Please forgive me for not knowing what's in the original post or following
the thread all the way through ...
but you want to run the return fuel on your vanagon ( diesel , air-cooled or
waterboxer ) to somewhere other than the fuel tank ????

why ?
Stock system is basically flawless.
There are advantages to returning fuel to the fuel tank.

I don't see how it would matter of you are upstream or downstream of the
pre-pump small filter.

And I don't see why anyone would run the return to just before the fuel
pump.
Trying to compensate for a slightly clogged fuel tank sump area ?????

----- Original Message -----
From: "Max Wellhouse" <dimwittedmoose@CFU.NET>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Monday, May 03, 2010 11:39 AM
Subject: Redux on the Gas Return line bypass

> Can someone send me via pmail the subject line or link for the return
> gas line bypass that was discussed a week or so ago.  It sounded like
> an older modification and might've come from Samba, I don't
> remember.  I'd like to do that mod, but would like to do it correctly
> and not cause more problems.  Specifically, I'm wondering if the
> return line needs to tee in upstream of the pre-pump in line filter
> or downstream of it, since not all Vanagons have them
>
> Thanks
>
> DM&FS