Yeah I'm lost I've been banging on it and soaking it in penetrating lube and its not budging. Haven't added any heat or cool (I do have a fresh tank of r22 on my balcony). Thinking I might call a couple mechanics I know and see if they might have a special tool I have a buddy that has 5 snap on large chests completely full if its a specialty tool that nobody has and shops have to rent he usually owns it. Thanks for the info though hopefully somebody else will chime in with a remedy.