bleeding brakes

[bob dog]

this gravity bleed do,es it realy work i left the valve open for hours and got nothing so i undid it at the rear T got a drip how can it work when the line go,s up down over the top of rear end haveing trouble getting the air out even bleeding with to pepole finished the rear disc conv thinking masters wrong or prop valve master power brakes kit is nothing but trouble

[Moparal]

Take  a rubber hose and attach it to the bleeder screw. Then put the other end in a 1/3 full jar of some sort with brake fluid in it. Then pump the pedal a couple of times. It will push the air out and not let it back in

[Chryco Psycho]

 
 I have found gravity bleeding wil work to a point but you still have to pressure bleed