Nissan Quest E52. Manual - part 584

CAMSHAFT

EM-85

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Removal and Installation

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REMOVAL

1.

Remove front timing chain case, camshaft sprocket, timing chain and rear timing chain case. Refer to 

EM-

67, "Removal and Installation"

.

2.

Loosen camshaft sensor bracket bolts in the reverse order as
shown in the figure.

NOTE:
The order of loosening bolts in the same for bank 1 and bank 2.

3.

Remove camshaft brackets.
• Mark camshafts, camshaft brackets and bolts so they are placed in the same position and direction for

installation.

• Equally loosen camshaft bracket bolts in several steps in the

reverse order as shown in the figure.

4.

Remove camshafts.

5.

Remove valve lifters.
• Identify installation positions, and store them without mixing them up.

 : Sealing point

 : Select with proper thickness.

: Engine front

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: Engine front

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EM-86

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CAMSHAFT

6.

Remove timing chain tensioners (secondary) (1) from cylinder
head.

• Remove timing chain tensioner (secondary) with its stopper

pin (C) attached.

NOTE:
Stopper pin was attached when timing chain (secondary) was
removed.

INSTALLATION

CAUTION:

Do not reuse washers.

1.

Install timing chain tensioners (secondary) (1) on both sides of
cylinder head.

• Install timing chain tensioner (secondary) with its stopper pin

(C) attached. 

• Install timing chain tensioner (secondary) with sliding part fac-

ing downward on cylinder head (bank 1), and with sliding part
facing upward on cylinder head (bank 2).

2.

Install valve lifters.
• Install it in the original position.

3.

Install camshafts.

• Follow your identification marks made during removal, or fol-

low the identification marks that are present on new camshafts
for proper placement and direction.

• Install camshaft so dowel pin (A) on front end face are posi-

tioned as shown in the figure. (No. 1 cylinder TDC on its com-
pression stroke)
NOTE:
Though camshaft does not stop at the portion as shown in the
figure, for the placement of cam nose, it is generally accepted
camshaft is placed for the same direction of the figure.

4.

Install camshaft brackets.

A

:  Bank  1

B

:  Bank  2

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A

:  Bank  1

B

:  Bank  2

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: Engine front

Bank

INT/EXH

Dowel pin 

(1)

Paint marks

M1 (D)

M2 (E)

M3 (C)

1

EXH (B)

Yes

No

Light blue

Light blue

INT (A)

Yes

Pink

No

Light blue

2

INT (A)

Yes

Pink

No

Light blue

EXH (B)

Yes

No

Light blue

Light blue

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CAMSHAFT

EM-87

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• Remove foreign material completely from camshaft bracket backside and from cylinder head installation

face.

• Install camshaft bracket in original position and direction as

shown in the figure.

• Install camshaft brackets (No. 2 to 4) aligning the stamp marks

(A) as shown in the figure.

NOTE:
There are no identification marks indicating left and right for
camshaft bracket (No. 1).

• Apply liquid gasket to mating surface of camshaft bracket (No.

1) as shown on bank 1 and bank 2.

Use Genuine RTV Silicone Sealant or equivalent. Refer to

GI-22, "Recommended Chemical Products and Sealants"

.

A

: No. 1

B

: No. 2

C

: No. 3

D

: No. 4

E

:  Bank  1

F

: Exhaust side

G

: Intake side

H

:  Bank  2

I

: Intake side

J

: Exhaust side

: Engine front

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B

:  Bank  1

C

:  Bank  2

: Engine front

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a

: 8.5 mm (0.335 in)

b

: 2 mm (0.08 in)

c

: Clearance 5 mm (0.20 in)

d

: 

φ

2.0 - 2.3 mm (0.079 - 0.091 in)

*

: Apply liquid gasket to rear timing chain case side

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EM-88

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CAMSHAFT

5.

Tighten camshaft bracket bolts in the following steps, in numeri-
cal order as shown in the figure.

CAUTION:

Do not reuse washers.

a.

Tighten No. 7 to 10 in order as shown.

b.

Tighten No. 1 to 6 in order as shown.

c.

Tighten No. 1 to 10 in numerical order as shown.

d.

Tighten No. 1 to 10 in numerical order as shown.

CAUTION:

After tightening mounting bolts of camshaft brackets (No.
1), be sure to wipe off excessive liquid gasket from the parts list below.

• Mating surface of rocker cover
• Mating surface of rear timing chain case

6.

Tighten camshaft sensor bracket bolts in numerical order as
shown in the figure.

NOTE:
The order of tightening bolts in the same for bank 1 and bank 2.

7.

Inspect and adjust the valve clearance. Refer to 

EM-18, "Inspection and Adjustment"

.

8.

Install in the reverse order of removal after this step.

Inspection

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INSPECTION AFTER REMOVAL

Camshaft Runout

• Put V-block on precise flat table, and support No. 2 and 4 journals of camshaft.

CAUTION:

Never support No. 1 journal (on the side of camshaft sprocket) because it has a different diameter
from the other three locations.

: Engine front

: 1.96 N·m (0.20 kg-m, 1 ft-lb)

: 1.96 N·m (0.20 kg-m, 1 ft-lb)

: 5.88 N·m (0.60 kg-m, 4 ft-lb)

: 10.4 N·m (1.1 kg-m, 8 ft-lb)

: Engine front

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