I've always assumed it's a combination of the proportioning valve and the
much longer lines introducing more pressure loss. On a Jetta, you can adjust
the prop. valve by hand while bleeding to test this theory, but I don't
thing any Vanagons have load adjustable valves, do they?

On Sat, Mar 27, 2010 at 12:38 PM, neil n <musomuso@gmail.com> wrote:

> Hi all.
>
> Now that I have a nice DIY pressure bleeder:
>
> http://tinyurl.com/yhbumrf  (Yes it's pink. It was also 10% off  ;)
>
> and can see what's coming out the hose, I'd like to make sure of something.
>
> With 10-12 PSI in pressure bleeder, rears bleed ~ 1/2 as fast as
> fronts But comparing a front and rear bleeder screw, small hole
> appears to be the same ID.
>
> Do rears bleed slower because there is one long line split to each
> cylinder?
>
> (can't recall how lines route up front. Can't see a pic in Bentley or
> online)
>
> Neil.
>
>
>
> --
> Neil Nicholson '81 VanaJetta 2.0 "Jaco"
>
> http://tubaneil.googlepages.com/
>
>
> http://groups.google.com/group/vanagons-with-vw-inline-4-cylinder-gas-engines
>