Correct stone type for engine valve seat grinding?

steve-l · Feb 17, 2019

I am not sure which stone to use for grinding engine valve seats. I have a Walter Krupp PEG 10 valve seat grinder. It is a very nice grinder, but I need to buy some new stones. They offer both corundum and silicon carbide. What stone should be used for what valve seat? I have gotten excellent results with both, but I have no idea what should be used where. Some help would be appreciated.

moonlight machine · Feb 17, 2019

I just call Goodson Co. They have stones for any seat material and can answer any question. 800 533 8010

Toms Wheels · Feb 17, 2019

If the seat a stellite inserts, SG would be the choice. That is if your cutting many a day. standard stones will cut stellite seats, just need to dress more often.

If this is occasional use the standard stones.

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Correct stone type for engine valve seat grinding?

steve-l

Titanium

moonlight machine

Diamond

Toms Wheels

Titanium

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