Re: Brakes

["Pablo A. Carselle" <pcarselle@worldnet.att.net>]

Steve Frattini wrote:
> 
> Hey guys,
> 
> Need some ideas about what might be wrong with my brakes on my 84 5ks.  90%
> of the time I get quick brake action when I press on the brake pedal, but
> the other 10% of the time (which I'm worried about), I have to press the
> pedal farther down to the floor to get the brakes to engage.  Any ideas
> what might be causing this, or is this a sign of something big wrong?  Any
> collective ideas would be great.  I'm afraid to drive until I find out what
> is wrong/get it fixed.
> 
> Thanks everyone,
> 
> Steve

Steve:
Sounds like air in the system, or fading due to sustained severe braking
(racing ?) 
Suggest you do a couple of things in increasing financial impact order:

1.-Using  DOT4 brake fluid, replace brake fluid and BLEED the whole
system in the right order.
2.- Test your brake pressure accumulator (bomb) I assume you have not
had any brake light comming on in your "check system".
3.- With engine running maintain brake pedal pressure for about 1 minute
(no pumping), if pedal slowly gives, and you do not see any wheel leaks,
your master cylinder could be on it's way out
HTH
Pablo