Subject: Re: 87 5000 hydraulic resevoir foam & overflow

[Mike Arman <armanmik@n-jcenter.com>]

>From: DesignBilt@aol.com
>Subject: Re: 87 5000 hydraulic resevoir foam & overflow
>
>Can anyone tell me what causes foam and overflow from the hydraulic
resevoir? 
>

Volcano syndrome. Rebuild the power steering pump. Instant cure. Kit costs
about $15-20, takes about two hours from "open hood" to "wash hands" the
first time you do it. I'm doing them in about 45 minutes lately.



>From what I have read in the archives this could be caused by many things,
I'm
>new to audi so I must ask.   
>
>This is what happpens: the brake light warning light comes when brakes are
>pumped at parked or on road.  Light turns off after about a minute.  Brakes
>start to feel slightly softer after a few pumps but not by much.

These are "bad bomb" symptoms - if they persist AFTER the pump is fixed,
you'll need a new bomb. It is very possible that the foamed pentosin is not
pressurising the bomb adequately - fix the pump first, then check this again.



  Tank only
>over flows at road speed or at high rev at park with turning wheels lock to
>lock and heavy brake pumping.  When the tank overflows it overflows alot,
I'm
>talking about a real gush out of the cap, most of the flow seems to be coming
>from the at the bottom of the resevoir (return line from the bomb).  Is the
>pressure accumulator bad <<< no, not the cause of this problem>>> or is
this caused by something else?
>

Best Regards,

Mike Arman


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