2007 INFINITI QX56 Factory Service Manual

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Page 1801 of 3061

INFINITI QX56 2007 Factory Service Manual
FUEL INJECTOR AND FUEL TUBEEM-31
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FUEL INJECTOR AND FUEL TUBE
Removal and InstallationINFOID:0000000003531531
CAUTION:
Do not remove or disassemb

Page 1802 of 3061

INFINITI QX56 2007 Factory Service Manual
EM-32
< SERVICE INFORMATION >
FUEL INJECTOR AND FUEL TUBE
7. Remove the fuel injector from the fuel tube using the followingsteps.
a. Spread open and remove the clip.
b. Remove the fuel injector from

Page 1803 of 3061

INFINITI QX56 2007 Factory Service Manual
FUEL INJECTOR AND FUEL TUBEEM-33
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• Lubricate new O-ring with new engine oil.
• Do not clean O-ring with solvent.
• Make sure that O-ring a

FUEL INJECTOR AND FUEL TUBEEM-33
< SERVICE INFORMATION >
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• 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 att ached, 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 interf ere with the O-ring. If inter-
ference 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 alignedwith 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 nozz le 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 su re 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.
• 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 att ached, do not insert it quickly into fuel tube.
• Insert new O-ring straight into fuel tube. Do not twist it.
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 1804 of 3061

INFINITI QX56 2007 Factory Service Manual
EM-34
< SERVICE INFORMATION >
FUEL INJECTOR AND FUEL TUBE
6. Installation of the remaining components is in the reverse order of removal.
INSPECTION AFTER INSTALLATION
After installing the fuel tubes

Page 1805 of 3061

INFINITI QX56 2007 Factory Service Manual
ROCKER COVEREM-35
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ROCKER COVER
Removal and InstallationINFOID:0000000003531532
REMOVAL
1. Remove the engine room cover using power tool. Refer t

Page 1806 of 3061

INFINITI QX56 2007 Factory Service Manual
EM-36
< SERVICE INFORMATION >
ROCKER COVER
1. Apply liquid gasket to the joint part of the cylinder head andcamshaft bracket following the steps below.
NOTE:
Illustration shows an example of (LH) sid

Page 1807 of 3061

INFINITI QX56 2007 Factory Service Manual
TIMING CHAINEM-37
< SERVICE INFORMATION >
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TIMING CHAIN
Exploded ViewINFOID:0000000003591548
AWBIA0100GB

Page 1808 of 3061

INFINITI QX56 2007 Factory Service Manual
EM-38
< SERVICE INFORMATION >
TIMING CHAIN
Removal and Installation
INFOID:0000000003531533
NOTE:
• To remove timing chain and associated parts, start with those on the LH bank. The procedure for r

EM-38
< SERVICE INFORMATION >
TIMING CHAIN
Removal and Installation
INFOID:0000000003531533
NOTE:
• To remove timing chain and associated parts, start with those on the LH bank. The procedure for removing parts on the RH bank is omitted because it is the same as that for removal on the LH bank.
• To install timing chain and associated parts, start with those on the RH bank. The procedure for installing parts on the LH bank is omitted because it is t he same as that for installation on the RH bank.
REMOVAL
1. Remove the engine assembly from the vehicle. Refer to EM-74, "Removal and Installation".
2. Remove the following components and related parts: • Drive belt auto tensioner and idler pulley. Refer to EM-13, "
Removal and Installation".
• Thermostat housing and water hose. Refer to CO-20, "
Removal and Installation".
• Power steering oil pump bracket. Refer to LU-14, "
Removal and Installation".
• Oil pan (lower), (upper) and oil strainer. Refer to EM-24, "
Removal and Installation".
• Ignition coil. Refer to EM-28, "
Removal and Installation".
• Rocker cover. Refer to EM-35, "
Removal and Installation".
3. Remove the chain case cover RH bank (A) and chain case cover LH bank (B) as follows:
a. Loosen and remove the bolts as shown.
b. Cut the liquid gasket and remove the covers using Tool.
CAUTION:
Do not damage mating surfaces.
1. Camshaft sprocket LH bank EXH 2. Camshaft sprocket LH bank INT (VTC)3. Camshaft sprocket RH bank INT
(VTC)
4. Camshaft sprocket RH bank EXH 5. Front cover 6. Intake valve control solenoid valve (RH)
7. Intake valve control solenoid valve cover (RH) 8. Intake valve timing control position
sensor (RH) 9. Intake valve timing control position
sensor (LH)
10. Intake valve control solenoid valve cover (LH) 11. Camshaft position sensor (PHASE) 12 Crankshaft pulley bolt
13. Crankshaft pulley 14. Chain tensioner cover 15. Front oil seal
16. Intake valve control solenoid valve (RH) 17. O-ring 18. Timing chain tension guide RH bank
19. Timing chain slack guide (RH) 20. Timing chain RH bank 21. Timing chain LH bank
22. Chain tensioner (RH) 23. Timing chain slack guide LH bank 24. Timing chain tension guide LH bank
25. Chain tensioner (LH) 26. O-ring 27. Bracket
28. Oil pump drive spacer 29. Oil pump assembly 30. Crankshaft sprocket
A. To crankshaft B. To camshaft LH bank EXH C. To camshaft LH bank INT (VTC)
D. To camshaft RH bank INT (VTC) E. To camshaft RH bank EXH F. Apply sealant to mating side
G. Refer to EM-38
Tool number : KV10111100 (J-37228)
WBIA0798E

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