Stuck stem in Schwinn mixte
I’m at the start of restoring an 80s Le Tour II and I’m unable to remove the stem. I’ve banged it with a hammer a few times and used WD 40. To no avail. The fork just won’t drop after unscrewing the top bolt. I’ve haven't worked on a vintage rig in some time so I’m wondering if I’m doing something wrong or if the issue a fatal flaw. Thanks for any advice!
(PS I took a picture of the stuck stem but I don’t know how to create a url for it on my iPhone)