|Topic Review (Newest First)|
|08-23-2019 05:05 PM|
Originally Posted by TooManyToys View Post
psi releif if it hits a certain pressure but let's air in anytime mounted super high in the bed just Incas i over fill I want the filler to be the low point not the vent fitting
it was all in an attempt to get full flow fueling without auto shutting off the pump at the big rig station lol
|08-23-2019 01:24 PM|
|bismic||Harpooning is one of the best mods you can do IMO.|
|08-23-2019 11:34 AM|
Yep, that’s what promoted the design criteria, videos of ambulances burning. Ford ended up buying a whole lot of vans back, too. Entire fleets in some cases.
It carried over to the diesels, possibly due to an over compensation, but you have to also put into context that the diesel tanks have a vent on the top of them, not sealed like the gas tanks. We haven’t seen a big issue of diesel spills, but there are a lot of things done under caution. There is a one way vent valve, a small plastic one.
I’ve Harpooned two of my trucks.
|08-23-2019 08:17 AM|
Originally Posted by ChrisSki View Post
driving to the station i had one eye on the road one eye on the fuel psi and a hand on the ignition switch lol
it is just a slight annoyance to drive so far before the fuel gauge moves but i always have miles to empty displayed so i don't pay much attention
|08-23-2019 08:07 AM|
He even called the GM gods and the final answer was: Diesel don’t matter.
Gasoline expands and contracts wildly with change of temperature.
Toss cup of gas on street: temps climb changes from solid to gas in a minute. GONE
Toss a cup of diesel on street: it’s there for 30 years.
|08-23-2019 07:04 AM|
If anyone has a solution that's worked for them, I'd like to know. I've heard programming the PCM to a different size fuel tank does not work.
|08-23-2019 06:51 AM|
the rash of Ford Ambulance fires were all gasoline if I recall correctly ? metal tanks ? But preventing joe user from overfilling his tank and not being able to put fuel into and above the pick up/ sender fitting and hose clamps is not a bad idea IMO
and leaving room for fuel expansion is not bad either
I did the harpoon and get over 50 gallons now
(I harpooned my Titan tank ;-)
|08-23-2019 06:07 AM|
The changing of the “ambulance fire avoidance” vent tubes is the “Harpoon” mod, applicable to all years.
The “Hutch” mod is the removal of the cold temperature mixing and filter chambers from the 7.3L tank.
|08-23-2019 12:38 AM|
My F 350 DRW with 8' bed holds about 40 gals. I can fill it all the way up the filler neck without the mod but it is an aggravating task.
|08-22-2019 04:32 PM|
But if fuel storage increase is what your after it’s easily accomplished.
One tool makes it easy a hand squeeze pipe cutter. May have a name but here is my Rigid pipe cutter # RC- 2375
Once that top your gonna learn to hate is off reach in and snip off two vent pipes in rear of the tank close to top as possible.
I get almost 35 gallons in my short bed 29 gallon tank I NEVER got 26 into.
You tube has tips
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