Don't be surprised when you get it all rebuilt that it still sounds a bit like that. One area where Gottlieb definitely beat Williams was the chimes. Gottlieb chimes are very mellow and melodious, they sound great. Williams chimes, even when rebuilt to the best you can make them, are still clanky. Even Bally's chimes are better. I've rebuilt several Williams chimes units and they are just that way. I never could eliminate the clanky sound they make. They just won't ring like a Gottlieb unit will.