brakes will not bleed

[750chop]

I replaced the master cylinder, tightened everything up, and now i can not get the left front(new) caliper to push any fluid at all. Even tried the one man bleeder and it will suck fluid out, but no pressure is building up at all. Pissin me off.

[90LXCB7Newbie]

what happens when u go to bleed it,
does the bolt not loosen?
is it clogged or sumin?

do the other 3 wheels bleed correctly?

[jimy]

Did you pre bleed the air out of the main master cylinder?

[Karl]

Witht the bleed screw loose the system should gravity bleed without problem, if that does not work try removing the line from the caliper and see if any fluid comes through the line.

[mayberry]

Open the bleeder, have someone push the brake pedal down. Close the bleeder, have them take their foot off the brake. lather, rinse, and repeat.

[johnl]

Remove the bleeder nipple and check that it isn't clogged with crap. They sometimes are, especially if the rubber dust cap has been lost.

[750chop]

i figured it out. turns out the master cylinder i bought was garbage. put the old one back on and replaced ALL the fluid and its good as new