In tank swivel fuel pickup

[76zimmer]

do you remember the one Kert did? i'm betting that worked nice.. maybe he'll post a pic of it...

I do remember that "gray water tank" he built, very nice.

You don't need it to be lower.
Just have a pump pushing fuel into it and it can be level or even higher.
DOn't rely on gravity to feed it especially if you have a thirsty engine, it will not keep up.

I'm using the stock tank with a mechanical pump at the engine....I tried to keep it simple, adding another pump, secondary tank, lines, etc. out of the pic right now.
I think I might just go with a clunk setup for now. I may make some tank/system upgrades in the future to take advantage of some of these ideas.

 

[cybrfire]

do you remember the one Kert did? i'm betting that worked nice.. maybe he'll post a pic of it...

Yep, even runs when its laying on its side. That much we know for sure.

 

[Fordum]

The perfect solution to all this would be a diaphragm type tank, like I have on my water well and they use on the space station.
The bladder type would work too, but sooner or later all those bladder types rupture.
I have a Meyers diaphragm tank that is over 30 years old, still going strong.

With a diaphragm tank, the air is on one side of a heavy rubber sheet, under pressure, with the liquid on the other. There is never any air in the liquid side.

You would have to have the minimum pressure you see just before it runs out greater than the minimum needed to run the engine with a pressure reducing regulator.

I doubt that you would ever get DOT or anyone else to sign off an a pressurized fuel tank, although they ran something similar with outboards for years.
They put kill switches on electric fuel pumps for a reason.
If you had a wreck, or just sheered a line, there would be no way to stop the fuel from coming out with a pressurized tank.

It might be OK for offroad use legally, but if I were going to do it, I would weld a heavy protective cage around the outlet, and screw an electric valve directly into the tank protected by that cage.
And have it a valve that closed on power loss.

Then put a impact kill switch somewhere, plus a big red E-Stop type switch in the cab.
Either one of which killed power to that valve.

 

[boz42]

Yep, even runs when its laying on its side. That much we know for sure.

I dont understan how does it keep from sucking air drom the tubes that are not submerged?

 

[cybrfire]

I dont understan how does it keep from sucking air drom the tubes that are not submerged?

It's a check ball or something along those lines inside the pickups. When they aren't submerged they seal off.

 

[76zimmer]

those look like the Walbro pickups. Is that it Kert?
Those have a mesh on the bottom that basically acts like a screen on your window.
When it gets wet it will hold the liquid and form a barrier to prevent sucking air through it.

 

[blazinzuk]

Yep, even runs when its laying on its side. That much we know for sure

Yes we do

Okay just to venture another point here Dave although I was fairly diligent about making sure my tank was full when I went wheeling I never had a problem even with angles like this

although the snowmobile pickups would probably be good with what you have done

 

[76zimmer]

Eric, Horton is like no other animal. It does things that it just shouldn't be able to do.

 

[cybrfire]

those look like the Walbro pickups. Is that it Kert?
Those have a mesh on the bottom that basically acts like a screen on your window.
When it gets wet it will hold the liquid and form a barrier to prevent sucking air through it.

Yep, that's the ones. Walbro.

 

[boz42]

Cool Thanks for the info.