Thanks for the quick replies; I see that both regulators are virtually
the same.
After visiting a few wrecking yards I noticed that Waser Boxers had a
full loop fuel system.
I used an 85 regulator with the double inlet on my 83 Air Cooled to
eliminate a lean burn on #3 cylinder.
I installed a similar full loop system on my 83 Air Cooled Westy.
It seems to have worked well, I'm getting matching color on the spark
plugs now.
Before this retrofit I was getting an almost white (metallic) burn on #3
spark plug.
This has to be some kind of fix because I made no other changes in 7000
miles.

Stan Wilder

On Thu, 06 Jun 2002 09:47:58 -0400 David Beierl <dbeierl@attglobal.net>
writes:
> At 08:57 AM 6/5/2002, Stan Wilder wrote:
> >1980 - 1983 Air Cooled Vanagon pressure regulators, what are the
> test
> >pressures?.
> >1984 - 1991 Waser Boxers Vanagon pressure regulators, what are the
> test
> >pressures?
>
> AFC/Digijet/Digifant are all 2.5 bar (36 psi) higher than Manifold
> Absolute
> Pressure.  That translates to 36 psi stopped or with vac hose
> disconnected,
> about 29 psi idling with hose connected.  If you're measuring
> manifold
> vacuum, every inch of vacuum should drop your fuel pressure by just
> under
> half a pound (0.485 psi) from the original 36.
>
> d
>
>
> --
> David Beierl - Providence, RI
>   http://pws.prserv.net/synergy/Vanagon/
> '84 Westy "Dutiful Passage"
> '85 GL "Poor Relation"
>
>

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