aux fuel tank install

[tmarti96]

I am getting ready to install 60 gal Rds combo tank. I want just a simple deal, nothing fancy. someone posted an article about running the supply line from aux tank, thru on/off valve to the main tank vent line. where would be a good place to mount pump and where could I get a simple 12v pump? THANKS IN ADVANCE.

 

[BillGotthelf]

You can get a good fuel pump from any of the web sources. Try Summit- I believe you will have a problem if you try to pump fuel into the main tank by using the vent line as the air trapped in tank has no where to go. You will need to splice into fuel return line that enteres the fill neck about 4" below cap. Make sure you put some kind of visual warning that pump is running(tranfering fuel) or you'll forget and pump fuel out of the filler cap all over the road.

 

[B.G. Smith]

Pull the fill nozzle (three screws and two hase clamps) and braze two connections(I used 1/4" npt pipe couplings) onto the vent line. You will want the fuel to go into the lower conn. and tie the top conn. back into the top of your aux. tank. If you come out of the bottom of your aux. tank, you can get by without a pump. If you come out of the top(which I prefer) then you will need a pump. I am using a Stewart Warner pump that was designed to pump diesel for a fork truck. I pump my fuel through a 10 micron filter going into the main tank to save my Cummins filter. I run from tank to filter then to pump then to shut off valve, reason being that I filter the fuel before it goes to the pump or filter. I used 3/8" automotive fuel line for the plumbing. I am using a timer type manual switch(the kind you use in a bathroom to turn off the sunlamp) so if I forget to turn it off it goes off in a maximum of 30 minutes, with the vent line, if the main tank fills, it just pumps fuel back up the vent to the aux. tank. I got my 12v elect. valve at NAPA. bg

 

[Larry Willard]

I have my tank installed to gravity feed into the filler neck, also put a tee in the filler neck of auxillary tank and tied into the vent line of the main tank. This allows the air to be exchanged from tank to tank as the fuel flows. I used a manual ball valve at the tank and then installed a electric valve from a dual tank Ford, ( since this is a multiple port valve you must plug the side that is open with no power) wired to a switch with power to key on so that when the key is off the fuel flow stops.



Larry