Removal and Installation: Removal

WARNING: This page is about a different variant/trim than selected.

Courtesy of NISSAN NORTH AMERICA, INC.

CAUTION:

Do not loosen adjusting bolts (A), bolts (black color) (B) of VVEL ladder assembly and bolts (C) of VVEL control shaft position sensor. If loosened, the stroke of cam lift becomes out of adjustment. In such case, replacement of VVEL ladder assembly and cylinder head assembly is required.

Do not loosen the bolts (C) of the VVEL control shaft position sensor. VVEL control shaft position sensor mounting bolts are required to be loosened for adjustment only when using a new VVEL ladder assembly. Refer to Description .

VVEL control shaft position sensor bolt

: 7.0 N.m (0.71 kg-m, 62 in-lb)

NOTE: VVEL ladder assembly cannot be replaced as a single part, because it is machined together with cylinder head assembly.

Remove front cover, camshaft sprockets, and timing chains. Refer to Removal and Installation .
Remove VVEL actuator housing assembly. Refer to Exploded View .

Remove VVEL ladder assembly.

Loosen bolts (gold color) in the reverse sequence as shown.

Fig 1: VVEL Ladder Assembly Tightening Sequence

Courtesy of NISSAN NORTH AMERICA, INC.

(A)	: Bank 2
(B)	: Bank 1
	: Engine front

CAUTION:

Do not loosen adjusting bolts and bolts (black color).
When removing VVEL ladder assembly, hold the drive shaft from below so as not to drop it.
Do not drop or damage VVEL ladder assembly, it is machined with cylinder head and is not available separately.

Remove exhaust camshaft.
Remove valve lifter (if necessary).
- Identify installation positions, and store them without mixing them up.