[denisond3]

To get the drums off my Escort, I heated the drums with my acetylene torch - right close to the center hole; along with banging sideways on the drum surface, and tapping fairly hard agains the back edge of the drum. Its just to get the drum started off of that hub - where the hole in the (unrusted) drum is -exactly- the same diameter as the unrusted raised part of the hub. The screw threads in the side of the drum to help with drum removal had already been stripped out on my drums. Before I put the drums back on I lightly filed the hub and the center hole in the drum.
The couple of times I have had the pedal go to, or close to the floor - it was failure of one half of the dual brake system. If the failure was in the master cylinder, the only place you might see brake fluid, would be on the inside of the vacuum line from the booster to the intake manifold.
Once though, the car had been sitting for a couple of weeks, and one side of the master cylinder was empty. The brake pedal went almost to the floor, when the other half of the brake system would still stop the car. It took a lot more pressure though. It was due to a brake line with a pinhole in it, up beside the fuel tank. After filling the m.c. reservioir and holding the pedal down with the engine running, I was able to see the brake fluid getting the line wet underneath the car, but I didnt locate the actual leak in the line until I pulled the line out - and replaced it.