2006 INFINITI QX56 Factory Service Manual

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Page 1921 of 3383

INFINITI QX56 2006 Factory Service Manual EM-30Revision: November 2009
SPARK PLUG (PLATINUM-TIPPED TYPE)
2006 QX56
Checking and adjusting plug gap is not required between
change intervals.
INSTALLATION
Installation is in the reverse order of

Page 1922 of 3383

INFINITI QX56 2006 Factory Service Manual FUEL INJECTOR AND FUEL TUBEEM-31
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Revision: November 2009 2006 QX56
FUEL INJECTOR AND FUEL TUBEPFP:16600
Removal and InstallationEBS00RF5
CAUTION:
Do not remove or disassemble

Page 1923 of 3383

INFINITI QX56 2006 Factory Service Manual EM-32Revision: November 2009
FUEL INJECTOR AND FUEL TUBE
2006 QX56
7. Remove the fuel injector from the fuel tube using the followingsteps.
a. Spread open and remove the clip.
b. Remove the fuel injec

Page 1924 of 3383

INFINITI QX56 2006 Factory Service Manual FUEL INJECTOR AND FUEL TUBEEM-33
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Revision: November 2009 2006 QX56
Handle O-ring with bare hands. Never wear gloves.
Lubricate new O-ring with new engine oil.
Do not clean

FUEL INJECTOR AND FUEL TUBEEM-33
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Revision: November 2009 2006 QX56
Handle O-ring with bare hands. Never 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. 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 tube. Do not angle or twist it.
3. Install the fuel injector to the fuel tube using the following steps.
a. Insert new clip into clip mounting groove on the fuel injector.
Insert clip so that lug ″A″ of fuel injector matches notch ″A″ of
the clip.
CAUTION:
Do not reuse clip. Replace it with a new one.
Do not allow the clip to interfere with the O-ring. If
interference occurs, replace the O-ring.
b. Insert the fuel injector into the fuel tube with the clip attached.
Insert it while matching it to the axial center.
Insert fuel injector so that lug ″B″ of fuel tube matches notch
″ B″ of the clip.
Make sure that the fuel tube flange is securely seated in the
flange fixing groove on the clip.
c. Make sure that installation is complete by checking that the fuel injector does not rotate or come off.
Make sure that the protrusions of the fuel injectors are aligned
with the cutouts of the clips after installation.
4. Install the fuel tube and fuel injector assembly to the intake manifold. CAUTION:
Do not let the tip of the injector nozzle come in contact with other parts.
Tighten fuel tube assembly bolts ″a ″ to ″b ″ in illustration in two
steps.
5. Install the fuel hose assembly.
Insert connectors straight, making sure that the axis is lined up with fuel tube side to prevent O-ring
from being damaged.
Tighten bolts evenly in several steps.
Make sure that there is no gap between the flange and fuel tube after tightening the bolts.
CAUTION:
Handle O-ring with bare hands. Do not wear gloves.
Lubricate O-ring with new engine oil.
Do not clean O-ring with solvent.
KBIA2507E
1st step : 12.8 N·m (1.3 kg-m, 9 ft-lb)
2nd step : 24.5 N·m (2.5 kg-m, 18 ft-lb)
KBIA2474E

Page 1925 of 3383

INFINITI QX56 2006 Factory Service Manual EM-34Revision: November 2009
FUEL INJECTOR AND FUEL TUBE
2006 QX56
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 t

Page 1926 of 3383

INFINITI QX56 2006 Factory Service Manual ROCKER COVEREM-35
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Revision: November 2009 2006 QX56
ROCKER COVERPFP:13264
Removal and InstallationEBS00RF6
REMOVAL
1. Remove the engine room cover using power tool. Refer to

Page 1927 of 3383

INFINITI QX56 2006 Factory Service Manual EM-36Revision: November 2009
ROCKER COVER
2006 QX56
INSTALLATION
1. Apply liquid gasket to the joint part of the cylinder head andcamshaft bracket following the steps below.
NOTE:
Illustration shows a

Page 1928 of 3383

INFINITI QX56 2006 Factory Service Manual TIMING CHAINEM-37
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Revision: November 2009 2006 QX56
TIMING CHAINPFP:13028
Removal and InstallationEBS00RF7
KBIA2511E

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