.

INSTALLATION

Note the following, and install in the reverse order of removal.
• When disengaging the control shaft (1) and the actuator arm, hold the stopper of the control shaft in the posi-

tion shown in the figure. 

A.

Bank 1

B.

Bank 2

: Engine front

1.

VVEL actuator housing assembly 
(bank 1)

2.

VVEL actuator housing assembly 
(bank 2)

A.

Bank 1

B.

Bank 2

: Engine front

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A.

Bank 1

B.

Bank 2

C.

View C

: Engine front

VVEL ACTUATOR ASSEMBLY

EM-39

< REMOVAL AND INSTALLATION >

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Inspection

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INSPECTION AFTER REMOVAL

VVEL actuator housing assembly
• Move the ball nut (A) in the axial direction to check the smooth

rotation.

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