2001 NISSAN X-TRAIL Nozzle

FUEL INJECTOR AND FUEL TUBE
EM-33
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●Do not remove or disassembly parts unless instructed as shown in the figure.
REMOVAL
1. Release fuel pressure. Refer to EC-775, "FUEL PRESSURE RELEASE" [QR20DE (WITH EURO-OBD)],
EC-1139, "
FUEL PRESSURE RELEASE" [QR20DE (WITHOUT EURO-OBD)], EC-42, "FUEL PRES-
SURE RELEASE" [QR25DE (WITH EURO-OBD)] or EC-452, "FUEL PRESSURE RELEASE" [QR25DE
(WITHOUT EURO-OBD)].
2. Remove air duct, air cleaner case (upper) assembly.
3. Disconnect fuel hose quick connector at fuel tube side.
●Regarding how to disconnect and connect quick connector, Refer to EM-16, "INTAKE MANIFOLD" .
CAUTION:
●Prepare a container of cloth for spilled fuel.
●This operation should be performed, in a place where free from fire.
●While hoses are disconnected seal their openings with vinyl bag or similar material to prevent
foreign material from entering them.
4. Remove intake manifold collector. Refer to EM-16, "
INTAKE MANIFOLD" .
5. Disconnect sub-harness for injector at engine front side, and remove it from bracket.
6. Loosen mounting bolts in the reverse order in the figure, and
remove fuel tube and fuel injector assembly.
7. Remove fuel tube and fuel injector assembly.
●Release clip and remove it.
●Pull fuel injector straight out of fuel tube.
●Be careful not to damage nozzle part.
●Avoid any impact such as a dropping.
●Do not disassemble or adjust it.
INSTALLATION
1. Install O-rings to fuel injector paying attention to the items below.
●Lubricate O-rings by smearing new engine oil.
●Be careful not to scratch it with a tool or fingernails dur-
ing installation. Also be careful not to twist or stretch O-
ring. If O-ring was stretched while it is attached, do no
insert it into fuel tube immediately.
2. Install fuel injector to fuel tube with the following procedure.
●Insert clip into clip mounting groove on fuel injector.
●Insert clip so that projection A of fuel injector matches notch A
of the clip.
●Do not reuse clip. Replace it with a new one.
●Be careful to keep clip from interfering with O-ring. If interfer-
ence occurs, replace O-ring.
3. Insert fuel injector into fuel tube with clip attached.
●Insert it while matching it to the axial center.
●Insert fuel injector so that projection B of fuel injector matches
notch B of the clip.
●Make sure that fuel tube flange is securely fixed in flange fixing groove on clip.
●Make sure that installation is complete by checking that fuel injector does not rotate or come off.
4. Install fuel tube assembly with the following procedure.
a. Insert the tip of each fuel injector into intake manifold.
KBIA0239E
O-ring color
Fuel tube side (Upper side) : Black
Intake manifold side (Lower side) : Green
SBIA0439E

EM-140
[YD22DDTi]
VACUUM PUMP
MODELS PRODUCED SINCE APRIL 2001
INSPECTION BEFORE REMOVAL
1. Disconnect vacuum hose, and connect a vacuum gauge via 3-way connector.
●Disconnect point where vacuum from vacuum pump can be measured directly and install 3-way con-
nector.
2. Start engine and measure generated vacuum at idle speed.
●If out of standard, check for air suction in vacuum route, and measure again.
●If still outside of standard, replace vacuum pump.
REMOVAL
1. Drain engine coolant. Refer to CO-29, "Changing Engine Coolant" .
2. Remove air duct and air cleaner case. Refer to EM-120, "
Removal and Installation" .
3. Remove charge air cooler and bracket. Refer to EM-122, "
Removal and Installation" .
4. Disconnect harness connector from fuel injector.
5. Remove injection tube. Refer to EM-144, "
Removal and Installation" .
6. Remove fuel injector oil seal.
7. Remove rocker cover. Refer to EM-156, "
Removal and Installation" .
8. Remove spill tube. Refer to EM-144, "
Removal and Installation" .
9. Remove nozzle support from NO.2 cylinder and fuel injector. Refer to EM-144, "
Removal and Installation"
.
10. Remove air inlet pipes. Refer to EM-127, "
Removal and Installation" .
11. Remove exhaust manifold cover.
12. Disconnect electronic EGR volume control valve water hose and harness.
13. Disconnect heater hose.
14. Remove EGR cooler.
SBIA0325E
Standard:
– 86.6 to – 101.3 kPa (– 866 to – 1,013 mbar, – 650 to – 760 mmHg, – 25.59 to – 29.92 inHg)

