Hi Steve,
Yes it requires pump pressure from an in tank low pressure pump. The one
in our 1990 ford van has been working for the past 27 years.
Eric
On Thu, May 4, 2017 at 8:04 AM, Steve Southworth
wrote:
> I believe this valve requires a high pressure pump. It is non-electric
> and requires pump pressure to operate. From a search it appears Ford had
> some
> problems with it. I believe they switched to an electrically operated
> valve later. This is IIRC from when I was under my '93 F-250.
>
> For three years I have been using the same kind of system Ken posposes. I
> also have a surge tank but that is not a required part of the system he
> describes. I went to the "return to reserve" system as the reserve tank
> on both of my jGMC's were badly rusted and the main tanks were good. I
> suspect the reserve was never used and crud or water accumulated in the
> reserve. The return to the reserve should correct that problem. It
> works. I
> can run either tank and not loose my reserve fuel. I run the reserve tank
> about 20% of the time to keep the pump excersized.
>
> BTW do not trust the fuel gauges. When my fuel gauges read just below
> half the Onan will starve out. Number of gallons to fill indicates the
> Onan is
> correct and that indicated fuel level just below half is really one
> quarter.. Both gauges match down to the reserve level. Found this out
> twice on
> some really hot days when the Onan, running two roof airs, suddenly
> sputtered and died. Dropped the rear down to get gas to the Onan pickup
> and beat
> feet to the nearest gas station. (Note: I did have Onan fuel vapor lock
> problems getting it started but that is another subject for another thread.)
>
>
> > Hi All,
> >
> > Have you considered using a Ford dual function reservoir?
> >
> >
https://www.amazon.com/F1uz9b263b-Reservoir-Assembly-
> Selector-Valve/dp/B0042HFX68
> >
> > This would work as long as each of your fuel tanks has an internal fuel
> > pump.
> >
> > If one of the tanks fuel pumps is on, that shifts the internal valve so
> > that the fuel return is pointed to the same tank that is pumping the
> fuel.
> >
> >
> > Eric
> >
> >
> >
> > > Hal,
> > >
> > > Here is my idea because of the unique filling design of our tanks.
> Since
> > > fuel constantly travels back and forth between the tanks until you
> get below
> > > the 7 gallon level (per tank), It make no difference where you dump
> the
> > > return fuel until you get below where 14 total gallons remains.
> > >
> > > So let's address only the return when below the fuel level is below 7
> > > gallons per tank. My thought is to simply dump all of the retrun
> fuel in
> > > the
> > > reserve tank. If the reserve contains 7 gallons or more then the
> excess
> > > fuel will travel it's normal route from the reserve to the main
> tank. This
> > > process will continue until the main tank is completely empty and
> assure
> > > that the same 7 gallons is left in the reserve. At the point of an
> empty
> > > or
> > > near empty main tank you can switch tanks and know that you still have
> > > seven gallons left to tun on. Also while in this switched to reserve
> mode,
> > > all
> > > return fuel will still be placed in the reserve tank. So you will
> get to
> > > use the full 7 gallons from there before you have to start walking or
> hitch
> > > hiking for more fuel.
> > >
> > > This method of plumbing requires no additional switching valves and
> only
> > > needs one return hose while assuring that the maximum amount of fuel
> is
> > > available for eventual use.
> > >
> > > Ken B
> > > --
> > > Ken Burton - N9KB
>
>
> --
> Steve Southworth
> 1974 Glacier TZE064V100150 (for workin on)
> 1975 Transmode TZE365V100394 (parts & spares)
> Palmyra WI
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
>
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
This message, and any documents attached hereto, may contain confidential
or proprietary information intended only for the use of the addressee(s)
named above or may contain information that is legally privileged. If you
are not the intended addressee, or the person responsible for delivering it
to the intended addressee, you are hereby notified that reading,
disseminating, distributing or copying this message is strictly prohibited.
If you have received this message by mistake, please immediately notify us
by replying to the message and delete the original message and any copies
immediately thereafter. Thank you for your cooperation.
