captinjohn,

I've used the ol' crock pot method several times in the past, always with great results. As a matter of fact, it's the only way I clean my engines now. The most impressive was an old Enya .09 glow engine with allot of baked on castor oil. After cooking away for a couple days in the pot it looked brand new! I've also used this method on big gas engines with the same great results.

One thing I'd like to mention is the type of radiator fluid I use. I don't know if it is just for safety reasons, or if it actually has something to do with the chemical make up? But before trying out this method, all my research pointed to the newer Eco-friendly kind of anti-freeze producing the best results. Unfortunately, I'm not home right now, and I don't remember what the actual brand I use is. If you are interested, I can check when I get home.

Something else I'd like to mention, if you haven't tried this method before, is to be patient. Most engines will be clean in a day or two. But I've had some take 4-5 days to look new again.

Good luck!

Mark