"Steve B" wrote in message
...
I got a used Motor Guide Brute.. Where the SS (?) chromed shaft goes
through the aluminum clamp, it is firmly in there. I cannot get it
to twist. (Yes, yeah, I did loosen the nuts.) I put some sewing
machine oil on there and left it to flow vertically. Is PB Blaster
better? Should I put a pipe wrench on it? Waiting for it to move on
its own rather than brutalizing it. IT doesn't appear, even with
dissimilar metals that there is any galling, and this is a freshwater
application.

Steve
I would be surprised if that shaft was Stainless Steel.