01-11-2020, 10:06 AM
I have a Black & Decker Vibo-Centric valve seat grinding tool, very old but functional. It's a similar idea to the above with rotating stones driven by a drill to grind the seats.
The key thing is that you need to use it for just a few seconds on each seat as it will remove the material very quickly. If you overdo the grinding, you'll end up with a bill for putting inserts in!
The key thing is that you need to use it for just a few seconds on each seat as it will remove the material very quickly. If you overdo the grinding, you'll end up with a bill for putting inserts in!