On Apr 26, 7:45*pm, "Steve B" wrote:
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

Apply heat to the aluminum collar. It will expand, and that could do
the job.