In this video we check cylinder heads for our 7.3 liter IDI turbo diesel build. We check them for cracks with magnetic particle testing or magnafluxing and then check them for cracks with dye penetrant testing, also known as zyglo testing, another method of non-destructive testing. We also use a straightedge to check to see if the cylinder heads are warped. In addition, we inspect the bore of our 7.3 IDI block to see if it has a ridge or not.
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