2004 INFINITI QX56 Factory Service Manual

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INFINITI QX56 2004  Factory Service Manual EM-86Revision: August 2007
CYLINDER BLOCK
2004 QX56
When Cylinder Block and Crankshaft are Reused
1. Measure inside diameter of cylinder block main bearings housing and outside diameter of crankshaft

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INFINITI QX56 2004  Factory Service Manual CYLINDER BLOCK
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Main Bearings Selection Table (No. 2, 3 and 4 journal)
WBIA0609E

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INFINITI QX56 2004  Factory Service Manual EM-88Revision: August 2007
CYLINDER BLOCK
2004 QX56
Main Bearings Grade Table (All Journals)
Unit: mm (in)
Use Undersize Bearing Usage Guide
Use undersize (US) bearing when oil clearance with standar

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INFINITI QX56 2004  Factory Service Manual CYLINDER BLOCK
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Inspection After DisassemblyEBS00ILZ
CRANKSHAFT END PLAY
Measure the clearance between the thrust bearings and the
cranks

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INFINITI QX56 2004  Factory Service Manual EM-90Revision: August 2007
CYLINDER BLOCK
2004 QX56
Piston and Piston Pin Clearance
(Piston pin clearance) = (Piston pin hole diameter) – (Piston pin
diameter)
If clearance exceeds specification, r

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INFINITI QX56 2004  Factory Service Manual CYLINDER BLOCK
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If out of specification, replace piston ring. If gap still exceeds the limit even with a new ring, re-bore cylin-
der and

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INFINITI QX56 2004  Factory Service Manual EM-92Revision: August 2007
CYLINDER BLOCK
2004 QX56
Piston Pin Diameter
Measure diameter of piston pin using suitable tool.
Connecting Rod Bushing Oil Clearance (Small End)
(Connecting rod small end

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INFINITI QX56 2004  Factory Service Manual CYLINDER BLOCK
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MAIN BEARING HOUSING INSIDE DIAMETER
Install the main bearing caps with the main bearings removed,
and tighten the bolts