True.
Or, the return line plumbed through the aux tank would do the trick
too, provided the aux is in the syncro location (input/output above
the level of the 2wd tank).
~unless you're talking aux for syncro, which I think would require a
pump of some sort (syncro people will have to correct me on this one,
since I haven't actually seen a syncro fuel tank :D)

Sudhir

On Sat, Jan 2, 2010 at 09:52, Mike <mbucchino@charter.net> wrote:
> How about totally automated?  A couple of open lines between the 2 tanks (on
> the upper level and lower level) so it's self-leveling......
>
> Mike B.
>
> ----- Original Message -----
> From: Sudhir Desai
> To: vanagon@GERRY.VANAGON.COM
> Sent: Saturday, January 02, 2010 9:15 AM
> Subject: Re: HasenWerk 2010 Grand Opening
> To make it a bit more automated, but just as simple, the transfer pump
> could kick in when the resistance on the fuel guage (assuming you have
> a working guage), goes up/down to the quarter-tank resistance, and
> back off when it goes to the three-quarter-tank resistance.
>
> Sudhir
>
> On Fri, Jan 1, 2010 at 22:13, Al Knoll <anasasi@gmail.com> wrote:
>> The Feynman solution to the pickup and such on the aux fuel tank is to
>> simply use the tank as a transfer tank. A simple pump is used to transfer
>> the contents to the main tank when it is empty enough. Can be done
>> underway. No dual fuel pumps, no high pressure lines, just a transfer pump
>> and switch and of course a working fuel guage on the main tank.
>>
>> "Things should be a simple as practicable, but no simpler"
>>
>> Al (AH-1 gunner)
>>
>> On Thu, Dec 31, 2009 at 9:31 PM, TJ Hemrick <x53gunner@gmail.com> wrote:
>>
>>> David,
>>>
>>> You just couldn't do it. You just couldn't stay away. A few years ago
>>> when we exchanged emails and over the past several years of reading
>>> between
>>> the lines of posts here on the list, I sensed some dissatisfaction and
>>> occasional disgust with some unruly customers. I completely understood
>>> your
>>> sentiments. I hope things go much better now. Although, I must say,
>>> they're still out their so don't let them ruffle your feathers.
>>> Damn glad you're back.
>>> Now, about the plans for those aux fuel tanks and how to rig the
>>> pickups.... ;)
>>>
>>> Great way to start the new year,
>>>
>>> Ciao'
>>>
>>> TJ Hemrick
>>> 87 Syncro
>>> Melbourne Florida
>>>
>>> Date: Thu, 31 Dec 2009 10:07:03 -0800
>>> From: David Marshall <mailinglist@FASTFORWARD.CA>
>>> Subject: HasenWerk 2010 Grand Opening
>>>
>>> <style type=3D"text/css">
>>> ->
>>> </style>
>>> After a two year sabbatical I would like to
>>> announce that HasenWerk is now officially open for business as of January
>>> 1st 2010. Unlike my former business, Fast Forward Automotive,
>>> I have reduced my product scope and will focus mainly on engine
>>> conversio=
>>> n
>>> wiring harnesses and accessories for Volkswagen Vanagon a Suzuki Samurai
>>> vehicles. One of the new areas that I am getting into is custom chip
>>> tuning for Vanagons with TDI and 1.8T engines so that the power is
>>> &ldquo;softer&rdquo; on the gear box.
>>> Please feel free to visit http://www.hasenwerk.ca and take a
>>> look at what I have to offer and as well see photos from my various BMW
>>> G=
>>> S
>>> and Volkswagen Syncro adventures.
>>> May everyone have a happy and prosperous
>>> 2010!
>>>
>>> David Marshall
>>> VW Adventure Driver and BMW Adventure Rider
>>> =20
>>> HasenWerk=20
>>> http://www.hasenwerk.ca
>>>
>>