[s-cars] brakes assist failure

[Konstantine Bogach]

Peter,  does pedal sag when booster goes bad?  Mine did.  I don't know 
how booster work.  Doesn't it have seal like MC?   The symptoms look 
like leaky seals:  a little braking until pedal drops to floor,  then it 
returns and I can brake a little more.  I got home by pumping pedal 
repeatedly at the its top position.

Thank you.
Konstantine

  but if I press it to the floor I have little of brakes.  Very little.
Does it
On 3/2/2011 2:34 PM, Peter Golledge wrote:
> If the booster is bad the brakes will require a LOT of effort but will 
> work, if the MC is bad they typically "leak down"
> as fluid goes by the seals.  You can also pull the MC off the booster 
> and look for leaks.
>
> Had an MC go bu never had a booster fail on a Type 44, did have a 
> booster failure on the 95.5 S6, what a freaking pain
> to replace (and $$$ too!).
>
> Cheers
>
>
> On 3/2/2011 11:03 AM, Konstantine Bogach wrote:
>> Hi all,   how to figure out which part went bad - MC or booster?
>> Patient is 200 tqa '89.
>>
>> Thank you.
>> Konstantine
>> S4 '93
>> 200tqa '89
>>
>>
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>
>