Nissan Juke F15. Instruction — part 622
EM-42
< REMOVAL AND INSTALLATION >
[MR FOR NISMO RS MODELS]
TURBOCHARGER
INSPECTION AFTER REMOVAL
Turbocharger
Turbocharger
CAUTION:
When the compressor wheel, turbine wheel or rotor shaft is damaged, remove all the fragments and
foreign matter left in the following passages in order to prevent a secondary failure:
Inspection Location
Result
Symptoms likely to occur when the results shown on
the left exist.
Oil leakage
Smoke
Noise
Poor pow-
er
Poor ac-
celeration
Turbine wheel
Wet with oil.
C
A
C
C
Carbon deposits observed.
C
A
B
B
“Rubs against” housing.
C
B
A
B
Vane is bent or broken.
A
A
Compressor wheel
Inside of intake port is badly stained
with oil.
B
B
“Rubs against” housing.
C
B
A
B
Vane is bent or broken.
A
A
Check both turbine and compres-
sor rotor shaft end play.
Heavy feel or catching when turned by
hand.
C
C
B
Cannot be turned by hand.
A
Excessively loose bearing.
C
C
B
C
Rotor shaft, oil return port (Check
inside using penlight.)
Carbon or sludge deposits in oil drain
port.
C
A
C
C
Boost control valve actuator oper-
ation (using a handy pump)
• Does not operate smoothly when air
pressure is gradually applied.
• Stroke amount is not compliance
with the air pressure.
A
A: Highly
possible.
B: Possible.
C: May
exist.
JPBIA4359ZZ
A.
Check for leakage
TURBOCHARGER
EM-43
< REMOVAL AND INSTALLATION >
[MR FOR NISMO RS MODELS]
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Turbocharger Boost Control
• Connect the a pressurized handy pump (A) to the actuator, and
check that the rod strokes smoothly in compliance with the follow-
ing pressure.
INSPECTION AFTER INSTALLATION
Start engine and raise engine speed to check no exhaust emission leaks.
Suction side
: Between turbocharger and charge air cooler
Exhaust side
: Between turbocharger and outlet duct
Standard (value of pressure/Value of rod moving):
JPBIA0665ZZ
EM-44
< REMOVAL AND INSTALLATION >
[MR FOR NISMO RS MODELS]
EXHAUST MANIFOLD
EXHAUST MANIFOLD
Exploded View
INFOID:0000000012197268
Removal and Installation
INFOID:0000000012197269
REMOVAL
1. Remove turbocharger. Refer to
2. Remove exhaust manifold.
• Loosen nuts in reverse order as shown in the figure.
NOTE:
Disregard the numerical order No. 9 to 12 in removal.
3. Remove gasket.
CAUTION:
Cover engine openings to avoid entry of foreign materials.
INSTALLATION
JSBIA1975GB
1.
Stud bolt
2.
Exhaust manifold cover
3.
Exhaust manifold
4.
Gasket
Engine front
: N·m (kg-m, ft-lb)
: N·m (kg-m, in-lb)
: Always replace after every disassembly.
: Engine front
JPBIA4360ZZ
EXHAUST MANIFOLD
EM-45
< REMOVAL AND INSTALLATION >
[MR FOR NISMO RS MODELS]
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1. Install gasket to cylinder head as shown in the figure.
2. Install exhaust manifold with the following procedure:
a. Tighten nuts in numerical order as shown in the figure.
NOTE:
• Tighten nuts the No.1 to No.4 in two steps.
• The numerical order No.9 to No.12 shows the second step.
3. Install remaining parts in the reverse order of removal.
Inspection
INFOID:0000000012197270
INSPECTION AFTER REMOVAL
Surface Distortion
• Using feeler gauge (A) and straightedge (B), check the surface dis-
tortion of exhaust manifold mating surface in each exhaust port
and entire part.
• If it exceeds the limit, replace exhaust manifold.
: Engine front
JPBIA4361ZZ
: Engine front
JPBIA4360ZZ
Limit
: Refer to
.
JPBIA4363ZZ
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