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![NISSAN X-TRAIL 2001 Service Repair Manual EXHAUST MANIFOLD AND TURBOCHARGER
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EXHAUST MANIFOLD AND TURBOCHARGERPFP:14004
Removal and InstallationEBS00LRH
REMOVAL
1. Drain engine coolant. Refer to CO-2 NISSAN X-TRAIL 2001 Service Repair Manual EXHAUST MANIFOLD AND TURBOCHARGER
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EXHAUST MANIFOLD AND TURBOCHARGERPFP:14004
Removal and InstallationEBS00LRH
REMOVAL
1. Drain engine coolant. Refer to CO-2](/manual-img/5/57405/w960_57405-176.png)
EXHAUST MANIFOLD AND TURBOCHARGER
EM-127
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Removal and InstallationEBS00LRH
REMOVAL
1. Drain engine coolant. Refer to CO-29, "Changing Engine Coolant" .
2. Remove charge air cooler. Refer to EM-122, "
Removal and Installation" .
3. Remove air duct and air inlet pipe. Refer to EM-120, "
Removal and Installation" .
4. Remove engine undercover.
5. Remove radiator upper and lower hoses.
6. Remove radiator fan. Refer to CO-33, "
Disassembly and Assembly Radiator Fan" .
7. Remove radiator mount bracket and radiator. Refer to CO-32, "
Removal and Installation" .
8. Remove water inlet pipe.
9. Disconnect exhaust front tube. Refer to EX-2, "
EXHAUST SYSTEM" .
10. Remove catalyst. Refer to EM-126, "
Removal and Installation" .
11. Remove exhaust manifold cover.
12. Remove insulator.
13. Each wiring and piping (disconnect/move)
PBIC1228E
1. Electronic EGR volume control valve 2. Gasket 3. EGR Cooler
4. Air inlet pipe 5.Exhaust manifold & turbocharger
assembly6. Oil return hose
7. Turbo insulator 8. Exhaust manifold insulator 9. Air inlet pipe
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EM-128
[YD22DDTi]
EXHAUST MANIFOLD AND TURBOCHARGER
14. Loosen exhaust manifold mounting nuts in the reverse order
specified in the figure.
15. Rotate the exhaust manifold and turbocharger assembly so that
the rear side (EGR cooler mounting side) faces upward. And
then pull out the assembly from between the engine and the air
conditioning piping.
CAUTION:
Be careful not to deform each turbocharger piping when
pulling out the assembly.
INSTALLATION
●When a stud bolt is pulled out, tighten it to the following torque:
●Tighten the exhaust manifold mounting nuts in the following procedure:
1. Tighten the nuts in the order specified in the figure.
2. Re-tighten the nuts 1 to 4.
3. Install the gasket so that the alignment protrusion faces the No.
4 port.
4. Install in reverse order of removal.
INSPECTION AFTER INSTALLATION
Start engine and raise engine speed to check no exhaust emission leaks.
JEM266G
: 18 - 21 N·m (1.8 - 2.2 kg-m, 13 - 15 ft-lb)
JEM266G
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EXHAUST MANIFOLD AND TURBOCHARGER
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Disassembly and AssemblyEBS00LRI
REMOVAL
1. After applying penetrative lubricant to the mounting nuts, check for the penetration of the lubricant, and
then loosen the nuts to remove.
CAUTION:
Do not disassemble or adjust the turbocharger body.
2. When a stud bolt is pulled out, tighten it to the following torque:
INSPECTION AFTER REMOVAL
Surface Distortion
Check the distortion on the mounting surface in the six directions
using a straightedge and a feeler gauge.
PBIC0679E
1. Exhaust manifold 2. Gasket 3. Oil inlet tube
4. Water tube 5. Turbocharger 6. Oil outlet tube
: 24 - 27 N·m (2.4 - 2.8 kg-m, 18 - 20 ft-lb)
Limit : 0.3 mm (0.012 in)
JEM267G
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EM-130
[YD22DDTi]
EXHAUST MANIFOLD AND TURBOCHARGER
Turbocharger
EBS00LRJ
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:
ROTOR SHAFT CLEARANCE
●Check that the rotor shaft rotates smoothly without any resis-
tance when it is rotated by your fingertips.
●Check that the rotor shaft is not loose when it is moved vertically
or horizontally.
Measure looseness with a dial gauge inserting its measuring rod
through oil drain hole of turbocharger.
ROTOR SHAFT END PLAY
Place a dial gauge at the rotor shaft end in the axial direction to mea-
sure the end play.
SEM269G
Suction side : Between turbocharger and air cleaner
Exhaust side : Between turbocharger and catalyst
Standard : 0.068 - 0.096 mm (0.0027 - 0.0038 in)
SEM270G
Standard : 0.026 - 0.084 mm (0.0010 - 0.0033 in)
SEM271G
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![NISSAN X-TRAIL 2001 Service Repair Manual EXHAUST MANIFOLD AND TURBOCHARGER
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TURBINE WHEEL
●Check that there is no engine oil adhesion.
●Check that there is no carbon accumulation.
●Check that NISSAN X-TRAIL 2001 Service Repair Manual EXHAUST MANIFOLD AND TURBOCHARGER
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TURBINE WHEEL
●Check that there is no engine oil adhesion.
●Check that there is no carbon accumulation.
●Check that](/manual-img/5/57405/w960_57405-180.png)
EXHAUST MANIFOLD AND TURBOCHARGER
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TURBINE WHEEL
●Check that there is no engine oil adhesion.
●Check that there is no carbon accumulation.
●Check that blades of the turbine wheel are not bent or broken.
●Check that the turbine wheel does not interfere with the turbine
housing.
