Car in question is my 72 Dart. It has factory manual drum brakes on all 4 corners.

The car has been sitting since about last summer,and I just got it back running yesterday.

Im having some issues with the brakes.Upon pushing the brakes when I first got it running again,the pedal went to the floor. I checked the fluid,and the rear reservoir(closest to the firewall) was empty. I topped it off with some fresh fluid,reinstalled the cap on the master and proceeded to push the pedal again. It still wnet to the floor,until I pumped it up.I had pedal,pretty low,but I had pedal.

I took off driving around the area(slowly) and when I went to brake,the pedal went to the floor again. I could pump them up to slow down but they would always go to the floor the next time I needed to brake.

So now I check the fluid and its still full.

Where do I start research on this issue? Does it sound like a Master Cylinder issue or a wheel cylinder issue?


Or is it as simple as bleeding either the master,the wheel cylinders or both?