IQuiltnFL,
The Wizard I have was rusted tight on the needle bar end. I got it free by heating certain parts with a torch as I pumped oil into it.
It is now very easy to turn. It needs the bobbin case retainer replace as that was broken when I got it. But it will work as is. All I need to do is double check the timing, clean it a bit more, and reassemble the small bits I took off to clean.
It should sew. But I have no idea of how good, or how quiet.
If your Wizard has a clunk somewhere I'm thinking something is hitting something. Just a guess. Or something hasn't got oil to it yet.
I know about hard to find noises, my last 413 still clatters and rattles and I have not been able to find the cause. I told my wife we should make a quilt and ZZ all the seams with that machine, pushing it till it divulges it's secret or breaks.
Joe