Nissan Qashqai J11. Manual — part 64

TIMING CHAIN

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Check for cracks

and any excessive wear

at link plates and

roller links of timing chain. Replace timing chain if necessary.

INSPECTION AFTER INSTALLATION

Inspection for Leakage

The following are procedures for checking fluids leakage, lubricates leakage, and exhaust gases leakage.
• Before starting engine, check oil/fluid levels including engine coolant and engine oil. If less than required

quantity, fill to the specified level. Refer to

MA-59, "Fluids and Lubricants"

.

• Use procedure below to check for fuel leakage.
- Turn ignition switch “ON” (with engine stopped). With fuel pressure applied to fuel piping, check for fuel leak-

age at connection points.

- Start engine. With engine speed increased, check again for fuel leakage at connection points.
• Run engine to check for unusual noise and vibration.

NOTE:
If hydraulic pressure inside chain tensioner drops after removal/installation, slack in guide may generate a
pounding noise during and just after the engine start. However, this does not indicate an unusualness. Noise
will stop after hydraulic pressure rises.

• Warm up engine thoroughly to check there is no leakage of fuel, or any oil/fluids including engine oil and

engine coolant.

• Bleed air from lines and hoses of applicable lines, such as in cooling system.
• After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to the

specified level, if necessary.

Summary of the inspection items:

*: Power steering fluid, brake fluid, etc.

PBIC3169J

Items

Before starting engine

Engine running

After engine stopped

Engine coolant

Level

Leakage

Level

Engine oil

Level

Leakage

Level

Transmission /
transaxle fluid

AT & CVT Models

Leakage

Level / Leakage

Leakage

MT Models

Level / Leakage

Leakage

Level / Leakage

Other oils and fluids*

Level

Leakage

Level

Fuel

Leakage

Leakage

Leakage

Exhaust gases

—

Leakage

—

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CAMSHAFT

CAMSHAFT

Exploded View

INFOID:0000000010715502

JSBIA1181GB

Exhaust valve timing control position sensor

O-ring

Camshaft bracket

Camshaft (EXH)

Camshaft sprocket (EXH)

Camshaft sprocket (INT)

Camshaft (INT)

Valve lifter (EXH)

Valve lifter (INT)

Signal plate (INT)

Signal plate (EXH)

O-ring

Camshaft position sensor (PHASE)

Comply with the assembly procedure when
tightening. Refer to

EM-197

: N·m (kg-m, ft-lb)

: N·m (kg-m, in-lb)

: Always replace after every disassembly.

: Should be lubricated with oil.

: Sealing point

: Select with proper thickness.

CAMSHAFT

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Removal and Installation

INFOID:0000000010715503

CAUTION:

The rotating direction in the text indicates all directions seen from the engine front.

REMOVAL

1.

Remove the following parts.
• Intake manifold: Refer to

EM-149, "Exploded View"

.

• Rocker cover: Refer to

EM-170, "Exploded View"

.

• Front cover and timing chain related parts: Refer to

EM-183, "Exploded View"

.

NOTE:
Removal of oil pump drive related part is not necessary.

2.

Remove camshaft position sensor (PHASE) and exhaust valve timing control position sensor from cam-
shaft bracket.

CAUTION:

• Handle camshaft position sensor (PHASE) and exhaust valve timing control position sensor

carefully and avoid impacts.

• Never disassemble camshaft position sensor (PHASE) and exhaust valve timing control position

sensor.

• Never place sensor where it is exposed to magnetism.

3.

Put the matching mark

on the camshaft sprocket (INT)

,

camshaft sprocket (EXH)

and the camshaft bracket

as

shown in the figure.
NOTE:
It prevents the knock pin of the camshaft (INT) from engaging
with the incorrect pin hole when installing the camshaft sprocket
(INT).

4.

Remove camshaft sprockets (INT and EXH).
• Secure hexagonal part

of camshaft with a wrench. Loosen

camshaft sprocket mounting bolts and remove camshaft
sprocket.

CAUTION:

• Never rotate crankshaft or camshaft while timing chain

is removed. It causes interference between valve and
piston.

• Never loosen the mounting bolts with securing anything

other than the camshaft hexagonal part or with tensioning the timing chain.

5.

Remove camshaft bracket with the following procedure:

a.

Loosen mounting bolts in reverse order as shown in the figure.

JPBIA4404ZZ

: Camshaft sprocket (INT)

: Camshaft sprocket (EXH)

JPBIA4405ZZ

: Engine front

JPBIA4406ZZ

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CAMSHAFT

b.

Cut liquid gasket by prying the position (

) shown in the figure,

and then remove the camshaft bracket.

CAUTION:

• Never damage the mating surface.
• A more adhesive liquid gasket is applied compared to pre-

vious types when shipped, so it should not be forced off
the position not specified.

6.

Remove camshafts.

7.

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

8.

Remove signal plate from camshaft, if necessary.

INSTALLATION

CAUTION:

Do not reuse O-rings.

1.

Install valve lifters.
• Install them in the original positions.

2.

Install camshafts.
• Clean camshaft journal to remove any foreign material.
• Distinguish between the intake and the exhaust by looking at

the different shapes of the front and rear ends of the camshaft
or using the identification colors

and

.

• Install camshafts so that camshaft dowel pins

on the front

side are positioned as shown in the figure.

NOTE:
Though camshaft does not stop at the positions as shown in
the figure, for the placement of cam nose, it is generally
accepted camshaft is placed for the same direction of the fig-
ure.

3.

Install camshaft bracket with the following procedure:

a.

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

: Engine front

JPBIA4407ZZ

: Camshaft (EXH)

: Camshaft (INT)

Identification color

Camshaft (EXH)

—

Brown

Camshaft (INT)

Purple

—

: Camshaft (EXH)

: Camshaft (INT)

JPBIA4408ZZ

JPBIA4409ZZ