2004 INFINITI QX56 Factory Service Manual

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INFINITI QX56 2004  Factory Service Manual EM-62Revision: August 2007
CYLINDER HEAD
2004 QX56
Disassembly and AssemblyEBS00ILU
* Refer to GI-45, "Recommended Chemical Products and Sealants"  .
DISASSEMBLY
1. Remove spark plug. Refer to EM-27,

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INFINITI QX56 2004  Factory Service Manual CYLINDER HEAD
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7. Remove valve oil seal using Tool.
8. Replace valve seat if necessary. Refer to EM-68, "
VALVE SEAT REPLACEMENT"  .
9. Re

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INFINITI QX56 2004  Factory Service Manual EM-64Revision: August 2007
CYLINDER HEAD
2004 QX56
8. Install valve collet using Tool. 
CAUTION:
When working, take care not to damage valve lifter holes.
9. Install valve lifters.
Install removed pa

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INFINITI QX56 2004  Factory Service Manual CYLINDER HEAD
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VALVE DIMENSIONS
Check dimensions of each valve. Refer to EM-65, "VA LV E
DIMENSIONS"  .
If dimensions are out of the sta

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INFINITI QX56 2004  Factory Service Manual EM-66Revision: August 2007
CYLINDER HEAD
2004 QX56
VALVE GUIDE CLEARANCE
Valve Stem Diameter
Measure diameter of valve stem using suitable tool.
Valve Guide Inside Diameter
Measure inside diameter of

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INFINITI QX56 2004  Factory Service Manual CYLINDER HEAD
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2. Remove the valve guide using suitable tool.
CAUTION:
Cylinder head contains heat. When working, wear protec-
tive equipm

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INFINITI QX56 2004  Factory Service Manual EM-68Revision: August 2007
CYLINDER HEAD
2004 QX56
VALVE SEAT CONTACT
After confirming that the dimensions of valve guides and valves
are within specifications, perform this procedure. 
Apply prussi

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INFINITI QX56 2004  Factory Service Manual CYLINDER HEAD
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6. Grind to obtain the dimensions indicated as shown.
Using compound, grind to adjust valve fitting. 
7. Check again for n