Re: [DML] Brake saga........

[Qumefox <qumefox@xxxxxxxxx>]

basfe25 wrote:

>Ok, a while ago I posted that I was having front brake problems. A
>reminder: Master cylinder is brand new, front calipers are rebuilt and
>all lines are new. The only difference in the car is the fact that I
>have the SS braided brake lines rather then the old rubber ones.
>
>For the life of me....I can't get my front brakes to work!!! Rear
>brakes work great but the fronts just won't clamp down and grab. At
>first I though it was a defective Master cylinder so Rob at PJ Grady
>exchanged it for me, still no luck. I next thought that maybe I didn't
>rebuild the front calipers properly so I purchased a pair that were
>rebuilt professionally, still won't work. I have gone through 6
>bottles of brake fluid trying to bleed the system......still WON'T
>work. Again, back brakes work great but the front won't work.
>
>I've used compressed air in the system to see if there was blockage
>and there wasn't, air moved through it freely with no restrictions. I
>then connected my compressor to the end of the brake line that
>connects to the master cylinder and shot some air in it, front brakes
>grabbed the rotor tight.
>
>What in the heck could it be???? I have tried to power bleed it,
>gravity bleed it, brake pedal pump bleed it you name it! Maybe I am
>not doing it right? I've rebuilt brake systems before on 8 other cars
>and none ever gave me a problem like this. This is the most basic and
>simple setup I have ever worked on.....can anyone help?
>
>
>
If you say you can pressurize the front brakes with air and the brakes
appear to operate, then your problem has to be the master cylinder
wether it was exchanged or not.. The braking system is very very simple,
as you've stated. So there's very little to go wrong. The only thing I
can think to check for is to make sure that something's not clogging the
reservoir that feeds the front of the master cylinder preventing fluid
from passing like it should.

--

Chris
VIN# 03209
http://badger.brazi.net/delorean



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