1963 Sport Fury Brakes update

skag101 · Jun 14, 2016

Well after several weeks of working on these brakes, all new parts, three master cylinders, I still have no brakes. They will pump up to about half pedal and hold. Then when I try again in just a few minutes it is all the way to the floor. I have no idea what to do next. Any suggestions?

eric383 · Jun 15, 2016

Normally that is a sign of air in system. Lets get some other opinions.

Ron H · Jun 15, 2016

is this drum or disc brakes (conversion)? Power or manual? Single or dual reservoir? Since not aware of your set up, assume you have no fluid leakage anywhere...and if drum brakes, the pads are adjusted to drums...there is no failure occurring with the brake pad linkage and brake cylinders are installed correctly as is the adjustor linkage. Also the pedal rod is adjusted to the master cylinder correctly. Rubber lines also installed with new parts?

threewood · Jun 15, 2016

I'm guessing single reservoir master cylinder and 4 wheel drums which were all so common.
Brake shoes adjusted with a little rubbing on all four corners?
Bench bled master cylinder?
If there are no external leaks you have air in the system. Did you start with farthest wheel and work back to nearest? On the new cylinders, installed with the bleeder in the highest position?

Ron H · Jun 15, 2016

yeah threewood...thinking that a cylinder or more could have been put in wrong or adjuster wrong. When I rebuilt my ragtop motor I spent a lot of time wondering why it would do everything but move the top. Finally found out I put the reservoir tank back on the motor at 12 instead of 6 o'clock (valve location)...50/50 chance of doing that and my luck I got the wrong 50!

skag101 · Jun 15, 2016

Well, the M/C does have two reservoirs. Discs on the front. It was bench bled and all bleeders are in top position.I have probably went through a gallon of fluid bleeding these. I've installed brakes for years so I've tried to do everything by the book. Never have I had a problem like this. I'm totally baffled. Thanks for all the suggestions.

threewood · Jun 16, 2016

Did you run all new brake line or use the existing lines? How is the fluid coming out of the rear cylinders? Fast? Drip by drip? Clean fluid? Old fluid? Does the fluid start flowing as soon as you crack the bleeder? Do you have someone that can press the pedal while you watch the
Bleeders?

Maybe brake hardware installed incorrectly?

miller · Jun 16, 2016

skag101 said:
Well, the M/C does have two reservoirs.

Power or manual? Makes a difference, and there's a different MC for each. Just wondering if you have the wrong MC...or, wrong distributor block for the system.

furyus · Jun 16, 2016

On my Dart, I installed new wheel cylinders all around. Had the same issue. Turns out it was one of the new wheel cylinders. I carefully pulled the wheel cylinder rubber cover back,and I could see where fluid leaked past the piston. Put the old one back on. Works fine.

1963 Sport Fury Brakes update

skag101

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eric383

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Ron H

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threewood

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Ron H

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skag101

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threewood

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miller

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furyus

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