[Amark]

I don't think you want to use any kind of abrasive cleaner. Go buy a can of Berryman B-9. Take them apart and soak the parts in B-9 overnight. The stuff is toxic so don't get any on your hootus.

This site will help you:

http://home.earthlink.net/~500lbgorilla/idf/idfsetup.htm