Cylinder Head Distortion

Cylinder Head Distortion

NOTE:
When performing this inspection, cylinder block distortion should be also checking. Refer to EM-138, "Inspection After Disassembly". Inspection After Disassembly

Using a scraper, wipe off oil, scale, gasket, sealant and carbon deposits from surface of cylinder head.

CAUTION:
Do not allow gasket fragments to enter engine oil or engine coolant passages.





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.