Rear brake pad replacement issue

[chi]

Turning the rear right piston clockwise is not moving it in. Left side was no problem. What might be the issue? Any tips would be appreciated!

 

[Pete]

Turning the rear right piston clockwise is not moving it in. Left side was no problem. What might be the issue? Any tips would be appreciated!

Open the bleeder valve to help compression. As sometimes you really have to push it hard while turning

 

[chi]

Thanks Pete! Unfortunately, that didn't seem to help. I wonder if the threading was crossed somehow. Might have to replace the calliper all together. not really sure yet.

 

[JTP]

I had the same issue on both. Spinning it didn't do anything even with the bleeder open for me as well. I had to use excessive force with the brake tool that has the plate and the end that spins. Not sure why it was that way as I have never had issues before with any of the twist type of rear calipers.

Edit: Wonder if I roasted them from my track day since I did get excessive fade after the first session to the point of no brakes until halfway down even in the pits after cooling off for an hour.