Quote:
Originally Posted by Bored&Stroked
Hey Gary - is he saying there is a crown on the top of the actual adjusting nut? Or a crown on the bottom of the lifter? I don't see any reason that a crown on the nut is needed, but I definitely understand why a taper/crown on the BOTTOM of the lifter is needed.
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I'm curious about this as well. Why would a crown be needed to make contact with the bottom of the valve stem?
I have original Johnson's refurbished by the later Ron Furtado and a few sets by JWL. If I recall, the tops of the screw heads are perfectly flat.