Installing a f150 rear tank in a waggy

[Rainman]

I picked up a f150 rear tank to use as an aux tank in my waggy. It's out of an 83.



I need to install a nipple for a return line (upgrading to fuel injection) and install a vent line for the filler tube. What would be the easiest way to do these.

I also would like to know what the resistance range for the sender is and wheather or not it's more or less compatible with the guage in the jeep. I've spent lots of time searching for this and could find a solid answer.

Any help would be appreciated.

[PlumCrazy]

Can't help you with the ohm readings...I went with a custom dash and used SW guages.

As for a nipple/filler question, a good muffler shop can build one for you.

83 was probably the last of the carbed engines, I know the tank I bought was for a 93 F150 and it had the return line on the sender/pick-up/pump. You may be able to find one of those or purchase new (beware of the sticker shock...it's expensive) that would drop right into the same hole.

Some pics in my signature

Wayne S

[Rainman]

I took a wire wheel to the tank to get all the crap off the outside. Looks nice and shiney now.

Apparently the vent filler hose goes inside the filler hose. Not exactly sure how I'm going to adapt that to my plan to use a second G-wag filler section. Might need to fabricate the fill pipe so the vent is inside the hose. The return nipple should be easy enough to weld to the tank (or the sending unit)


According to some ford truck forum (I forgot which) the sender opperates on a 160 full, 15 empty. According to my Haynes for the G-wag, the stock sender is 110 full and 1 empty. Didn't these invert at some point (with the dash change in 86?) If these numbers are true, I suppose I can use the factory guage and it will give me approximate fuel level for the aux tank. Right?

[yankeedog]

the sending unit in the ford will work but not be very accurate.you will probably read full for a longer period of time. and empty will be about 1/8 tank as indicated on the jeep gas guage.

[Tigger4X]

How many gallons does this F150 tank hold ??

Have you been taking pics of your progress ??


.

[Rainman]

19 gallons.

I plan to take some pics as I install it. I need to figure out how the filler will work first.

[Rainman]

"Modified" the tank to fit. I had to pound the lips on the side down to make it fit between the frame rails. Pounded a little to hard on the passenger side . Wouldn't fit without taking the hitch off but it should be able to go back on after the tank is in. Need to get the new filler/vent pipes welded on and figure out the best way to secure it, among other things. Also, I need to do something about the exhaust.

Pics: http://s145.photobucket.com/albums/r..._Wag/aux_tank/

[grand_wag_85]

Nice! How'd you route the fuel lines?, Did you reuse the spare tire brace?

[AlsChopShop]

are these f150 tanks baffled for fuel injection?

i have only measured but the tank i have from an 87 suburban should fit tight between the framerails (turned 90*), and it just might fit into the channel of the crossmember but worst case the crossmember can be moved forward a bit. the tank has got to be close to 40 gallons though. i just have to find someplace to empty it (its 3/4 full!) and i can test fit it a little easier. i'm not sure how far it will hang down though, we'll cross that bridge when i get to it.

Al

[JeepinPete]

Hey Rainman, the numbers I found on that tank are 34 3/4" X 27" X 8" deep. Are those in the ballpark? It also looks like the tank is wider than it is long?

[Rainman]

Nice! How'd you route the fuel lines?, Did you reuse the spare tire brace?

Haven't gotten to plumbing yet. Didn't think the tire brace would work since the tank is shorter at the rear. I might look into using it though.

are these f150 tanks baffled for fuel injection?

This one isn't but I think later model years should be.

Hey Rainman, the numbers I found on that tank are 34 3/4" X 27" X 8" deep. Are those in the ballpark? It also looks like the tank is wider than it is long?

Yes, its wider than it is long. After I pounded the side lips down, it's 33" x 27" and depth tapers from 6" in the rear to 8 1/2" at the front.

[Tigger4X]

are these f150 tanks baffled for fuel injection?

i have only measured but the tank i have from an 87 suburban should fit tight between the framerails (turned 90*), and it just might fit into the channel of the crossmember but worst case the crossmember can be moved forward a bit. the tank has got to be close to 40 gallons though. i just have to find someplace to empty it (its 3/4 full!) and i can test fit it a little easier. i'm not sure how far it will hang down though, we'll cross that bridge when i get to it.

Al

40 GALLONS Now thats what I am talking about! The biggest aux tank that I have heard of being installed in an FSJ was a 33 gallon tank, in Riverbeast.

AL .... is this Suburban tank baffled for FI? And which crossmember are you referring to? Got pics??

Thanks

[Rainman]

Change of plans (for now)

I picked up one of the trailblazer units at the U-pull-it today. Going to see how that works. Needs a cleaning, hot tanking, and some small patches. Based on the smell from the tank, I don't think there's been gas in it for at least 5 years.

[JeepNOFEAR]

Could you tell me on the info you know about these f-150 tanks and the sending unit/fuel pump in them?

[shimniok]

The return nipple should be easy enough to weld to the tank (or the sending unit)

Weld... to a used gas tank?? Ermm... If not already mentioned, I don't think that's a great idea...

Michael