Rear Brakes

[pontiacgp]

there has been a single brake line that is split at the rear axle long before these cars were built

 

[LilSpann601]

if there is a single line and it splits....does it still seem like its the porportional valve if im getting fluid at the right rear but not the left rear

 

[pontiacgp]

how much fluid are you getting out of the right side?

 

[LilSpann601]

I was able to get a clear hose on the nipple and losen it and it started to feel up in the tube after pumpin the brakes...

 

[pontiacgp]

if you are working on your own I'd jack up the front of the car as high as you can and open the right bleeder and let it gravity bleed. Once you have a good steady flow from the right side I'd close that bleeder and open the left. Remove the cap for the master cylinder and put is back on loose.

 

[LilSpann601]

I tried jacking the front high as possible...now im not getting any fluid out of the rear bleeder valves...the front bleeder valves are squirting fluid.

 

[pontiacgp]

are you pumping the brakes with the bleeders open?.....when you replaced the rear cylinders did you let the reservoir go dry?

 

[LilSpann601]

Yes im pumping the brakes with the bleeder valve unscrewed a few times. When I replaced the rear cyliders the reservoir still had fluid

 

[truracer20]

Every time you let off of the brake pedal you need to close the bleeder first. Otherwise it will suck air into the bleeder, and it causes the master cylinder to refill the piston bore from the line instead of the reservoir.


How close are the rear shoes to the drum? Too much clearance can be an issue. If all of the fluid volume moved in one pedal stroke doesn't cause the shoes to contact the drum or does but just barely, the problems you describe can be the result. A bad rubber frame to axle hose can cause flow problems to the rear brakes. A bad master cylinder can cause issues as well.

 

[pontiacgp]

don't pump the brakes with the bleeder loose if you don't have anyone to help you. You can buy speed bleeders if you are working by yourself.

good, I see trueracer has jumped in...