|
Message
A couple of questions... Your pumps, filters, and regulator is in the
cockpit, not in the tank as in 99.9% of the automobiles today?
Correct. No good way to put the pumps in an RV wing
tank.
How far are your pumps
from the tank fitting, and what size line feeds the pumps.
The distance
from the pickup, to the fuel pump inlet is less than 2 feet, and would be
gravity fed until about the last 5 gallons or so of the
tank.
Do you run mogas?
Yes. 87
octane.
If you do run mogas, do
you know the vapor pressure of the fuel you're running? Do you test
it?
Nope, and
nope.
I have read that mogas
has a lower vapor pressure, which means it can vapor lock easier than
100LL.
That's what
I've always heard as well. I've also heard that they modify the vapor
pressure for temp, so the worst case would be a hot day, in the
winter. I've always wondered if they even bother changing the mixture here
in FL though.
Have you tested your installation to see if it will re-prime if you
inadvertently run a tank dry?
I haven't
done that particular test, but the first time I ran the pumps after filling the
tanks, the fuel pressure was almost instantaneous. I'll make a mental note
to try this again when I get the tank low enough to easily drain the remaining
fuel. Since I stole Tracy's fuel system, I only feed from one
tank. If I run that dry, I would first have to transfer fuel (fairly
slowly) from the other tank, then worry about priming the pumps. In other
words, I don't plan to run the tank dry when there's any fuel in the other
tank. I realize this is easier said than done, but that's the
plan.
Cheers,
Rusty (hoping
I don't get hit by lightning when I have a fuel
leak)
|