[Mgs] Brake failure - What caused it?

riverside riverside at southslope.net
Tue Aug 24 20:10:07 MDT 2010


Do you brake with your left foot in your nomally driven automatic car?
Ron Sanborn
----- Original Message ----- 
From: "Charley & Peggy Robinson" <ccrobins at ktc.com>
Cc: <Mgs at autox.team.net>
Sent: Tuesday, August 24, 2010 8:16 AM
Subject: [Mgs] Brake failure - What caused it?


>  Here's a little trouble-shooting exercise for ya, gang.  I got my '69 B 
> out of the garage after it had been sitting undriven for several 
> months.Backed her out, hit the brakes and the pedal went to the metal! 
> Wound up on the grass next to my driveway, fortunately an uphill slope. 
> So I look in the master cylinder and the front chamber is almost dry - my 
> bad, should have kept it topped up.  So I fill it with Dot 4, do a little 
> bleeding and get a nice firm pedal with no leaking down.  Drove the car a 
> few times in the cool of the morning with no problem.
>
> Couple days later I'm pulling slowly into my garage, got to stop and the 
> brake pedal goes to the metal!  I almost yanked the handbrake lever off 
> the floor!  So after I changed shorts, I looked in the master and it was 
> still full.  Hopped in the car and tried the brakes again and they worked 
> fine with a firm pedal.  Brake lights work too and there are no 
> discernible leaks.
>
> I think I know what's wrong.  What's your take?
>
> CR
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