clean up
 

Is there anyway to clean the coking off the bearing houseing?So they can be re-used or are they worth less.

Re:clean up
 

Are you talking about the outside of the chra? If so, brake cleaner and a wire wheel/wire brush work well. If you really want to do it right, take it all apart and sandblast it, but if you're doing that, you may as well rebuild it.