pvcmaster wrote:The original topic of this post was sealing faces, so I thought I would slip in a question. My piston has a diameter of 2" and it is sealing against a piece of 1.5" pipe. Is the difference between the O.D. of 1.5" (Which is 1.900") and the piston enough to open the valve?
Yeah it'll be fine, technically you can have no 'open' area on the sealing face to make it work, but it's always good to have some.
spudy buddy wrote:ok it was just an idea. most people somehow keep the bbs from falling out of the barrel anyone know how?
Do you mean out the back of the barrel where the piston seals?
Just put a tiny blob of epoxy or hot glue at the back.