EM-144
[YD22DDTi]
INJECTION TUBE AND FUEL INJECTOR
INJECTION TUBE AND FUEL INJECTOR
PFP:00018
Removal and InstallationEBS00LRO
CAUTION:
Apply new engine oil to parts marked in illustration before installation.
REMOVAL
1. Remove charge air cooler. Refer to EM-122, "Removal and Installation" .
2. Disconnect harness connector from fuel injector.
3. Remove spill hose.
4. Following steps below, remove injection tubes.
a. Put a paint mark or tag on injection tubes to identify each cylin-
der.
●Use a fuel-resistant method.
b. Remove injection tubes in order of 2-1-4-3 individually.
CAUTION:
Be careful not to allow leaked fuel to contaminate engine
compartment. Especially, ensure to keep engine mount
insulator clear of fuel.
NOTE:
Removal procedure of fuel injector is shown below.
PBIC1142E
1. Spill tube 2. Eye-bolt 3. Spill tube gasket
4. Nozzle support 5. Fuel injector 6. O-ring
7. Nozzle gasket 8. Nozzle oil seal 9. Injection tube No.1
10. Injection tube No.2 11. Injection tube No.3 12. Injection tube No.4
13. Injection tube center 14. Common rail assembly
SBIA0203E

INJECTION TUBE AND FUEL INJECTOR
EM-145
[YD22DDTi]
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5. Remove nozzle oil seal.
●Using a slotted screwdriver, pry flange to remove oil seal.
NOTE:
Nozzle oil seal seals between fuel injector and rocker cover. If
only injection tube shall be removed and installed, nozzle oil
seal replacement is not required.
6. Remove rocker cover. Refer to EM-156, "
Removal and Installa-
tion" .
7. Remove spill tube mounting bolts and nut.
●Loosen bolts and nut to the reverse order of the shown in the
figure and remove then.
8. Following steps below, remove fuel injector.
a. Remove nozzle support.
b. Remove fuel injector. While rotating it to left and right, raise it to
remove.
CAUTION:
●Handle fuel injector carefully without giving any impact.
●Do not disassemble fuel injector.
c. If nozzle gasket remains in cylinder head, hook it with tip of a
slotted screwdriver and pull it out.
INSTALLATION
1. Following steps below, install fuel injector.
a. Install O-ring and nozzle gasket to fuel injector, and insert them into cylinder head.
b. Tighten injection tubes temporarily in the order of 3-4-1-2.
c. Be sure to fit nozzle support without looseness.
d. Tighten nozzle support bolts.
e. Loosen injection tubes in the order of 2-1- 4-3.
PBIC0944E
SBIA0205E
PBIC0759E

