The wear makes them difficult to adjust with a feeler gauge. There are articles in the old or tech area that explain how to do it by turns of the screw.
Machine shops can refinish the tips smooth again. I've known some people to hit them with a low grit grinding wheel. Some of the Y's Guys could weigh in on that! John/Ted??? Chuck in NH
Y's guys rule!
Looking for McCullouch VS57 brackets and parts. Also looking for 28 Chrysler series 72 parts. And early Hemi parts.
MoonShadow, 292 w/McCulloch, 28 Chrysler Roadster, 354 Hemi)
Manchester, New Hampshire