has anyone swapped....[dead bomb]

[David Kase]

With the car off the brake pedal feel should change as you continue to 
pump it.

You bleed pressure off the bomb each time you hit the pedal until the 
bomb is "dead".

So, you could still have a tired/dead bomb or a bad check valve (also in 
the bomb).  Of course this still doesn't help with the squishiness...

Dave

tmb wrote:

>>It's far more likely that your (perhaps
>>original?) hydraulic pressure
>>accumulator (aka "the bomb" which it resembles)
>>has lost the ability to
>>store an adequate reserve supply of pressurized
>>hydaulic fluid to fully
>>supply the brake assist, this is known to
>>happen over time. Do the "bomb
>>test" (repeatedly depress the brake pedal with
>>engine off until it changes
>>feeling, good bomb should give >10 assisted
>>strokes) and if it fails,
>>replace/recharge it if you want full brake
>>assist.
>>    
>>
>
>well, after 12 pumps that were exactly the same
>pressure, i figure that the bomb has not yet
>detonated.  so, i'm assuming that it's not the
>culprit.
>
>so i quickly jumped in it, started it up, and
>drove it 20 feet forward and reverse.  the brakes
>work fine, but there's that squishiness that i
>notice everyday.  the pedal feel is actually
>harder with the vehicle off.
>
>to be honest, i've not got a lot of experience
>with older audi brake systems.  this may be a
>completely normal feel.  however, i know that
>that little red light on the dash coming on is
>not normal.  i'm assuming that the two are
>related.  maybe that assumption thing is getting
>in the way again...
>
>jason
>tmb
>
>
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-- 
David B. Kase
Engineering Manager
PDQ Industries, Inc.
2754 Creek Hill Road
PO Box 507
Leola, PA 17540

717-656-4281 (p)
717-656-8749 (f)