I had posted to Phil off list, but may as well chime
in - they also look like the ones I got from Ted
Schumacher, file to fit, very irritating. I wouldn't
buy them again. I did verify the rolling action, but
that's in new condition. I could see any degradation
leading to what Mike describes.
--- Michael D Myers <mdmyers_ct@juno.com> wrote:
> it usually has too much friction on the ID to roll
> and slides across the
> valve tip. To make matters
> worse, the OD curvature is much tighter than the
> normal rocker tip which
> leads to valve stem pitting
> from higher contact stresses. The lower stiffness of
> aluminum vs. steel
> also makes me think these
> may be more flexible than the stock rocker.
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