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Home >> Nissan-Datsun >> 2007 >> Frontier 2WD L4-2.5L (QR25DE) >> Repair and Diagnosis >> Specifications >> Mechanical Specifications >> Engine >> Cylinder Head Assembly >> System Specifications >> Service Limits & General Specifications
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Service Limits & General Specifications

Cylinder Head Distortion

NOTE: When performing this inspection, cylinder block distortion should be also checking.

1. Wipe off engine oil and remove water scale (like deposit), gasket, sealant, carbon, etc. with a scraper.

CAUTION: Use utmost care not to allow gasket debris to enter passages for engine oil or engine coolant.





2. At each of several locations on bottom surface of cylinder head, measure the distortion in six directions.
Limit: 0.1 mm (0.004 in)
^ If it exceeds the limit, replace cylinder head.





CYLINDER HEAD


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