I started cleaning the valves and ended up soaking them then using the drill press and a brass wire wheel in a hand drill to finish the job. This actually worked pretty well and took about 2 days of soaking and 5 minutes per valve to clean them up. I used a piece of rubber hose to keep the valve in the drill press without marring it.I tried using Gum Cutter and B-12 Chemtool to see which would work better. The Chemtool ate the carbon quicker and seemed to do a better over all job of breaking it down. I did not have to soak the exhaust valves just the intake side.
Before and After
All Clean. Two needed to soak more.
- Get a drill press/drill with wire wheel or drill/bench grinder
- You will want a brass wire wheel as it will not hurt the valve.
- Get some rubber line and put it over the valve stem.
- Insert the valve into the drill press and clamp down but not crazy.
- Turn the drill press on then clean it up with the drill.
- Shiny valves



Before and After


All Clean. Two needed to soak more.
