Excursion Harpoon Mod
Super Moderator
Joined: May 2004
Posts: 29,380
Likes: 118
From: Central Coast of CA
When I did the ITP pre-pump mod, I also did the harpoon mod on the Excursion. I can fill up that 44 gallon tank a LOT faster than I can my F250 because I haven't cut the tubes in my trucks tank yet.
William, Bill, reps for your posts. Pete, I got the dreaded "spread it around" bro.
Stewart
PS - Buy the PVC cutter. It works great and is well worth the price. Snip, snip and you're done.
William, Bill, reps for your posts. Pete, I got the dreaded "spread it around" bro.
Stewart
PS - Buy the PVC cutter. It works great and is well worth the price. Snip, snip and you're done.
Thread Starter
|
Tuned
Joined: Oct 2005
Posts: 331
Likes: 3
From: St. Louis, MO
Had a mechanic do it while he had to drop the tank to install my AirDog II 200GPH. Had to get just the right PVC cutter that I could only find at Ace Hardware. I told him to cut both tubes. He also beat out the filler nozzle but I haven't gotten to test that out yet. He filled the tank on my dime without telling me, which would have been fine but I was anxious to find out for myself how well the mod worked and whether or not it actually does now receive semi sized nozzles. Within a week or two I'll know.
Hotshot
Joined: Nov 2006
Posts: 11,286
Likes: 263
From: North of Greenville
And the difference will be absolutely ASTOUNDING!
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!
Joe Kucinski
Every 2026 Ford Truck Engine RANKED from WORST to FIRST!
Michael S. Palmer
The Best F-150 Deal of Every Trim Level (XL through Raptor)
Joe Kucinski
Super Moderator
Joined: May 2004
Posts: 29,380
Likes: 118
From: Central Coast of CA
Drop the tank, unscrew the assembly, reach in with PVC cutters, snip-snip, remove both cut pieces, screw assembly back on, reinstall the tank, enjoy! 
Screwing the assembly back on can be a beotch. It's a really tight fit and I swear it shrinks a tad after you take it off. Some guys put it in boiling water prior to screwing it back on to the top of the tank.
Make sure there is as little fuel as possible in the tank. It REALLY matters, especially if you do this by yourself.
It helps a lot to have a second set of hands. It's really almost mandatory in order to support the tank on the floor jack and unhook everything.
Stewart
Screwing the assembly back on can be a beotch. It's a really tight fit and I swear it shrinks a tad after you take it off. Some guys put it in boiling water prior to screwing it back on to the top of the tank.
Make sure there is as little fuel as possible in the tank. It REALLY matters, especially if you do this by yourself.
It helps a lot to have a second set of hands. It's really almost mandatory in order to support the tank on the floor jack and unhook everything.
Stewart
Post Fiend
Joined: Mar 2009
Posts: 11,798
Likes: 14
From: Mt. Shasta California
FTE Leadership Emeritus
Joined: Sep 2003
Posts: 12,235
Likes: 753
From: Houston, Texas
Drop the tank, unscrew the assembly, reach in with PVC cutters, snip-snip, remove both cut pieces, screw assembly back on, reinstall the tank, enjoy!
Screwing the assembly back on can be a beotch. It's a really tight fit and I swear it shrinks a tad after you take it off. Some guys put it in boiling water prior to screwing it back on to the top of the tank.
Make sure there is as little fuel as possible in the tank. It REALLY matters, especially if you do this by yourself.
It helps a lot to have a second set of hands. It's really almost mandatory in order to support the tank on the floor jack and unhook everything.
Stewart
Screwing the assembly back on can be a beotch. It's a really tight fit and I swear it shrinks a tad after you take it off. Some guys put it in boiling water prior to screwing it back on to the top of the tank.
Make sure there is as little fuel as possible in the tank. It REALLY matters, especially if you do this by yourself.
It helps a lot to have a second set of hands. It's really almost mandatory in order to support the tank on the floor jack and unhook everything.
Stewart
But what do I snip? I don't want to snip the wrong thing and then watch the fuel pour out on the ground instead of going into my tank....
Anybody have pics?
Post Fiend
Joined: Nov 2007
Posts: 9,549
Likes: 14
From: Payson, AZ
Just "Snip" the large tube that extends the filler neck, and the small vent tube. Cut them as close to the top of the tank as possible.
Use a hair dryer to heat up the large ring and it will go on easier.
Use a hair dryer to heat up the large ring and it will go on easier.
Super Moderator
Joined: May 2004
Posts: 29,380
Likes: 118
From: Central Coast of CA
Cut both off as close to the top as possible, maybe leaving an inch or two nubbed into the tank.
Use one of these...
...to cut the pipes.
Remove the pieces once they're cut and reverse your steps to re-install.
Robin also had a great idea to use a blow dryer to heat the ring. It really is a booger-bear to get back on unless you heat it.
Once done, pay attention when you're filling up, otherwise you'll probably have fuel splash out just as the nozzle cuts off. It happens to my Ex if I'm not careful. That's why I suggested maybe leaving an inch or two nubbed in, because I cut mine all the way at the top.
Here's Guzzles page regarding the mod...and more pictures.
http://www.guzzle7pt3.com/harpoon.php
Since you're dropping the tank, doing the Hutch mod or ITP's pre-pump mod is a really good idea. It's a PITA to drop the tank and you won't wanna do it again.
Guzzle has a write up on the DIY Hutch mod. He states it's about the same price as ITP's pre-pump mod.
http://www.guzzle7pt3.com/hutch.php
Stewart