A long time back, I purchased a couple of brass freight car models which some bozo had performed expedient repairs of broken solder joints with Super Glue or some other ACC. There are some spots of glue on the paint, but even worse, in one place sufficient glue was used to fill a cavity and the head of a tiny Phillips head screw. I suspect the underframe may be glued to the body in places as well. And of course the repairs didn't even last! Since I'd like to remove the underframe to properly re-solder the detached parts, I need to get that screw out. Is there a chemical solvent or de-bonder that might assist my job. I'd prefer to avoid drilling the screw out. Thanks in advance.

Kind regards, Rob Adams