Not what your thinking!

I'm build a rectangular fluid container. :D I'm putting the Isuzu pump/float/sender combo into the tank to ease or avert any wiring problems etc. The Isuzu pump has a hard flat charcoal filter on the pick up at the bottom of the pump/sender/float assembly. This is great for keeping the fuel filtered etc. However since it is hard plastic and sitting about the front/middle of the tank it could suck air when going up or down steep (Moab style) obsatacles. I'm thinking of cutting off the charcoal filter and attaching a hose with some weight on the end so the pick up will flow with gravity to make sure that it's sucking gas.

Any thoughts? Any recommendations on what works best for hose/weight combo. Anyone do this and found any bugs in the idea?

TIA

Hey BD, if you are making your own tank I would that if made baffles about 1/3 to 1/2 way up the inside of the tank and extend the pick-up line into "box" you made inside of the tank. I would keep some kind of filtration on to protect the fuel system. At the bottom of the baffle box you want to put some holes mabye 3/16 to 1/4". What this will do is if you get on an angle when the tank level is lower the baffle box will retain its fluid level longer because the fuel would have to drain through the smaller holes in the bottom to leave it. The small holes also keeeps the tank level equalized, just allows the fluid to stay at the pick-up longer. Just guessing on hole sizes. You will need to experiment, if drains too fast you starve your engine and if it does not recover fast enough you get the same result. Good simple starting point is to make an insert you can put in the tank. start with small holes, fill about 1/3 with water and tip it over on a steep angle and see how it holds the fluid. Tip it back and see how fast it fills back up.
Sorry so long winded, just trying to cover all the bases. This concept is used in a lot of tank applications, may work here for you. Take easy and good luck :D :beer:

BD,
in RadioControlled aircraft they use a device called a clunk. it is a barbed hose fitting on a hunk of brass. it works really well. just go to your local hobby shop. they should beable to help you out.

last time I did this I used a bolt as a weight but that was a beater buggy, make sure whatever pickup you use has something to keep the line from sucking onto the side of the tank. don't use normal black fuel line it can't take constant immersion, goes all gummy, use the clear stuff that is rated for gasoline use, go expensive as it will harden up if its the cheap crap.
other than that it worked great for me, could idle sitting on the tailgate forever as long as oil pressure held up.