I am having trouble with my front Hayes brake. I am leaking fluid like crazy, and I believe that the fluid is coming from inside the piston. Is this possible? I have tightened the bleed screw, the coupler, and have bled the brakes 3 times in the past week. I know that something is going on with the brakes but I am having a hell of a time finding it. Does anyone have any suggestions? I got the brakes from this website's classified section, and they were supposedly new. I do believe that they were new when I got them, or at least in excellent condition. Can the calipers be rebuilt? What is required for a rebuild? I am sure that there are seals in the caliper, and my hope is that one of them is bad and needs changed. Thanks for any advice anyone has.