Cylinder Head Distortion
Cylinder Head DistortionNOTE:
When performing this inspection, cylinder block distortion should be also checking. Refer to EM-148, "Cylinder Block". Service Limits and General Specifications
Using a scraper, wipe off oil, scale, gasket, sealant and carbon deposits from surface of cylinder head.
CAUTION:
Never 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 (A - F).
Limit Refer to EM-146, "Cylinder Head". Cylinder Head
If it exceeds the limit, replace cylinder head.