No rear brakes-no fluid or pressure & hard pedal 71 E-Body

[Mopargary]

I have a 71 barracuda with power F&R drum brakes.

I replaced wheel cylinders, shoes & turned drums.

No brake fluid & no pressure to the rear brakes.

I have bled all four wheels & then tried bench bleeding master cylinder.

I have a new master cylinder coming.

Any ideas?

[Jamiez]

How do you bleed the rear brakes with no fluid?

I would probably crack open the rear hard line where it transitions to hose before the rear axle and see if you have fluid there.  If not then check the proportioning valve to see if fluid is going out the the rear hard line.

Maybe something is stuck internally int he prop valve?  You could soak it in evapo rust or a similar product and maybe that will free it up.  You could also try a few hard pumps of the brakes to see if that does it.

[Jesus H Chrysler]

If you are getting ZERO fluid to the rear, check or replace the rubber line going from the frame rail to the rear axle.  The rubber deteriorates over time and can block up stopping your fluid.  Then check the hard line front to back and over the axle to make sure it's not pinched, kinked etc.

If the lines are good, and you are getting fluid but no pressure try getting one of these:

http://www.harborfreight.com/brake-bleeder-and-vacuum-pump-kit-69328.html

You can bleed your brakes by sucking the fluid through.  That way if you have an impossible bubble somewhere so you cant generate a pedal, this should suck it out and get solid clean fluid through.

Remember to thoroughly bench bleed the new MC when you put it in.  This is key since the pedal can't get the MC through full stroke so you will always have a bubble trapped there.