[s-cars] Changed Pump X-Plug, No Brake Boost - Any Ideas?

[Charlie Smith]

Earlier, Fred Munro wrote:
> 
> Hi Kirby;
> 
> There is a spring under the cap which extends when you remove the cap. I
> assume the spring loads the piston. I didn't see any orifices. There are no
> pumps in the bomb at all, so I assume the pump is not pumping. I'm going to
> try re-installing the old o-ring and see if that helps.

I'd almost guess that the pump is full of air, and won't bleed out.
Try filling the opening with hydraulic fluid when you have the X plug
out.

If the plug bottoms solidly, and you can tighten it "real tight"
like usual - I'd guess it's not the O ring thickness.
I agree with Kirby, the pump has 2 circuits, steering abd brakes 
are separate.

    - Charlie


  Charlie Smith   charlie at elektro.cmhnet.org  614-471-1418  
  http://www.elektro.com/~charlie      Columbus Ohio   USA
  http://www.elektro.com/~audi     photos & technical info

  95 S6 Quattro  -  24 PSI, RS2 6 speed, and other features  
  97 Dodge Ram   -  40 PSI, 4x4 w/Cummins turbo diesel