2005 INFINITI FX35 Service Manual

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Page 2881 of 4731

INFINITI FX35 2005 Service Manual EM-46
[VQ35DE]
FUEL INJECTOR AND FUEL TUBE
Revision: 2005 July 2005 FX
4. Remove fuel feed hose (with damper) from fuel sub-tube.
NOTE:
There is no fuel return route.
CAUTION:
While hoses are disc

Page 2882 of 4731

INFINITI FX35 2005 Service Manual FUEL INJECTOR AND FUEL TUBE EM-47
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Revision: 2005 July 2005 FX
To keep clean the connecting portion and to avoid dam-
age and foreign materials, cover

Page 2883 of 4731

INFINITI FX35 2005 Service Manual EM-48
[VQ35DE]
FUEL INJECTOR AND FUEL TUBE
Revision: 2005 July 2005 FX
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

EM-48
[VQ35DE]
FUEL INJECTOR AND FUEL TUBE
Revision: 2005 July 2005 FX
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. Also be careful not
to twist or stretch O-ring. If O-ring was stretched while it was being attached, do not insert it
quickly into fuel tube.
Insert new O-ring straight into fuel tube. Do not decenter or twist it.
Insert fuel damper and fuel sub-tube straight into fuel tube.
Tighten mounting bolts evenly in turn.
After tightening mounting bolts, make sure that there is no gap between flange and fuel tube.
2. Install new O-rings to fuel injector, paying attention to the following.
CAUTION:
Upper and lower O-ring are different. Be careful not to confuse them.
Handle O-ring with bare hands. Do not wear gloves.
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. Also be careful not to
twist or stretch O-ring. If O-ring was stretched while it was being attached, do not insert it
quickly into fuel tube.
Insert O-ring straight into fuel injector. Do not decenter or twist it.
3. Install fuel injector to fuel tube as follows:
a. Insert clip into clip mounting groove on fuel injector.
Insert clip so that protrusion “A” of fuel injector matches cutout
“A” of clip.
CAUTION:
Do not reuse clip. Replace it with a new one.
Be careful to keep clip from interfering with O-ring. If
interference occurs, replace O-ring.
b. Insert fuel injector into fuel tube with clip attached.
Insert it while matching it to the axial center.
Insert fuel injector so that protrusion “B” of fuel tube matches
cutout “B” of clip.
Make sure that fuel tube flange is securely fixed in flange fix-
ing groove on clip.
c. Make sure that installation is complete by checking that fuel injector does not rotate or come off.
Make sure that protrusions of fuel injectors are aligned with
cutouts of clips after installation.
4. Install spacers on intake manifold.
5. Install fuel tube and fuel injector assembly to intake manifold. CAUTION:
Be careful not to let tip of injector nozzle come in contact with other parts. Fuel tube side : Blue
Nozzle side : Brown
PBIC2545E

Page 2884 of 4731

INFINITI FX35 2005 Service Manual FUEL INJECTOR AND FUEL TUBE EM-49
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Revision: 2005 July 2005 FX
Tighten mounting bolts in two steps in numerical order as
shown in the figure.
6. Conn

FUEL INJECTOR AND FUEL TUBE EM-49
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Revision: 2005 July 2005 FX
Tighten mounting bolts in two steps in numerical order as
shown in the figure.
6. Connect injector sub-harness.
7. Install intake manifold collectors (upper and lower). Refer to EM-19, "
INTAKE MANIFOLD COLLECTOR" .
8. Install fuel sub-tube on rear end of intake manifold collector (lower).
9. Connect fuel feed hose (with damper).
Handling procedure of O-ring is the same as that of fuel damper and fuel sub-tube.
Insert fuel damper straight into fuel sub-tube.
Tighten mounting bolts evenly in turn.
After tightening mounting bolts, make sure that there is no gap between flange and fuel sub-tube.
10. Connect quick connector between fuel feed hose (with damper) and centralized under-floor piping con- nection as follows:
a. Make sure no foreign substances are deposited in and around centralized under-floor piping and quick connector, and no damage on them.
b. Thinly apply new engine oil around centralized under-floor piping from tip end to spool end.
c. Align center to insert quick connector straightly into centralized under-floor piping.
Insert quick connector to centralized under-floor piping until
top spool is completely inside quick connector, and 2nd level
spool exposes right below quick connector.
CAUTION:
Hold “A” position as shown in the figure when inserting
centralized under-floor piping into quick connector.
Carefully align center to avoid inclined insertion to pre-
vent damage to O-ring inside quick connector.
Insert until you hear a “click” sound and actually feel the
engagement.
To avoid misidentification of engagement with a similar
sound, be sure to perform the next step.
d. Pull quick connector by hand holding “A” position. Make sure it is completely engaged (connected) so that it does not come out from centralized under-floor piping.
e. Install quick connector cap to quick connector connection.
Install quick connector cap with arrow on surface facing in
direction of quick connector (fuel feed hose side).
CAUTION:
If quick connector cap cannot be installed smoothly, quick
connector may have not been installed correctly. Check the
connection again.
11. Install in the reverse order of removal after this step. 1st step
: 10.1 N·m (1.0 kg-m, 7 ft-lb)
2nd step : 23.6 N·m (2.4 kg-m, 17 ft-lb)
KBIA1296E
PBIC2471E
KBIA1298E

Page 2885 of 4731

INFINITI FX35 2005 Service Manual EM-50
[VQ35DE]
FUEL INJECTOR AND FUEL TUBE
Revision: 2005 July 2005 FX
INSPECTION AFTER INSTALLATION
Check on Fuel Leakage
1. Turn ignition switch “ON” (with the engine stopped). With fuel pressu

Page 2886 of 4731

INFINITI FX35 2005 Service Manual ROCKER COVER EM-51
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Revision: 2005 July 2005 FX
ROCKER COVERPFP:13264
ComponentsABS00E64
Removal and InstallationABS004U9
REMOVAL
1. Remove engine cover

Page 2887 of 4731

INFINITI FX35 2005 Service Manual EM-52
[VQ35DE]
ROCKER COVER
Revision: 2005 July 2005 FX
10. Loosen mounting bolts with power tool in reverse order as
shown in the figure.
11. Remove rocker cover gaskets from rocker covers.
12. Us

Page 2888 of 4731

INFINITI FX35 2005 Service Manual ROCKER COVER EM-53
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Revision: 2005 July 2005 FX
4. Tighten bolts in two steps separately in numerical order as
shown in the figure.
5. Install oil cat

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