Avid juicy three piston popped out when bleeding without block So, First time bleeding juicy three brakes. I bought a cheap bleeding kit, didn't use a bleed block and the piston was pushed out.Feel a little stupid now. 

Pushed piston back in and let the excess fluid out but now there is no reaction from the brakes. The lever goes to the bar. Are the brakes useless? They are about five years old avid juicy threes.

Thank you.
You should just need to re-bleed them. Happened to me a few weeks back late at night before an Enduro the next morning. Bled them and they were good as new.