The only thing pushing that clutch pin from the slave cylinder is a tiny clip on the shaft. I was amazed that was all there is to it. It fits inside the small taper if the bearing on that plate Grumpy mentioned.
We had to remove the cover on the clutch master cylinder and suck out some fluid so the slave cylinder would bolt back up to the back of the engine.
Wonder what your situation was?
Hay

Jimmyt
Mine I am sure is that I did not compress the slave cylinder all the way in when all was said and done. I kept looking at the clutch instead of the slave cylinder. When replacing the cylinder, it would not snug up and there was a quarter of an inch gap. Finally reclamped it and that is when it went in. Talk about mud in your face feeling.