Fan Belt Tensioner

[florida Brian]

Gilly:

I see the nut and the rod it all looks together no breaks and is attached the the cam on the back of tensioner. Looks like there are two threaded pieces the rod runs though. The top nut seems to be in the top of the Flange the rods and nuts go throgh. looks like this flange has a smaller part that the nut pushes on, I can not get the nut or nuts to loosen to see if this is the problem.
Is there two threaded peices that ride on the THREADED RO?

Tried to split the nuts and was unable to do so. Thoght maybe one was supposed to be on top in groove in flange?

Thanks Brian