What is the best way to remove carbon buildup from valves? I can get the faces clean by using a fine wire brush mounted in a drill press. The backsides of the intakes have a pretty good build up, and the brush really doesnt want to take it off too quick. Is there something I can soak them in?
Back in high school I was a "Gofor" for the local mechanic. Cleaning valves was one of the shit-jobs, so naturally I got elected to do it most of the time. We used a wire wheel on a pedestal grinder. Just watch your fingers; those wire brushes aren't exactly vegetarian...
as yorgi said hoppes# 9 works good i usually use a fuel additive STP or berrymen makes a good one, the stuff you are supposed to add to your gas tank. use it full strength. i use a old muffin tin, put just enough in each cup to submerge the head of the valve, let it soak overnight.
never heard or Hoppes #9 is it an east coast item or something, or is it readly availble at pepboys? I've got some harley heads I'd like to try that stuff on.
[ QUOTE ] never heard or Hoppes #9 is it an east coast item or something, or is it readly availble at pepboys? I've got some harley heads I'd like to try that stuff on. [/ QUOTE ] Try your local gun shop No. 9 I just have the small bottle in the cleaning kit. I'll have to go out and get some more.
Spray gasket remover will remove built up carbon on valves, and piston tops. Brake clean to finish up.
Chuck the valve itself in the drill press. Hold screwdriver against spinning deposits. Eat grit. By the way, I've never tried this but I've heard immersion in water for a few hours will really loosen up carbon crud on old pistons. Anyone tried it?
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