Hydraulic Leak

[Iain Mannix]

Guess it is my turn - search for "volcano" in the archives.

I just went through this with my 5k - basically, the pump is
sucking air, which pressurizes the return line to the reservoir,
which in turn foams/cavitates/makes Pentosin come out the cap.
It seems that resealing the pump or replacing the pump is the
only option; it can get pretty bad, IME(two pumps in a short
period of time) - from slight leakage to a nice sheen of P on
the underside of the hood.

I'd guess that sealing the cap is going to force it to find a
different way out.  Not sure what'll happen.  Resealing the
pump is fairly easy, and the P/N can probably be found in the
archives.


Iain(give me a week, will be able to offer tips on what to do
if you blew off fusing your radiator fan in a 44....)

On Mon, 4 Feb 2002, john clarke wrote:

>
> Losing Pentosin through hole in cap on fluid reservoir (P/N 443 422 391A).
> Hole is there to permit movement for the plastic rod connected to the
> styrofoam float.  I have an old brake master cylinder cap put on for the
> moment while a new one is on order.  The local dealer had no luck entering
> the above part number and is bringing in the one listed for the car.  Any
> BTDT's on this kind of leak?  Is it common?  Maybe a seal is worn or is
> there a restriction bumping up the fluid pressure and this is a weak link?
> Also, the float  rod appears to trigger a switch on top of the cap to warn
> of low fluid level--it's obviously disconnected now but I'm not getting any
> warning lights on.
> TIA
>
> John
> '90 90Q 20v
>
>
> _________________________________________________________________
> Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp.
>