It might be because it is old, but I had the sprue plate pivot screw snap on an old Yankee SC mold while casting the other day. The mold blocks are unitized like the original Ideals, and not separate like we are used to seeing them nowadays. Anyway, It snapped off flush with the hole and it's not moving. Please don't tell me it's a simple fix, "all you gotta do is...."
I know my limitations in my old age; I've screwed up enough stuff and I'll let somebody else do this the right way.
Now, the question is: who do I send this thing to?