Nissan Teana J32. Manual — part 477

EM-32

< ON-VEHICLE REPAIR >

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-411, "Inspection"

.

2.

Remove intake manifold collector. Refer to

EM-28, "Exploded View"

.

3.

Remove fuel tube and fuel injector assembly. Refer to

EM-44, "Exploded View"

.

4.

Loosen mounting nuts and bolts in 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-32

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-33

< ON-VEHICLE REPAIR >

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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-136, "Intake Manifold"

.

JPBIA0015ZZ

EM-34

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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:
• Air duct (inlet), air cleaner case (upper) with mass air flow sensor and air duct assembly: Refer to

EM-

26, "Exploded View"

.

• Engine cover: Refer to

EM-24, "Exploded View"

.

• Front wiper arm: Refer to

WW-105, "Exploded View"

.

• Extension cowl top: Refer to

EXT-20, "Exploded View"

.

2.

Remove exhaust front tube. Refer to

EX-5, "Exploded View"

.

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.

Air fuel ratio sensor 1 (bank 2)

10. Exhaust manifold cover (bank 2)

11. Exhaust manifold (bank 2)

12.

Ring gasket

13. Three way catalyst (bank 2)

14. Three way catalyst support (bank 2)

15.

Heated oxygen sensor 2 (bank 2)

A.

To oil pan (upper)

B.

Upper mark

Refer to

GI-4, "Components"

for symbols in the figure.

JPBIA2235GB

EXHAUST MANIFOLD AND THREE WAY CATALYST

EM-35

< ON-VEHICLE REPAIR >

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3.

Disconnect harness connector and remove air fuel ratio sensor
1 on both banks with the heated oxygen sensor wrench [SST:
KV10117100 (J3647-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 (J38365)] (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 (bank 1 and bank 2) by loosening bolts first and then removing nuts.

CAUTION:

Handle carefully to avoid any shock to three way catalyst.

8.

Loosen mounting nuts in reverse order as shown in the figure to
remove exhaust manifolds (bank 1 and bank 2).

NOTE:
Disregard No. 7 and 8 when loosing.

9.

Remove gaskets.

CAUTION:

JPBIA1781ZZ

A

: Bank 1

C

: Bank 2

JPBIA2247ZZ

A

: Bank 1

B

: Bank 2

: Engine front

JPBIA1633ZZ