On Mon, Oct 12, 2009 at 8:17 AM, Mike S <mikes@flatsurface.com> wrote:

> At 08:34 PM 10/11/2009, John Meeks wrote...
>
>  I was just wondering why they stopped using them in later vans.
>> Is there a reason why I can't keep running with my filter as adapter?  Do
>> they cause any problems?  It seems to me that filtering the fuel before
>> the
>> pump is a good thing.
>>
>
> I suspect it's because putting the filter after the pump allows them to use
> a better/finer filter.
>
> Upstream, you're limited to <15 psi (atmospheric pressure) differential
> across the filter, before which point the pump will cavitate. Downstream,
> the differential pressure can be whatever the pump can put out, minus the
> regulated pressure (~30 psi).
>
>
Yeah, that makes a lot of sense re: pressure forced filtration.  Meanwhile,
I'll run with both filters ala Frank C.

John Meeks
'91 Multivan
Northern Michigan

Vanagon Rescue Squad
http://www.vanagonauts.com/Vanagon_Rescue_Squad74.htm

Radio Call:KC8ZFN