Bleeding brakes

[Jeff Adams <ledman_70@xxxxxxxxxxx>]

I just installed a rebuilt master cylinder in the 65 Dart yesterday and 
I can't pump the brakes up to bleed them. The old mc worked, but 
sometimes the pedal would go to the floor, then pump back up. Bled the 
brakes, no air, so I figured it was the mc. The new lone won't even pump 
up at all. Bench bled it per instructions first,no bubbles. Had the wife 
helping me. If I plug the mc with the supplied plug the mc will build 
some pressure, but as soon as I attach the line it looses all pressure. 
I don't seen any leaks and like I said, the brakes worked before. I'm 
thinking bad mc.....any other opinios? What am I missing?
Thanks

Jeff Adams
64 Polara


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