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Re: moved post--lee
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Posted by CNKS on January 31, 2005 at 14:17:24 from (204.249.178.138):
In Reply to: Re: moved post posted by CNKS on January 31, 2005 at 13:36:02:
lee, you reminded me of something in one of your posts, where you mentioned the rocker tip being hardened. The tips themselves are maybe 1/8-3/16 inch thick. Looking at them again, the middle part is shiny, the edges are dull, almost as if the tips were hard surfaced, and the surfacing is wearing off, leaving the original metal underneath. If that is the case, I believe the valve stem contacts the tip over the full radius?--shiny and dull. Looking closer, the 20-30 degree edges I referred to is not correct (dunno why I said that, obviously wrong), it is more like 10 degrees, the "sharp" edges are where the shiny area ends and the dull area begins. There are no two alike. There is also a peak in the middle of the shiny area, where the tip moves the valve to the maximum opening, it is not a perfect semicircle, if it should be. It is not worn off in that area.
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