[urq] No brakes!

[Ado Sigal]

Bill Bennett wrote:

> MikeDes156 at aol.com wrote:
>
>> Nice almost 50 degrees today here in New England so I thought I'd 
>> take the  urq for a spin. Hmmm, brake pedal went to the floor. Brakes 
>> were fine when I  parked her a few weeks ago. Pumping the brake pedal 
>> helps a little, but all that  does is push the ATF Dextron fluid out 
>> of the top of the steering/brake  boost fluid resevoir, and when I'm 
>> pumping, I can see the master  cylinder/brake fluid bubbling in the 
>> resevoir. This all happened as the car was  idling. Any thoughts?
>> _______________________________________________
>>
> well, duh, bad master cylinder and an overfilled assist reservoir
>
Had same thing happen. Changed MC and same happened again. Same bubbling 
in the reservoir, while been very difficult to bleed the brakes. It 
turned out to be the proportioning valve. If you bow in the reservoir 
and open p/valve bleeder some air would come out. That's the sign, if it 
was MC or leaking line, you would have at least two wheels braking, 
while if yo get the air in the system, there is no brakes at all. 
Replaced the p/valve with much simpler one that mounts vertically from 
90Q, adopted lines and the bracket, and the brakes are what they used to be.
 
HTH and regards,

Ado