Bleeding Drum Brakes?

you need a helper-one has to pump the brakes 5-10 times-then hold the pedal to the floor-while the pedal is down open the bleeder valve -then tighten the valve back up before you let off the brake pedal-if you just open it and pump the brakes your gonna have alot more air and time into it than when you started-just repeat this process over and over untill no air bubbles come out and you have a nice stiff pedal-if its the pedal is soft or spongey try to bleed them again-also holding a finger over it wont build up pressure to get the air out-still gonna have problems

try loosening the bleed bolt and pump the brakes several times. Then press the brake pedal to the floor and hold it. Either have someone tighten the bolt or prop the pedal to the floor and tighten it. Repeat several times until you see fluid comin out of the bleed bolt. You will have to keep refillin you brake fluid resevoir as the fluid circulates through the system. Sometimes there might be a slave cylindar in line with the back breaks with a bleeder valve as well. Check to see if there is one and see if it has fluid to it.

You either need a helper- one guy pumps the brakes while the other holds his finger over the open bleeder screw until only fluid comes out;

or, use a vacuum pump with a collection cup. Pump until no air bubbles come out.

Can You Bleed Drum Brakes