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Old 03-07-2020, 07:07 PM   #5
Russ/40
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Join Date: May 2010
Location: Santee, California
Posts: 3,505
Default Re: It's Friday. Crusty Flatty Pt17. Some assembly at last!

Mart, like the way you did the valves, including your wheel technique. I also did a set recently where I used the stem grinding technique for the first time. I approached it differently, not better or as well, but differently for anyone liking to see another way.
I purchased a new fine grinding wheel. I made an arbor for the stone and chucked it up in the lathe. I then trued the stone to spin perfectly true with a diamond dresser. Next set a tool holder to hold the valve true with a run-out gauge. When grinding the valves I ran the stems across the full face of the stone so the stone would not degrade as I went. Got close with the lathe, as you did, then hand ground the final .001" or so with a piston ring grinder. Having a lathe sure helps in many situations. Keep shareing your adventure, its like not having to work alone. Photos of my setup. Worst part was cleaning up the lathe with all that grit ending everywhere.
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