Nissan Xterra. Manual — part 355
EM-48
< REMOVAL AND INSTALLATION >
[VQ40DE]
FUEL INJECTOR AND FUEL TUBE
• Upper and lower O-ring are different colors.
• Handle O-ring with bare hands. Do not wear gloves.
• Lubricate new O-ring with new engine oil.
• Do not clean O-ring with solvent.
• Make sure that O-ring and its mating part are free of foreign material.
• When installing O-ring, be careful not to scratch it with tool or fingernails.
• Do not twist or stretch O-ring. If O-ring was stretched while it was being attached, allow it to
retract before inserting it into fuel tube.
• Insert O-ring straight into fuel injector. Do not angle or twist it.
3. Install fuel injector to fuel tube as follows:
a. Insert clip (3) into clip groove (F) on fuel injector (5).
• Insert clip so that protrusion (E) of fuel injector matches cutout
(C) of clip.
CAUTION:
• Do not reuse O-rings (2 and 4).
• Do not reuse clip. Replace it with new one.
• Be careful to keep clip from interfering with O-ring (2). If
interference occurs, replace O-ring (2).
b. Insert fuel injector into fuel tube (1) with clip attached.
• Insert it while matching it to the axial center.
• Insert fuel injector so that protrusion (A) of fuel tube matches
cutout (B) of clip.
• Check that fuel tube flange (G) is securely fixed in flange fixing
groove (D) on clip.
c.
Check that installation is complete by checking that fuel injector
does not rotate or come off.
• Check that protrusions of fuel injectors and fuel tubes are
aligned with cutouts of clips after installation.
4. Connect the fuel tube (RH) to the fuel tube (LH), and tighten bolts temporarily.
• Tighten bolts to the specified torque after installing fuel tube and fuel injector assembly.
CAUTION:
• Handle O-ring with bare hands. Do not wear gloves.
• Do not reuse O-rings.
• Lubricate O-ring with new engine oil.
• Do not clean O-ring with solvent.
• Make sure that O-ring and its mating part are free of foreign material.
• When installing O-ring, be careful not to scratch it with tool or fingernails.
• Do not twist or stretch O-ring. If O-ring was stretched while it was being attached, allow it to
retract before inserting it into fuel tube.
• Insert new O-ring straight into fuel tube. Do not angle or twist it.
5. Install fuel tube and fuel injector assembly to intake manifold.
CAUTION:
Do not let the tip of the injector nozzle come in contact with other parts.
Fuel tube side
: Blue
Nozzle side
: Brown
JPBIA1959ZZ
FUEL INJECTOR AND FUEL TUBE
EM-49
< REMOVAL AND INSTALLATION >
[VQ40DE]
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• Tighten bolts in two steps in numerical order as shown.
6. Tighten bolts which connect fuel tube (RH) and fuel tube (LH) to the specified torque.
7. Connect fuel injector harness connector.
8. Install intake manifold collector. Refer to
EM-25, "Removal and Installation"
.
9. Installation of the remaining components is in the reverse order of removal.
INSPECTION AFTER INSTALLATION
Check on Fuel Leakage
1. Apply fuel pressure to the fuel lines by turning ignition switch ON (with engine stopped). Then check for
fuel leaks at the connections.
2. Start the engine and rev it up and check for fuel leaks at the connections.
WARNING:
Do not touch engine immediately after stopping, as engine becomes extremely hot.
NOTE:
Use mirrors for checking at points out of clear sight.
Fuel injector tube assembly bolts
1st step
: 10.1 N·m (1.0 kg-m, 7 ft-lb)
2nd step
: 22.0 N·m (2.2 kg-m, 16 ft-lb)
PBIC2902E
EM-50
< REMOVAL AND INSTALLATION >
[VQ40DE]
INTAKE VALVE TIMING CONTROL
INTAKE VALVE TIMING CONTROL
Intake Valve Timing Control Solenoid Valve (LH)
INFOID:0000000009484467
REMOVAL
1. Disconnect the harness connector from intake valve timing control solenoid valve (LH).
2. Remove intake valve timing control solenoid valve bolts (LH) and O-ring from rocker cover.
CAUTION:
Do not reuse O-ring.
INSTALLATION
Installation is in the reverse order of removal. Refer to
CAUTION:
• Do not reuse O-rings.
• Lubricate the new O-ring for the intake valve timing control solenoid valve with clean engine oil
before installing.
Intake Valve Timing Control Solenoid Valve (RH)
INFOID:0000000009484468
REMOVAL
1. Remove intake manifold collector. Refer to
EM-25, "Removal and Installation"
2. Disconnect the harness connector from intake valve timing control solenoid valve (RH).
3. Remove intake valve timing control solenoid valve bolts (RH) and O-ring from rocker cover.
CAUTION:
Do not reuse O-ring.
INSTALLATION
Installation is in the reverse order of removal. Refer to
CAUTION:
• Do not reuse O-rings.
• Lubricate the new O-ring for the intake valve timing control solenoid valve with clean engine oil
before installing.
FRONT TIMING CHAIN CASE
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< REMOVAL AND INSTALLATION >
[VQ40DE]
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FRONT TIMING CHAIN CASE
Exploded View
INFOID:0000000009484469
Removal and Installation
INFOID:0000000009484470
NOTE:
When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spill-
ing.
REMOVAL
1. Drain engine oil. Refer to
CAUTION:
• Perform this step when engine is cold.
• Do not spill engine oil on drive belts.
2. Drain engine coolant from radiator. Refer to
CO-11, "Changing Engine Coolant"
.
CAUTION:
• Perform this step when engine is cold.
• Do not spill engine coolant on drive belts.
3. Remove engine cooling fan (Motor driven type). Refer to
CO-19, "Removal and Installation (Motor driven
.
4. Disconnect engine harnesses and remove harness brackets from front timing chain case.
5. Remove EVAP canister purge volume control solenoid valve, if necessary.
6. Remove drive belt. Refer to
EM-13, "Removal and Installation"
.
AWBIA1522ZZ
1.
O-ring
2.
Collared O-ring
3.
Intake valve timing control cover (RH)
4.
Idler pulley
5.
Drive belt auto-tensioner
6.
Intake valve timing control cover (LH)
7.
Collared O-ring
8.
O-ring
9.
Chain tensioner cover
10. Cooling fan bracket
11. Crankshaft pulley
12.
Front oil seal
13. Water pump cover
14. Front timing chain case
15.
O-ring
A.
Refer to
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