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| Re: [GMCnet] Fuel tank Sending Unit [message #76811 is a reply to message #76805] |
Tue, 16 March 2010 08:26   |
Mr ERFisher
Messages: 7117
Registered: August 2005
Karma:
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Senior Member |
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There are several factors that change the dynamics of this tank system.
1 It depends upon how long your GMC is nose down or nose up..... flow rates
are a consideration. I know if you park nose down, your Onan will quit much
earlier ;>)
2 TBI systems return through the fill hose, and seem to return most of the
fuel to the AUX tank. May be a time / flow rate situation
3 and as you say, the vent lines will fill with fuel just to the same level
as the fuel in the tanks ( except in my coaches, where the vent / sendors
are leaking and if you park on a hill the fuel/ air, will leak out/in
through those.
but
in general, most of the fuel will end up in the AUX tank.
( Good move on not pushing the CAD. Life is tooooo short to create your own
pressure ;>)
gene
On Tue, Mar 16, 2010 at 6:03 AM, Ken Henderson <ken0henderson@gmail.com>wrote:
> Gene,
>
> I've got a question about the last drawing, showing the Aux tank almost
> completely filled when going downhill: With the vent line almost centered
> fore and aft on top of the tank, won't the absence of a vent behind that
> point keep the gas from filling much above that level?
>
> Ken H.
>
> On Mon, Mar 15, 2010 at 8:38 PM, Mr.erf ERFisher <mr.erfisher@gmail.com
> >wrote:
>
> > actually all of the gas ends up in the AUX tank. look here to see why
> >
> > http://gmcmotorhome.info/tank.html
> >
> > gene
> >
> >
> >
> > On Mon, Mar 15, 2010 at 12:49 PM, George Groth <grggroth@sbcglobal.net
> > >wrote:
> >
> > >
> > >
> > > Some guys just replace the Main (rear) tank sender. It really is all
> one
> > > needs. They are quite expensive.
> > > --
> > > geo groth '73 260 Sequoia
> > > Carson City Nevada
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> > >
> >
> >
> >
> > --
> > Gene Fisher -- 74-23,77PB/ore/ca
> > “Give a man a fish; you have fed him for today --- give him a URL and
> > -------
> > http://gmcmotorhome.info/
> > Alternator Protection Cable
> > http://gmcmotorhome.info/APC.html
> > _______________________________________________
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--
Gene Fisher -- 74-23,77PB/ore/ca
“Give a man a fish; you have fed him for today --- give him a URL and
-------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
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