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
.
2.
Remove intake manifold collector. Refer to
3.
Remove fuel tube and fuel injector assembly. Refer to
.
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
Refer to
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
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
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
.
• Engine cover: Refer to
• Front wiper arm: Refer to
• Extension cowl top: Refer to
.
2.
Remove exhaust front tube. Refer to
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
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