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Old 08-17-2012, 09:07 PM
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tc33 tc33 is offline
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Help Bleeding new Brake System

Hey All,

Here's my situation...

I haven't got the motor running yet. Keep that in mind for the end of this message.

New brakes, discs, on all four corners
Frame mounted master cylinder w/booster, remote reservoirs
All new lines, proportioning valve on the rear circuit
Residual valves on front and rear circuits

I've tested all valves to be sure they are installed correctly. I bench bled the master cylinder and tested it for good pressure and no bypass leaks

I've been trying to bleed the system to get a good high pedal but no luck. I'm using DOT 3 synthetic fluid. I know that synthetic usually gives a soft pedal but this soft????

I start bleeding and the farthest point both front and rear.

After bleeding the system over and over again I get a good shot of fluid, no air, from each caliper but I can never get the pedal higher than an inch or two off the floor. After bleeding, the first pedal pump usually hits the floor then I can pump it up to the inch or two height.

Once I get the motor running, will the vacuum booster help raise the pedal higher?

Any suggestions will help in my frustration. Thanx in advance.
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