Originally Posted by jeeplj8
This is truly one of the PITA of going distances with out rig.
First off, with a 26 gallon tank, we have to stop A LOT!
We had a F250 with the little tank.
Take a look at this, it's called harpooning.
Do a google search for
"harpooning an F250"
Here's a good forum to join.
Harpoon The Tank? - Ford Truck Enthusiasts Forums
I used post #8
when I harpooned our tank, the very BEST free DIY
I've ever done!
"If you do this, you will need a $20 tubing cutter. This makes cutting the tube a snap. You want to also cut the fuel inlet tube as it extends down into the tank.
The way I did it:
1. Jack the left rear axel up, put a 2 ton jack stand under it.
2. Remove the left rear tire. This makes getting to the hoses a lot easier.
3. Put 2 jacks under the tank, front and year.
4. Remove the 3 screws securing the fill neck to the fender.
5. Loosen the [COLOR=blue !important][COLOR=blue !important]hose [COLOR=blue !important]clamps[/COLOR][/COLOR][/COLOR]
at the filler neck and vent tube.
6. Remove the filler neck.
7. Loosen and remove tank retention straps.
8. Slowly lower tank as evenly as possible
9. Unhook the two vapor vent lines (not clamped).
10. Lower the tank until it is on the ground being careful that the fuel lines and sending unit cable are not damaged.
11. With a large [COLOR=blue !important][COLOR=blue !important]strap [COLOR=blue !important]wrench[/COLOR][/COLOR][/COLOR]
( I modified mine by substituting a length of fan belt) remove the large (6” in diameter) retaining nut holding the module containing the fuel pickup and the fuel gage sending unit.
12. Remove and tie this assembly out of the way in a safe place(I tied mine to the drive shaft). Leave the lines hooked up.
13. Carefully slide the tank through the opening at the left rear wheel if you have running boards.
14. Remove all diesel fuel by dipping with a dipper made from a milk carton or bottle. Put into a clean fuel container.
15. With a ratcheting [COLOR=blue !important][COLOR=blue !important]PVC [COLOR=blue !important]Pipe[/COLOR][/COLOR][/COLOR]
cutter, reaching inside the tank cut the vent tube within 1” of the top of the tank.
16. Reaching inside the tank, Cut off all but 1" from the vent line.. Remove the scraps.
17. Place the tank under the truck 6” to the left of where the tank goes.
18. [COLOR=blue !important][COLOR=blue !important]Install[/COLOR][/COLOR]
the fuel pickup and sending unit module. Tighten retaining ring with strap wrench.
19. Place the jacks under the tank.
20. Carefully raise the tank, feeding the lines over the [COLOR=blue !important][COLOR=blue !important]frame[/COLOR][/COLOR]
, watching the fuel module lines for trouble.
21. At this time connect the vapor vent lines that plug into the tank, front and rear. These have no clamps, just push fit.
22. Jack the tank all the way up in the rear.
23. Install the rear strap
24. Move the front and move the tank around to suit your purpose make sure both hoses are in position.
25. Jack up tank in front to the top and install front strap.
26. Install hoses to filler neck.
27. Install three small screws in the filler neck.
28. Remove jacks from tank.
29. Jack up the axel, install the tire and remove the Jack stand.
30. Fill the tank with the diesel you removed."