Nissan Qashqai J11. Manual - part 35

CAMSHAFT

EM-79

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5.

Remove camshaft brackets with the following procedure.

a.

Remove camshaft brackets (No.1 to 6).
• Loosen bolts in several steps in the reverse of the order as shown in the figure. 
• Identify installation positions for each camshaft brackets, and store them without mixing them up.

6.

Remove camshaft (EXH).

7.

Remove camshaft (INT).

8.

Remove valve lifter.
• Identify installation positions for each camshaft brackets, and store them without mixing them up.

INSTALLATION

1.

Install valve lifter with the following procedure.
• If it is reused, install in its original positions.

a.

Apply engine oil on each valve lifter housing.

b.

Set each valve lifter into the repective seat of the cylinder head.

c.

Apply engine oil on the valve lifter, on the sliding surface of cam.

2.

Install camshaft.

• Distinction between camshaft (INT and EXH) is performed with

the different length of each one.

• Apply oil on the camshaft journal. of the cylinder head. 

A

: EXH side

B

: INT side

: Engine front

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1

: Camshaft (EXH)

2

: Camshaft (INT)

: Engine front

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EM-80

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CAMSHAFT

• Install camshafts to the cylinder head so that lugs (A) on front

end are positioned as shown in the figure.

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.

3.

Install camshaft brackets (No. 1 to 6) aligning the identification
marks on upper surface as shown in the figure.

• Install so that identification mark can be correctly read when

viewed from the INT side.
NOTE:
There is no identification mark for the bracket No.1 (INT and
EXH) and for the bracket No. 6 (INT).

4.

Tighten mounting bolts of camshaft brackets in the following steps, in numerical order as shown in the fig-
ure.

a.

Tighten No. 1 to 13 in numerical order.

b.

Tighten No.1 to 13 in numerical order.

5.

Install cylinder head closing plate with the following procedure. 

1

: Camshaft (EXH)

2

: Camshaft (INT)

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: EXH side

B

: INT side

: Engine front

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:  EXH  side

B

:  INT  side

: Engine front

: 4.0 N·m (0.4 kg-m, 3 ft-lb)

: 10.4 N·m (1.1 kg-m, 8 ft-lb)

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CAMSHAFT

EM-81

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a.

Clean and degrease cylinder head closing plate.

b.

Apply a continuous bead of liquid gasket with tube presser
(commercial service tool) to cylinder head closing plate as
shown in the figure.  
Use Genuine Liquid Gasket or equivalent.

NOTE:
Liquid gasket must be applied at a distance of 1.0 mm (0.04 in)
to 2.0 mm (0.08 in) from the inside edge of the cylinder head
closing plate. 

CAUTION:

Applying excess of liquid gasket can create damage on the
parts during tightening sequency.

c.

Install cylinder head closing plate and bolts. Refer to 

EM-77, "Exploded View"

d.

Tighten cylinder head closing plate bolts.

6.

Install the camshaft sprockets (INT and EXH) to the camshafts
(INT and EXH) with the following procedure.

a.

Check that the camshaft lugs (1) are still in the same position as
shown in the figure.

b.

Install camshaft sprockets and mounting bolts (INT and EXH).

c.

Tighten the camshaft sprockets mounting bolts (INT and EXH).
• Hold camshaft using open end spanner (1)
• Tighten camshaft sprocket mounting bolt.

7.

Install timing chain. Refer to 

EM-59, "Removal and Installation"

.

8.

Check and adjust valve clearance. Refer to 

EM-84, "Inspection and Adjustment"

.

9.

When replacing valve timing control solenoide valve. Refer to 

ECH-102, "Special Repair Requirement

List"

.

Inspection

INFOID:0000000010282233

INSPECTION AFTER REMOVAL

Oil Filter

• Check that there is no foreign material on the oil filter and check it for clogging.
• Check the oil filter for damage.
• If there is some damage, replace the oil filter, the plug, and the washer as a set.

Camshaft Runout

1.

Liquid gasket application area [

φ

3.0 - 4.0 mm (0.12 - 0.16 in)]

: 25.0 N·m (2.6 kg-m, 18 ft-lb)

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: 75 N·m (7.7 kg-m, 55 ft-lb)

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EM-82

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CAMSHAFT

1.

Put V-block on a precise flat table, and support camshaft.

CAUTION:

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

2.

Set a dial indicator vertically to journal.

3.

Turn camshaft one turn with hands while avoiding the lubrifica-
tion holes to check camshaft runout. 

4.

If it exceeds the limit, replace camshaft.

Camshaft Cam Height

1.

Measure the camshaft cam height with a micrometer (A).

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 bolts with the specified torque. Refer to "INSTALLATION" for the tightening proce-

dure.

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

(A).

CAMSHAFT JOURNAL OIL CLEARANCE
• (Oil clearance) = (Camshaft bracket inner diameter) – (Camshaft journal diameter)

Standard and Limit

: Refer to 

EM-114, "Camshaft"

.

PBIC2499E

Standard and Limit

Intake

: Refer to 

EM-114, "Camshaft"

.

Exhaust

Cam wear limit:

: Refer to 

EM-114, "Camshaft"

.

PBIC3178J

Standard:

: Refer to 

EM-114, "Camshaft"

.

PBIC3179J

Standard

: Refer to 

EM-114, "Camshaft"

.

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