DOORSTOP DAMPER
When cutting valve margins down, we use this simple rubber doorstop as a damper to help reduce chatter as we cut the face. We keep various size guides, and washers with it to clamp the valve in the lathe. Using the tail stock, you can press the valve in before tightening to put more pressure on the damper.

Adam Cofer
Don Ott Racing Engines
York Springs, PA
FEB, 2022