aux-tank hook up
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aux-tank hook up
hey guys i picked up an aux-fuel tank to put in the bed of my truck. its not really big, i think about 15-18 gallons enough to fill the gap between my tool box and the bed floor. anyway i was needing a little help on how to tap it to my front fuel tank. if u have pics please post, that will help very much.
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stainlessstroker95, it is actually a homemade aluminum tank i picked up at a junkyard. the guy was my dads friend and let me have it for 20 bucks. i couldnt pass that deal up, its not professional built but it works and still looks decent. ill post some pics of the tank in a bit.
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From: Orrville, Ohio
The problem with just tapping in that way is that the fuel will flow form the aux tank continue to fill the stock tank until it overflows since the aux tank in the bed is higher than the top of the filler neck. Your best bet is to tap into the fuel filler neck and use a small pump with a check valve in it. That way you can switch on the "transfer" pump and refill the tank, and then turn it off after the tank is full, stopping the flow of fuel. The only way to get around using a pup or a valve of some sort is going to be to mount the aux tank low enough that it is no higher than the top of the filler neck.
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Nate, that is actually the way i had thought about doing it. i wanting to a pump to control the overflow. can i use any external pump from the parts store and be ok? also can i just tap the filler neck hose or do i need to remove the hose inside the filler neck?
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Post Fiend
Joined: Dec 2010
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From: Orrville, Ohio
I don't see anything wrong with tapping the filler neck hose. It has to be rated for the exposure to the diesel since it serves at the breather while you're filling up. Of course you could always tap into the filler neck up high where it is still steel line too. That might be a simpler way to do it. As far as a pump goes, as long as it is rated to move diesel, I would think you could use just about anything. It doesn't have to be a high flowing pump either.
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From: Huntsville, Tx
I've been looking into this as well, taping into the filler neck is just fine. There is. Company that sells a splice kit with a special valve to prevent over filling but is only for gravity feed, sorry I forget the name of the company. I planned on tapping into the metal part and use a pump and turn it on and off manually when the gauge reads full. Napa sells a pump that puts out 8psi and 100 gph, hp6001, I believe is the part number. It's a little more expensive but made for diesel fuel.
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