Running two gas tanks (question)

I have a 1955 F100. I was planning on using the stock gas tank next to the driver side running board. I came across a nice 25 gal tank for FREE! And am wondering if any of you have experience running two tanks.

I know there are probably a lot of different ways to run two tanks but I wanted to ask some peeps with experience. I have room to run it behind the rear axle below the truck bed. But I like the idea of having the stock 15-17 gal tank AND the 25 gal tank. Any suggestions?

The only hitch is that the top of the rear axle is about two inches ABOVE the bottom of the rear tank. So I won't necessarily be able to gravity feed the stock tank below the cab.

 

My O/T '96 F-150 that I bought new has 2 tanks that hold a total of about 37 gallons..

 

Run a dual tank swichover valve and selector switch from a late 70's to mid 80's GM truck. It will switch the tanks and your sending units for your gauge.

 

Do I have to run two seperate fuel pumps?

 

Should I salvage a dual tank switchover, or can I buy a new one from a corner auto parts store?

 

stock engine driven fuel pump would be ok.

I would buy new.

 

You talking electric? If so mount a pump just p***ed the selector valve on the out line to the engine.

 

I'd like to keep the stock mechanical fuel pump. Where would I get the right selector valve to pull from the two tanks?

And I'm also not stuck on the idea of keeping the mechanical pump. If it's better to go electric then I will.

Thanks for you help thus far guys.

 

I did a google search and found a couple of Fuel Tank Selector Valves. Thanks again for your guys help. I wouldn't have even known where to start looking for parts.

 

Ran a two tank system on two MH's. never had a problem, used the stock fuel pump. The one on the motor, not the in tank type. never used a gage just started with the ungaged one and then switched to the one with a gage.

 

I'm doing same thing to my 27 rpu - two 10gal tanks....one selector valve (electric) and I'm installing an electric pump at same time (it will go between the engine and the selector valve - close to the tanks). Fairly easy setup, I ran similar setup in my 74 CJ5/LT1 - stock tank at rear and a very early underseat tank. Manual selector value between the seats...two gauges (can't have TOO many guages in a Jeep or a plane). Sure made it easier to get way far away.

dj

 

I used a manual (SBC) pump, selector valve, 1 gauge. The item you'll need to make it work is a DPDT switch. It stands for Double pole Double throw. It switches two items with one switch. Check out mid '80's to late 90's Ford F series trucks. Same set up.

 

My cousin owned a Deuce roadster for awhile that was built in the early 50's and had two 10 gallon tanks in back of the seat with separate fuel gauges and pumps.There was a manual switchover valve between the seats and a toggle switch that activated both the gauge and the pump for the respective tanks.Actually if I recall the switch actuated a relay that took the load off the switch.
I can remember several times traveling in the car and having it start to sputter(empty tank)and my cousin would reach down and switch tanks and have the car running again before we rolled to a stop.Didn't happen too often;only when we were having a great time cruising!

 

Remember in the 70's when you could not buy gas after about 6pm because of fuel shortages. I mounted a box on the front of my tent trailer with a behind the seat pickup tank. I hooked it up to the car with a quick disconnect and a spare electric fuel pump and had an extra 17 gallons to go with my 15 gallon 40 Ford tank. That would take my flathead powered coupe across state for rod runs back then. There were only a hand full of runs in Idaho and most were 400 to 500 miles away.

 

Ford had the same thing. 'Cause I know that you're a Ford in a Ford kinda guy Grover!

 

I was gunna do a duel tank but i was just gunna have a cross over line, so it would draw from both tanks at the same time

 

Those mechanical tank selector valves usually have (or end up with) a blank spot that you can turn the switch to that shuts the fuel off to the engine. Not a perfect anti theft device but one that will foil a lot of characters that might try jumping in the truck and taking off down the street. Embarr***ing when you forget to flip them on your own truck too.

A three way toggle switch on an electric tank valve would do the same thing.

 

I thought you had died! Where you been!?

 

There's been a lot of great input here! Thanks guys!

 

You guys just gave me an idea! I have an Edsel wagon that has a one-off kind of tank, no one makes a replacement. Maybe I can mount 2, 10 gal tanks in the space I have.