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76' no brake pedal

by Andy
(Warminster)

booster, calibers, master cyclinder replaced. same problem remains.no brake pedal. Gravity Bleed, Pressure Bleed, Vacuum Bleed, Bench Bleed MC. Nothing changes. WHAT IS IT?

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Feb 01, 2016
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No brake pedal
by: AnonymouAndys

I ended up taking calipers off the car. Collapsing the calipers(splitting them in half) filling the calipers at the split lines. Flushing the lines, leaving them full, re installing. Calipers and bleeding brakes. They have been perfect for the last year. Thanks for the tips

Andy

Jul 13, 2013
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bleeding fix
by: Anonymous

I have found that the lines from the master to the p valve will allow air to remain in them during standard bleeding,this causes the master to lose its prime, the fix is to fill those lines with fluid,bleed master,reconnect master lines and bleed via 2 man system or power bleed

1L VACUM BRK FLUID BLEEDER BM

Sep 02, 2012
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PROPORTIONING VALVE
by: Anonymous

You could have a bad proportioning valve, its the brass "union" all brake lines from the master cylinder go to before they each head to their caliper. It contains a valve that moves when either front or rear systems loose pressure if there is a failure (leak) to keep the system with pressure working until you can fix it.

Jun 30, 2012
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76' no brake pedal
by: Terry Orgeron

Did you also change out the four little rubber hoses between the hard tubing and the calipers? There will swell up over the years and trap air and prevent you from bleeding the brakes properly.

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