EM-146
[YD22DDTi]
INJECTION TUBE AND FUEL INJECTOR
2. Connect spill tube.
●Tighten fixing bolts and nut in the numerical order shown in
the figure.
NOTE:
Connection of spill tube gasket may be broken, even if it is
tighten to specified torque. It does not affect performance.
3. Carry out air tightness test for spill tube.
●Connect a vacuum handy pump to spill connector. Check that
vacuum is retained while applying following vacuum.
●If outside of standard, reconnect spill tube. (Replace gasket in
this case.)
4. Install rocker cover. Refer to EM-156, "
Removal and Installation"
.
5. Install nozzle oil seal.
●Insert it straight until its flange fully contacts rocker cover.
CAUTION:
●Check gutter spring in nozzle oil seal on fuel injector for missing.
6. Connect injection tubes individually to each cylinder in order of
3-4-1-2.
7. Connect spill hose.
8. Install remaining parts in reverse order of removal.
INSPECTION AFTER INSTALLATION
CONSULT-ll service support has a force rail pressure increase function and can increase rail pressure to any
given pressure. Check for fuel leaks visually by increasing internal pressure using this function.
SBIA0205E
Standard:
− 53.3 to − 66.7 kPa (− 533 to − 667 mbar, − 400 to −
500 mmHg, −15.75 to − 19.69 inHg)
JEF250Z
SBIA0203E

EM-156
[YD22DDTi]
ROCKER COVER
ROCKER COVER
PFP:13264
Removal and InstallationEBS00LRQ
REMOVAL
1. Remove charge air cooler cover. Refer to EM-122, "Removal and Installation" .
2. Remove charge air cooler and bracket.
3. Disconnect harness connector from injection nozzle.
4. Following steps below, remove injection tube.
a. Put a paint mark or tag on injection tubes to identify each cylinder.
●Use a fuel-resistant method.
b. Remove injection tubes in order of 2-1-4-3 individually.
CAUTION:
Be careful not to allow leaked fuel to contaminate engine compartment. Especially, ensure to keep
engine mount insulator clear of fuel.
5. Remove injection nozzle oil seal.
●Using a slotted screwdriver, pry flange to remove oil seal.
PBIC0760E
1. Nozzle oil seal 2. Oil filler cap 3. Gasket
4. Rocker cover
PBIC0944E

ROCKER COVER
EM-157
[YD22DDTi]
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6. Remove rocker cover.
●Loosen holding bolts in the reverse order of that shown in the
figure and remove.
INSTALLATION
1. Apply 3.0 mm (0.118 in) dia. of Genuine Liquid Gasket or equiv-
alent (Refer to EM-111, "
Precautions For Liquid Gasket" .) on
locations shown in the figure.
2. Tighten holding bolts in the numerical order shown in the figure.
●Re-tighten to the same torque in the same order as above.
3. Install nozzle oil seal.
●Insert it straight until flange fully contacts cylinder head.
4. Install remaining parts in reverse order removal.
5. Before starting engine, bleed air from fuel piping. Refer to FL-16,
"Air Bleeding" .
INSPECTION AFTER INSTALLATION
Start engine and increase engine speed to check for fuel leak.
SBIA0175E
JEM248G
SBIA0175E

EM-218
[YD22DDTi]
CYLINDER BLOCK
OIL JET
●Check nozzle for deformation and damage.
●Blow compressed air from nozzle, and check for clogs.
●If it out of the standard, replace oil jet.
OIL JET RELIEF VALVE
●Using a clean plastic stick, press check valve in oil jet relief
valve. Make sure that valve moves smoothly with proper reac-
tion force.
●If it is out of the standard, replace oil jet relief valve.
MOVEMENT AMOUNT OF FLYWHEEL
NOTE:
●Inspection for double mass flywheel only.
●Do not disassembly double mass flywheel.
Flywheel Deflection
●Measure deflection of flywheel contact surface to the clutch with a dial gauge.
●Measure deflection at 210 mm (8.27 in) dia.
●When measured value exceeds the limit, replace flywheel with a
new one.
Movement Amount in Radial (rotation) Direction
Check the movement amount in the following procedure.
1. Install a bolt to clutch cover mounting hole, and place a torque wrench on the extended line of the flywheel
center line.
●Tighten bolt at a force of 9.8 N·m (1 kg-m, 87 in-lb) to keep it from loosening. Standard : Deformation and damage.
JEM221G
Standard:
Valve moves smoothly with proper reaction force.
JEM222G
Standard : 0.45 mm (0.0177 in) or less
Limit : 1.3 mm (0.051 in)
PBIC0683E