Clutch master cylinder II

[SandejasI]

Is the clutch master supposed to rebound when you bench bleed it??
I thinks it should but the one I have(sat around for a while) is not. You
push it in, and in it stays. I'm going to rebuild it but I just want to make
sure..

Thanks,
Iggy Sandejas
Sydney NSW
Datsun 1600 FJ20t