Ed,
Your header tank does not know when the wing tanks are empty. It
just feeds gas to the
carburetor and the wing tanks keep it full as long as they have fuel
in them. When the wing
tanks run out of fuel then the header tank starts getting empty
because it isn't getting resupplied.
When the header tank is completely empty the engine quits to signal
the need to add more gas : >).
They found that the silence gets your attention much better than that
wire on a float going down.
If the header tank gets more gas supplied to it from the wing tanks
than the engine is burning,
the excess drains back to the wing tank via an overflow tube.
I'm with you on seldom needing to add fuel to the header tank.
Dan C
On Aug 6, 2009, at 3:27 PM, [email protected] wrote:
O.K. My brain just can't work anymore.
1, My wing tanks hold 18 gallons (9 in each wing)
and they will usually show equal amounts on both sides on level
ground.
2. How does the header tank know when my wing tanks are empty. Your
header tank does not
3. I just can't figure the whole thing out. How does it know ?
4. I haven't filled my header tank in 9 months. (Header holds 6)
REASON: I usually have to make a pit stop every 2-1/2 hours then
I fill the mains.
I was told that when fuel sits too long it can become
stagnate and gummy, kind of like shellac.
Can someone please explain the system to me.
Ed
