Cylinder Head Distortion
Cylinder Head DistortionNOTE:
When performing this inspection, cylinder block distortion should be also checked. Refer to EM-120, "Inspection". Inspection
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-141, "Cylinder Head". Cylinder Head Distortion
If it exceeds the limit, replace VVEL ladder assembly & cylinder head assembly.
NOTE:
Cylinder head assembly cannot be replaced as a single part, because it is machined together with VVEL ladder assembly.