I was surprised at how my last new MC took quite a lot of fluid during pre
- install bench bleeding.  It was a bit hard, even out where I  could get
right at all the ports and the actuating rod, to make it operate, at
first.... Once it was pumping fluid, dependably...then I installed it and
bled it a few times.

I'd start over, Bench bleed it first.
On Feb 4, 2015 7:13 PM, "Stuart MacMillan" <stuartmacm@gmail.com> wrote:

> Well, there is air in the system someplace, probably in the master
> itself.  I've found the Vanagon system difficult to bleed without pressure
> bleeding, but you could try to purge the master by loosening the line
> connections and pumping the pedal gently until fluid leaks out.  Use rags
> to catch the fluid.
>
> I also recommend using the best quality German parts, like the cylinder
> from Van Café, complete with brake light switches (they do fail). Cheap
> ones aren't worth installing.
> http://www.van-cafe.com/home/van/page_731_199/brake-master-cylinder-german.html
>
> Stuart
>
> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf
> Of Mike Riley
> Sent: Wednesday, February 04, 2015 12:47 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: master cylinder problem thoughts?
>
> I am on my second new master cylinder First was a beck-arnley and it
> squirted back into the reservoir on the down stroke, out it came now with
> my second different brand I have to pump the pedal once to get a pedal at
> the right height. No air in the system and the pedal is firm both at the
> low position and at the pummped position. Bled 3 separate times using 2
> quarts fluid total and there is no air and no loss of fluid. this is my
> ninth van so I have done many brake jobs. New rear cylinders with the
> springs in them and brakes adjusted tight. I guess that I have received a
> bad master yet again?
> thanks
>    mike
>