Auxiliary Fuel Pump for aux tank

[JSanford]

This is my first post after being a member for a few months. I just purchased a Handy Industries http://www.handyindustries.com/shop/product_view.asp?idProduct=15&D=2&S=0 Tool and Fuel 50 Gal truck box. I want to purchase a fuel pump that I can use to transfer fuel from the aux tank to my main tank via an in-cab toggle or rocker switch. I was planning on using a lift pump out of a Gen II truck http://www.partsamerica.com/ProductDetail.aspx?mfrcode=CTR&mfrpartnumber=P74213&parttype=52&ptset=A to get this accomplished. Does this sound like a viable solution? I figured on going with the lift pump because being a lift pump I asume they are self priming but I could be wrong. Lovin' the site guys keep up the good work!

 

[Snoxracer]

I have the same tank, I used a Carter pump that I ordered from summit. I don't remember the part number but it was the highest pressure one that was offered from carter. I will find out the part # and post with pictures of my in stall once I get some pictures taken. I used a relay to power the fuel pump so I could install a small switch in the cab. I also put a float switch in the factory tank so just in case the pump switch was left on it will open the control circuit for the relay and shut the pump off when the tank (factory) is full.

I then installed sending unit and guage for the aux tank so I can tell the level in both tanks. Anyway I hope to get some pics taken and I will get the part numbers for the sending unit and the guage that I used. I have been happy with the way that it works, the pump to my surprise really pumps pretty quick.



Thanks



Snoxracer

 

[KBalzuweit]

If you have a Farm and Fleet store near you, they have the carter pumps instock.

 

[JSanford]

Thanks for the reply snoxracer. I'm really interested in seeing your install pics. Where did you get the float switch for the main tank? What sending unit did you use for the aux tank? This is pretty much what I wanted to do with my setup as well. I don't have a Farm and Fleet near me to my knowledge but I do have a very large regional napa supplier up the street.

 

[JL penner]

Where are you guys tapping into the fuel tank at to fill it?

 

[JSanford]

Tapped into the filler neck about 5 inches beyond the vent tube.

 

[JL penner]

You wouldn't happen to have pictures of this would you?

 

[nick05]

i'd like to to some of those pics also. interested in the aux. tank myself.

 

[viper700]

I don't have the part numbers with me here in yuma but the part number for the carter pump is something like HP8601P. This will pump a bunch of fuel and is made to pump diesel. I used a holly pump first and did not realize it was made for gas. It would not pump at all when temps were below freezing the carter pumps real fine. Keep your eye on your fuel gauge in the main tank as the carter will fill fast. Also use a Pollack fuel tank switch tied in to the pump power as you don't want it to continue siphoning when you shut off the pump. Pollack has several styles and it you have to plug off one port as it is a fuel tank switch for two tank applications. When picking out the pollack switch pick one with 3/8 ports so you don't restrict the flow. The old P/U dual tanks switches are set up for 5/16 ports and could slow down fuel transfer at colder temps, my opinion any way. The fuel tank sending unit and gauge you can find at any marine outlet as I found mine at West marine. I also made an aluminum box under the bed to hold the switch and pump with a racor filter where the filler neck is. Then I removed the filler neck and silver soldered a 3/8 barb fitting to it to pump the fuel into the main. Where you mount your switch also include a bright pilot light to shine when the pump is on. I mounted mine just left of the ashtray and it is out of the way but easily seen. The picture I attached shows my first unit since then I changed to the Carter pump and the pollack switch but just to give you an idea of the box. It's 16" long 10" high and 6" deep and hangs from the bed supports with 5 ea 1/4 20 nutserts or some peole call them rivnuts. The box works real nice to keep everything clean as I travel from Yuma to Anchorage and there is winter weather encountered when I go. My tank is 65 gallons with baffels and made for me by my son who is quite the fabricator. I can get from Yuma to Canada without refueling not hauling a trailer.

 

[MMeier]

I'm using a Holley red pump that I wired into a rocker switch that glows BIG TIME red, so I don't forget its on. Did not hook up sending unit to aux. though, different ohms from the '97 truck the tank came from. Plumbed it into the vent line up top with a grey plastic tee, that does not show any signs of being affected by the fuel. Oh, and don't forget to put a ball/ check valve of some sort in there too, Gravity fed tanks are a real big no-no!! To the tune of $10 g IIRC !!!! :--)

 

[viper700]

One thing I forgot to mention. When silver soldering onto the fuel inlet neck also go over to the fuel tank vent line and add another fitting. So you can vent the transfer tank to the main tank, as you are displacing the air with fuel in the main it sends that air back to the transfer tank making a closed system. Also do not gravity feed out of the bottom of the tank install a pick up tube in the top of the tank, much safer if ever a failure or accident. When you are filling the main normally you have the cap off and air displaces out the filler neck but when you are running and trying to put in 25 gallons real fast where is the air going go with the cap on? So venting back to the transfer tank relieves the pressure. Thats what I did and it seems work good.