QX56 AWD V8-5.6L (VK56DE) (2005)
Camshaft: Testing and Inspection
INSPECTION AFTER REMOVAL
Camshaft Runout
1. Put V block on precise flat work bench, and support No. 1 and No. 5 journals of the camshaft.
2. Set dial indicator vertically to No. 3 journal.
3. Turn the camshaft to one direction, and measure the camshaft runout on the dial indicator (total indicator reading).
Standard: Less than 0.02 mm (0.0008 inches)
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If measurement exceeds specification, replace the camshaft.
Camshaft Cam Height
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Measure the camshaft cam height.
Standard cam height (intake & exhaust): 44.465 - 44.655 mm (1.7506 - 1.7581 inches)
Cam wear limit (intake & exhaust): 0.02 mm (0.0008 inches)
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If measurement is not within the specifications, replace the camshaft.
Camshaft Journal Clearance
Camshaft Journal Diameter
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Measure the diameter of the camshaft journal.
Standard diameter: 25.953 - 25.970 mm (1.0218 - 1.0224 inches)
Camshaft Bracket Inner Diameter