QX56 AWD V8-5.6L (VK56DE) (2005)
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Refer to "Connecting Rod Bushing Oil Clearance (Small End) for the values for each grade at the plant.
PISTON TO CYLINDER BORE CLEARANCE
Cylinder Bore Diameter
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Measure the cylinder bore for wear, out-of-round and taper at six different points on each cylinder. ("X" and "Y" directions at "A","B" and "C")
NOTE: When determining cylinder bore grade, measure cylinder bore at "B" position.
Standard diameter: 98.000 - 98.030 mm (3.8583 - 3.8594 inches)
Wear limit: 0.20 mm (0.0079 inches)
Out-of-round (Difference between X and Y):
Limit: 0.015 mm (0.0006 inches)
Taper limit (Difference between A and C):
Limit: 0.010 mm (0.0004 inches)
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If measured value exceeds the repair limit, or if there are scratches and/or seizure on the cylinder inner wall, hone or bore the inner wall.
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An oversize piston is provided. When using an oversize piston, hone the cylinder so that the clearance between the piston and cylinder satisfies the
standard.
Piston oversize Grade No. 0 (Service): 0.20 mm (0.0079 inches)
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If oversize piston is used, use it for all cylinders with oversize piston rings.
Piston Skirt Diameter
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Measure piston skirt diameter using suitable tool.