master won't work

I rebuilt the master cylinder cleaned it with alcohol blew out all the openings but now it won't pump any fluid, kit was the same as what came out and I did bench bleed it. Any suggestions?
thanks
Bruce

will the alcohol hurt the seals Bruce, and did you throw air at it after you
rebuilt it ? did you compare the kit very closely ? I seen one taken apart
for powder coating and never rebuilt one myself, but from what I seen I
don't think I would rebuild one... Good luck