Im taking apart an old asp .40 nitro engine. this is my first time taking apart and putting back together an engine. what is a good way to clean off all of the old fuel and crude. right now im soaking it in a bucket of water and dish soap. then i plan on drying it out and using marvel mystery air tool oil. can i use rubbing alcohol to get rid of the crud? any info would be appriciated.

take it out of the water as soon as possible, put it in fuel, this will remove or at least loosen anything not rust.

Ther are many threads in the engine forum on this topic.

Try this one [link=http://www.rcuniverse.com/forum/m_7962214/anchors_7962214/mpage_1/key_/anchor/tm.htm#7962214]CLICKY[/link]

just switched them, now have them soaking in some fuel

I had an old OS 61 SF that I bought at an estate sale. It was pretty gummed up and I wasn't sure if it would run. Well, I put it in a bucket, poured some old fuel over it, covered it, and let it set for about a week. I took it out, drained it real well, put it on a starting block, fueled up a tank, and started it. It ran just fine.

Shows that there is life in those old engines.

CGr.

Dawn Power Dissolver. And I suggest a complete disassembly just to be certain. It isn't that hard.