There are specialists out there for just this type of thing who things such as pouring liquid nitrogen down the seat tube area via the now empty BB into to seat tube to cool it. Nothing worked for mine, but then I am never selling the frame so giving up didn't matter too much.
Yeah I was told that by doing this you fuck up your frame significantly and make it essentially worthless. So was gonna try out some DYI first and seek opinions here!
There are specialists out there for just this type of thing who things such as pouring liquid nitrogen down the seat tube area via the now empty BB into to seat tube to cool it. Nothing worked for mine, but then I am never selling the frame so giving up didn't matter too much.