Topic: brake help

[GrenadedToy]

ok, so i started to bleed my brakes today, and i got to the right front side and opened the nipple and got in and started pumping(i have a 1 man brake bleeder) and there is fluid coming out, but then it stops. disconnect the start of the line that goes into the master cylinder and its dry. no fluid. the master cyl is full of brake fluid so thats not the problem. i got a free 2wd master cylinder that works. can i throw this on there if its the master cyl that is the problem? any ideas why the line is dry? 

[kneedownnate]

Chunk o sludge?  And yes, the 2wd mc will essentially work, you just might hafta convince a couple of lines that they fit.