Join Date: Oct 2010
Location: Charlotte/Harrisburg NC
I have already cleaned all the carbon off the heads and intake valves - they cleaned up very nicely. The face of the exhaust valves are another story. Seafoam, WD-40, carb cleaner, contact cleaner, paint stripper, naptha, nothing has cut it yet. It is harrrrdddddd.
I put an old sparkplug in the heads, turned them valve face up, tilted them so that the face of the exhaust valves would be submerged and soaked them using the above solvents to try to soften them, but no luck in the time I had so far. They probably soaked for two hours in various solvents.
When I take the valves out of the heads, I will try mechanical means to clean them.
Thanks for everybody's input.