I will be shortly getting my hands on a new (old) engine. It is a Super Tiger .45 ABC. It is covered with years of glow fuel, and dirt. It is pretty well stained too, but I am not too worried about that. Mostly I just want to get the "loose" dirt off the engine. Apart from just brushing it down with a toothbrush, is there any type of cleaner you would suggest.

I have read about things like boiling in antifreeze. I am looking for some less toxic. I am also not interested in taking the engine apart. Mostly I am looking for a nice simple surface clean.

Any suggestions would be appreciated.

Thanks