COMPRESSOR WHEEL
●Check that there is no engine oil adhesion inside the air inlet.
●Check that the compressor wheel does not interfere with the
compressor housing.
●Check that the wheel is not bent or broken.
WASTEGATE VALVE ACTUATOR
●Connect the handy pump to the actuator, and check that the rod
strokes smoothly in compliance with the following pressure.
●Pressure to be applied at actuator part to move rod end as fol-
lows:
SEM272G
SEM273G
Standard (Pressure/rod stroke amount):
: 150.80 - 156.20 kPa (1,508 - 1,562 mbar, 1,131 - 1,172
mmHg, 44.0 - 46.2 inHg)/0.38 mm (0.0150 in)
: 176.50 - 185.90 kPa (1,765 - 1,859 mbar, 1,324 - 1,394
mmHg, 52.2 - 54.9 inHg)/4.0 mm (0.157 in)
SEM274G
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![NISSAN X-TRAIL 2001 Service Repair Manual EM-132
[YD22DDTi]
EXHAUST MANIFOLD AND TURBOCHARGER
TROUBLE DIAGNOSIS OF TURBOCHARGER
Preliminary check:
●Check that the engine oil level is between MIN and MAX of the dipstick. (When the engine NISSAN X-TRAIL 2001 Service Repair Manual EM-132
[YD22DDTi]
EXHAUST MANIFOLD AND TURBOCHARGER
TROUBLE DIAGNOSIS OF TURBOCHARGER
Preliminary check:
●Check that the engine oil level is between MIN and MAX of the dipstick. (When the engine](/manual-img/5/57405/w960_57405-181.png)
EM-132
[YD22DDTi]
EXHAUST MANIFOLD AND TURBOCHARGER
TROUBLE DIAGNOSIS OF TURBOCHARGER
Preliminary check:
●Check that the engine oil level is between MIN and MAX of the dipstick. (When the engine oil amount is
more than MAX, the engine oil flows into the inlet duct through the blow-by gas passage, and the turbo-
charger is misjudged failure.)
●Ask the customer if he/she always runs the vehicle in idle engine speed to cool the engine oil down after
driving.
●Replace the turbocharger assembly when any malfunction is found after unit inspections specified in the
table below.
●If no malfunction is found after the unit inspections, judge that the turbocharger body has no failure. Check
the other parts again.
A: Large possibility
B: Medium possibility
C: Small possibilityInspection item Inspection resultSymptom
(when each inspection item meets each inspection result)
Engine oil
leakageSmoke NoiseInsufficient power/
acceleration failure
Turbine wheelEngine oil leaks C A C C
Carbon is accumulated C A B B
Friction with housing C B A B
Blades are bent or broken — — A A
Compressor wheelInside the air inlet is seriously con-
taminated by engine oil.BB— —
Friction with housing C B A B
Blades are bent or broken — — A A
After checking both turbine and
compressor, inspect rotor shaft
end play.There is resistance when the rotor
shaft is rotated by your fingertips.—CC B
The rotor shaft sometimes does not
rotate by your fingertips.——— A
There is too much play in the bear-
ing.CCB C
Oil return portCarbon or sludge is accumulated in
the waste oil hole.CAC C
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OIL PAN AND OIL STRAINER
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OIL PAN AND OIL STRAINERP F P : 1111 0
Removal and InstallationEBS00LRK
REMOVAL
WARNING:
To avoid the danger of being scalded, never drain the engine oil when the engine is hot.
1. Remove engine undercover at both side.
2. Drain engine oil. Refer to LU-19, "
Changing Engine Oil" .
3. Remove lower oil pan bolts, Loosen bolts in the reverse order of
that shown in the figure.
PBIC1140E
1. Rear plate cover 2. Oil pan upper 3. Oil strainer
4. Drain plug 5. Oil pan lower 6 Crankshaft position sensor (TDC)
SBIA0161E
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![NISSAN X-TRAIL 2001 Service Repair Manual EM-134
[YD22DDTi]
OIL PAN AND OIL STRAINER
4. Remove lower oil pan.
a. Insert Tool (seal cutter) between upper oil pan and lower oil pan.
●Be careful not to damage aluminum mating surface.
●Do no NISSAN X-TRAIL 2001 Service Repair Manual EM-134
[YD22DDTi]
OIL PAN AND OIL STRAINER
4. Remove lower oil pan.
a. Insert Tool (seal cutter) between upper oil pan and lower oil pan.
●Be careful not to damage aluminum mating surface.
●Do no](/manual-img/5/57405/w960_57405-183.png)
EM-134
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OIL PAN AND OIL STRAINER
4. Remove lower oil pan.
a. Insert Tool (seal cutter) between upper oil pan and lower oil pan.
●Be careful not to damage aluminum mating surface.
●Do not insert screwdriver, or oil pan flange will be
deformed.
b. Slide Tool by tapping on the side of the Tool with a hammer.
c. Remove lower oil pan.
5. Remove drive belts.
6. Remove A/C compressor and bracket.
7. Remove front exhaust tube and its support.
8. Set a suitable transmission jack under transaxle and hoist
engine with engine slinger. Refer to EM-193, "
Removal and
Installation" .
9. Remove center member.
10. Remove crankshaft position sensor (TDC) from transaxle.
CAUTION:
●Avoid impacts such as a dropping.
●Do not disassemble.
●Keep it away from metal particles.
●Do not place sensor close to magnetic materials.
11. Remove rear plate cover and four engine-to transaxle bolts.
12. Remove catalyst and rear diffuser. Refer to EM-126, "
Removal
and Installation" .
SEM544G
SEM545G
JEM553G
PBIB0416E