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<... the balance of the fuel just comes from
the main tank. As fuel is used from the sump tank, more fuel is
gravity fed into the sump tank ...>
I seem to recall you have a small sump. Now if maybe 75% of the fuel
going to the rail is heated there to some extent and returned to the
sump it will not have a chance to cool much before it's off to that hot
rail again.
Now, what's chances of the fuel returned from the rail to the sump, if
not boiling outright, at least introducing vapor to the sump. Could
that vapor build up sufficient pressure (like maybe 1/8 psi) to prevent
or inhibit gravity feed from the main tank? Such a scenario would
gradually build up vapor in the sump to where you haven't enough liquid
fuel to keep the engine running.
Stranger things have happened? ... Jim S.
Paul wrote:
Re: [FlyRotary] Re: More wild ideas was Re: [FlyRotary] Re: To
Paul SOme diagnosis thoughts
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Original Message -----
Sent:
Friday, February 11, 2005 4:55 PM
Subject:
[FlyRotary] Re: More wild ideas was Re: [FlyRotary] Re: ToPaul SOme
diagnosis thoughts
One final
thought.....my aluminum sump tank in not vented. Seems we discussed
this at length when I was building this thing, and since the overflow
is pumped into the sump tank, the fuel might just be pumped right out
of the vent. Take care. Paul Conner
Paul, the returning fuel is less than the fuel
taken out. Without the vent, how do you make up the difference?
Buly
Hi, Buly....the balance of the fuel just comes from the
main tank. As fuel is used from the sump tank, more fuel is gravity
fed into the sump tank, which is located lower than the main tanks.
Paul Conner
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