Nissan X-Trail 32. Manual — part 1071
EXHAUST MANIFOLD AND THREE WAY CATALYST
EM-181
< REMOVAL AND INSTALLATION >
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6.
Disconnect the air fuel ratio sensor 1 harness connector.
7.
Remove the oil level gauge and oil level gauge guide. Refer to
8.
Move the resonator of air duct assembly, set it aside.
9.
Remove the exhaust manifold cover (upper).
10. Loosen the exhaust manifold and three way catalyst nuts in the
reverse order as shown.
11. Remove the exhaust manifold and three way catalyst assembly and gasket. Discard the gasket.
12. Remove the exhaust manifold covers (lower) and three way catalyst cover.
13. Remove the air fuel ratio sensor 1
using SST (A), (if neces-
sary).
CAUTION:
• Be careful not to damage air fuel ratio sensor.
• Discard any air fuel ratio sensor which has been dropped
from a height of more than 0.5 m (19.7 in) onto a hard sur-
face such as a concrete floor; replace with a new one.
INSTALLATION
Exhaust Manifold
1.
Install studs in cylinder head and exhaust manifold (if removed). Then tighten to specification.
CAUTION:
Do not reuse cylinder head or exhaust manifold studs.
2.
Install three way catalyst cover (if removed) and bolts. Then
tighten the bolts to specification in the numerical order shown.
CAUTION:
Do not reuse bolts.
:Engine front
JSBIA3332ZZ
SST numbers
: KV10117100
ALBIA0919GB
ALBIA0887GB
EM-182
< REMOVAL AND INSTALLATION >
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EXHAUST MANIFOLD AND THREE WAY CATALYST
3.
Install the exhaust manifold cover (lower) and bolts. Then
tighten the bolts to specification in the numerical order shown.
CAUTION:
Do not reuse bolts.
4.
Install the exhaust manifold and gasket. Then tighten the nuts to
specification in the numerical order shown.
CAUTION:
• Do not reuse gasket.
• Do not reuse nuts.
5.
Install the air fuel ratio sensor 1
using SST (A) and tighten to
specification.
CAUTION:
• Be careful not to damage air fuel ratio sensor.
• Discard any air fuel ratio sensor which has been dropped
from a height of more than 0.5 m (19.7 in) onto a hard sur-
face such as a concrete floor; replace with a new one.
• Do not over-tighten the air fuel ratio sensor 1. Doing so
may cause damage to the air fuel ratio sensor 1, resulting
in a malfunction and the MIL coming on.
6.
Install the exhaust manifold cover (upper). Then tighten the bolts
to specification in the numerical order shown.
CAUTION:
Do not reuse bolts.
Inspection
INFOID:0000000010783790
INSPECTION AFTER REMOVAL
Surface Distortion
ALBIA0889GB
:Engine front
JSBIA3332ZZ
SST numbers
: KV10117100
ALBIA0919GB
ALBIA0888GB
EXHAUST MANIFOLD AND THREE WAY CATALYST
EM-183
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• Check the surface distortion of the exhaust manifold mating sur-
face with a straightedge (A) and a feeler gauge (B).
• If it exceeds the limit, replace exhaust manifold.
Limit
: Refer to
.
JSBIA3333ZZ
EM-184
< REMOVAL AND INSTALLATION >
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FUEL INJECTOR AND FUEL TUBE
FUEL INJECTOR AND FUEL TUBE
Exploded View
INFOID:0000000010783791
CAUTION:
Never remove or disassemble parts unless instructed in the figure.
Removal and Installation
INFOID:0000000010783792
WARNING:
• Put a “CAUTION: FLAMMABLE” sign in the workshop.
• Be sure to work in a well ventilated area and furnish workshop with a CO
2
fire extinguisher.
• Never smoke while servicing fuel system. Keep open flames and sparks away from the work area.
REMOVAL
1.
Release the fuel pressure. Refer to
.
2.
Disconnect the battery negative terminal. Refer to
PG-142, "EXCEPT FOR R9M : Removal and Installa-
3.
Remove intake manifold. Refer to
EM-176, "Removal and Installation"
Cylinder head
O-ring (green)
Fuel injector
Clip
O-ring (black)
Fuel tube
To under floor piping
: Engine front
: N·m (kg-m, ft-lb)
: Always replace after every disassembly.
: Should be lubricated with oil.
JSBIA4995GB
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