Nissan Murano Z51. Manual - part 641

EM-36

< REMOVAL AND INSTALLATION >

INTAKE MANIFOLD

INTAKE MANIFOLD

Exploded View

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Removal and Installation

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REMOVAL

1.

Release fuel pressure. Refer to 

EC-530, "Inspection"

.

2.

Remove intake manifold collector. Refer to 

EM-33, "Exploded View"

.

3.

Remove fuel tube and fuel injector assembly. Refer to 

EM-49, "Exploded View"

.

4.

Loosen mounting nuts and bolts in the reverse order as shown
in the figure to remove intake manifold with power tool.

5.

Remove gaskets.

CAUTION:

Cover engine openings to avoid entry of foreign materials.

INSTALLATION

Note the following, and install in the reverse order or removal.

Intake Manifold

• If stud bolts were removed, install them and tighten to the specified torque below.

1.

Intake manifold

2.

Gasket

A.

Refer to 

EM-36

Refer to 

GI-4, "Components"

 for symbols in the figure.

JPBIA1629GB

: Engine front

JPBIA1630ZZ

: 10.8 N·m (1.1 kg-m, 8 ft-lb)

INTAKE MANIFOLD

EM-37

< REMOVAL AND INSTALLATION >

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• Tighten all mounting nuts and bolts to the specified torque in two or

more steps in numerical order shown in the figure.

Inspection

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INSPECTION AFTER REMOVAL

Surface Distortion

• Check the surface distortion of the intake manifold mating surface

with a straightedge (A) and a feeler gauge (B).

• If it exceeds the limit, replace intake manifold.

: Engine front

 1st step

: 7.4 N·m (0.75 kg-m, 5 ft-lb)

 2nd step and after

: 25.5 N·m (2.6 kg-m, 19 ft-lb)

JPBIA1630ZZ

Limit

: Refer to 

EM-146, "Intake Manifold"

.

JPBIA0015ZZ

EM-38

< REMOVAL AND INSTALLATION >

EXHAUST MANIFOLD AND THREE WAY CATALYST

EXHAUST MANIFOLD AND THREE WAY CATALYST

Exploded View

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Removal and Installation

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REMOVAL

WARNING:

Perform the work when the exhaust and cooling system have completely cooled down.

1.

Remove following parts:

1.

Gasket

2.

Exhaust manifold (bank 1)

3.

Exhaust manifold cover (bank 1)

4.

Air fuel ratio sensor 1 (bank 1)

5.

Ring gasket

6.

Three way catalyst (bank 1)

7.

Three way catalyst support (bank 1)

8.

Heated oxygen sensor 2 (bank 1)

9.

Three way catalyst (bank 2)

10. Three way catalyst support (bank 2)

11. Heated oxygen sensor 2 (bank 2)

12.

Ring gasket

13. Exhaust manifold (bank 2)

14. Exhaust manifold cover (bank 2)

15.

Air fuel ratio sensor 1 (bank 2)

A.

To oil pan (upper)

B.

Upper mark

C.

Stud bolt and flange bolt type 
(bank 2)

D.

Flange bolt type (bank 2)

Refer to 

GI-4, "Components"

 for symbols in the figure.

JPBIA2710GB

EXHAUST MANIFOLD AND THREE WAY CATALYST

EM-39

< REMOVAL AND INSTALLATION >

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• Radiator core support covers (RH and LH), air duct (inlet), air cleaner case (upper) with mass air flow

sensor and air duct assembly: Refer to 

EM-31, "Exploded View"

.

• Engine cover: Refer to 

EM-29, "Exploded View"

.

• Front wiper arm: Refer to 

WW-130, "Exploded View"

.

• Extension cowl top: Refer to 

EXT-21, "Exploded View"

.

2.

Remove exhaust front tube. Refer to 

EX-5, "Exploded View"

.

3.

Disconnect harness connector and remove air fuel ratio sensor
1 on both banks with the heated oxygen sensor wrench [SST:
KV10117100 (J-3647-A)] (B).
• Put marks to identify installation positions of each air fuel ratio

sensor 1.

CAUTION:

• Be careful not to damage air fuel ratio sensor 1.
• Discard any air fuel ratio sensor 1 which has been

dropped onto a hard surface such as a concrete floor.
Replace with a new sensor.

NOTE:
Figure is shown as an example of bank 2 (A).

4.

Disconnect harness connector and remove heated oxygen sen-
sor 2 on both banks with the heated oxygen sensor wrench
[SST: KV10114400 (J-38365)] (B).

• Put marks to identify installation positions of each heated oxy-

gen sensor 2.

CAUTION:

• Be careful not to damage heated oxygen sensor 2.
• Discard any heated oxygen sensor 2 which has been

dropped onto a hard surface such as a concrete floor.
Replace with a new sensor.

5.

Remove exhaust manifold covers (bank 1 and bank 2).

6.

Remove three way catalyst support mounting bolts (bank 1 and bank 2).

7.

Remove three way catalysts by loosening bolts first and then removing nuts. (Stud bolt and flange bolt
type)

CAUTION:

Handle carefully to avoid any shock to three way catalyst.

JPBIA1781ZZ

A

: Bank 2

C

: Bank 1

JPBIA1724ZZ