Nissan Murano Z51. Manual - part 657

EM-100

< UNIT DISASSEMBLY AND ASSEMBLY >

CAMSHAFT

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

face.

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

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< UNIT DISASSEMBLY AND ASSEMBLY >

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• 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-18, "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-102

< UNIT DISASSEMBLY AND ASSEMBLY >

CAMSHAFT

5.

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

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.

Measure difference in levels between front end faces of cam-
shaft bracket (No. 1) and cylinder head. 

• Measure two positions (both intake and exhaust side) for a

single bank.

• If the measured value is out of the standard, reinstall camshaft

bracket (No. 1).

8.

Inspect and adjust the valve clearance. Refer to 

EM-22, "Inspection and Adjustment"

.

9.

Install in the reverse order of removal after this step.

Inspection

INFOID:0000000005515963

INSPECTION AFTER REMOVAL

Camshaft Runout

1.

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

: 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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Standard

: 

−

0.14 to 0.14 mm (

−

0.0055 to 0.0055 in) 

EMQ0044D

CAMSHAFT

EM-103

< UNIT DISASSEMBLY AND ASSEMBLY >

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CAUTION:

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

2.

Set a dial indicator vertically to No. 3 journal.

3.

Turn camshaft to one direction with hands, and measure the
camshaft runout on a dial indicator. (Total indicator reading)

4.

If it exceeds the limit, replace camshaft.

Camshaft Cam Height

1.

Measure the camshaft cam height with a micrometer.

2.

If wear exceeds the limit, replace camshaft.

Camshaft Journal Oil Clearance

CAMSHAFT JOURNAL DIAMETER

• Measure the outer diameter of camshaft journal with a micrometer

(A).

CAMSHAFT BRACKET INNER DIAMETER

• Tighten camshaft bracket bolt with the specified torque. Refer to “INSTALLATION” for the tightening proce-

dure.

• Measure inner diameter (A) of camshaft bracket with a bore gauge.

CAMSHAFT JOURNAL OIL CLEARANCE

• (Oil clearance) = (Camshaft bracket inner diameter) – (Camshaft journal diameter).

Standard and limit

: Refer to 

EM-146, "Camshaft"

.

PBIC0929E

Standard cam height 

: Refer to 

EM-146, "Cam-

shaft"

.

 (Intake and exhaust)

Cam wear limit

: Refer to 

EM-146, "Cam-

shaft"

.

EMQ0072D

Standard and limit

: Refer to 

EM-146, "Camshaft"

.

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Standard

: Refer to 

EM-146, "Camshaft"

.

PBIC1645E