I got a VCR that was in a house fire, and it's video drum has smoke
damage.

It doesn't feel smooth, but isn't rough enough to where it seems to be
damaging tapes. Matter of fact, it records and plays just fine.

But I want to clean the drum. How can I clean it?

Here is the condition of the drum: http://img.photobucket.com/albums/v3...n/tapehead.jpg