2005 INFINITI QX4 Factory Service Manual

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Page 1969 of 3419

INFINITI QX4 2005 Factory Service Manual EM-66Revision: October 2005
CYLINDER HEAD
2005 QX56
2. Remove the valve guide using suitable tool.
CAUTION:
Cylinder head contains heat. When working, wear protec-
tive equipment to avoid getting burn

Page 1970 of 3419

INFINITI QX4 2005 Factory Service Manual CYLINDER HEAD
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Revision: October 20052005 QX56
VALVE SEAT CONTACT
After confirming that the dimensions of the valve guides and
valves are within specifications, perform

Page 1971 of 3419

INFINITI QX4 2005 Factory Service Manual EM-68Revision: October 2005
CYLINDER HEAD
2005 QX56
6. Grind to obtain the dimensions indicated as shown.
Using compound, grind to adjust valve fitting.
7. Check again for normal contact. Refer to E

Page 1972 of 3419

INFINITI QX4 2005 Factory Service Manual ENGINE ASSEMBLY
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Revision: October 20052005 QX56
ENGINE ASSEMBLYPFP:10001
Removal and InstallationEBS00LMI
WA RN ING:
Situate vehicle on a flat and solid surface.
Plac

Page 1973 of 3419

INFINITI QX4 2005 Factory Service Manual EM-70Revision: October 2005
ENGINE ASSEMBLY
2005 QX56
5. Remove the cowl extension. Refer to EI-18, "Removal and Installation" .
6. Remove the engine room cover using power tools.
7. Remove the air du

EM-70Revision: October 2005
ENGINE ASSEMBLY
2005 QX56
5. Remove the cowl extension. Refer to EI-18, "Removal and Installation" .
6. Remove the engine room cover using power tools.
7. Remove the air duct and air cleaner case assembly EM-14, "
REMOVAL" .
8. Disconnect the vacuum hose between the vehicle and engine and set it aside.
9. Remove the radiator assembly and hoses. Refer to CO-12, "
REMOVAL" .
10. Remove the drive belts. Refer to EM-12, "
Removal" .
11. Remove the fan blade. Refer to CO-15, "
REMOVAL" .
12. Disconnect the engine room harness from the fuse box and set it aside.
13. Disconnect the ECM.
14. Disconnect the engine room harness from the engine side and set it aside.
15. Disconnect the engine harness grounds.
16. Disconnect the power steering reservoir tank from the engine and move it aside.
17. Disconnect the power steering oil pump from the engine. Move it aside and secure it using suitable wire or
rope. Refer to PS-26, "
REMOVAL" .
18. Remove the A/C compressor bolts and set the compressor aside. Refer to ATC-179, "
REMOVAL" .
19. Disconnect the brake booster vacuum line.
20. Disconnect the EVAP line.
21. Disconnect the fuel hose at the engine side connection. Refer to EM-29, "
REMOVAL" .
22. Disconnect the heater hoses at cowl, and install plugs to avoid leakage of engine coolant.
23. Remove the A/T oil level indicator and indicator tube upper bolts.
24. Remove the front final drive assembly (4x4 only). Refer to FFD-11, "
REMOVAL" .
25. Remove the exhaust manifolds. Refer to EM-19, "
Removal and Installation" .
26. Install the engine slingers into the left bank cylinder head and
right bank cylinder head.
27. Remove the A/T. Refer to AT-244, "
Removal and Installation
(4x2)" or AT-247, "Removal and Installation (4x4)" .
28. Lift using hoist and secure the engine in position.
29. Remove the engine assembly from the vehicle, avoid interfer-
ence with the vehicle body.
CAUTION:
Before and during lifting, always check if any harnesses
are left connected.
30. Remove the parts that may restrict installation of the engine to the engine stand.
NOTE:
This procedure is described assuming that you use an engine stand mounting to the surface to which the
transmission mounts.
a. Remove the drive plate.
Holding the crankshaft pulley bolt, lock the crankshaft to remove the drive plate bolts.
Loosen the bolts diagonally.
WBIA0464E
Engine slinger torque: 45.0 N·m (4.6 kg-m, 33 ft-lb)
PBIC1556E

Page 1974 of 3419

INFINITI QX4 2005 Factory Service Manual ENGINE ASSEMBLY
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Revision: October 20052005 QX56
CAUTION:
Be careful not to damage the drive plate. Especially
avoid deforming and damaging of the signal plate teeth
(c

Page 1975 of 3419

INFINITI QX4 2005 Factory Service Manual EM-72Revision: October 2005
ENGINE ASSEMBLY
2005 QX56
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
When replacing an engine or transmission you must make sure the dowels are

Page 1976 of 3419

INFINITI QX4 2005 Factory Service Manual CYLINDER BLOCK
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Revision: October 20052005 QX56
CYLINDER BLOCKPFP:11010
Disassembly and AssemblyEBS00LMJ
WBIA0471E

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