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12-10-2019, 10:47 AM
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#1
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Senior Member
Join Date: Jan 2019
Location: Toronto, Ontario
Posts: 429
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Gas tank size after conversion?
2004 5.4 E350
I'm putting this in this section because it specifically has to do with a 4x4 Conversion.
I have a Quigley based conversion (It was done in Canada) and I understood that they needed to trim the gas tank for the transfer case.
For the first time after owning the van for almost a year my low fuel light came on. I usually never let it drop below a quarter tank but I was a bit lazy this week.
I knew I had a smaller tank but I was a bit shocked that I could only pump 85L which is approx 23 GAL.
This seems incredibly small for the size of this vehicle, is this normal?
When the funds allow I'd like to get a rear bumper that can carry external fuel which would give me another 15 GALs, but I'm wondering if I should consider upgrading the fuel tank as well.
Thoughts?
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2020 T250 AWD Ecoboost 148 High Roof Long
2004 E350 RB 5.4L 4x4 Chateau (SOLD)
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12-10-2019, 11:00 AM
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#2
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Senior Member
Join Date: Jan 2009
Location: Corvallis, OR
Posts: 5,300
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The trimmed-down fuel tank usually is around 31 gallons. Only the "nose" needs to be cut off. I'd try to verify the capacity before pulling the trigger on the new tank. Can you take a pic? Maybe they swapped in a smaller tank from something like an F150. Or maybe you do have 31 gallons in the tank available, but the fuel pump was damaged when it was put back together (or they put in the wrong one).
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2000 E450 dually V10 wagon
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12-10-2019, 11:07 AM
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#3
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Senior Member
Join Date: Jan 2019
Location: Toronto, Ontario
Posts: 429
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I recall when arctictraveller took a peak under my rig he said they trimmed the tank by "a lot". I will try to take a photo but I'm flying abroad for a few weeks so I'm not sure if I can get around to it quickly. Thanks for the advice.
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2020 T250 AWD Ecoboost 148 High Roof Long
2004 E350 RB 5.4L 4x4 Chateau (SOLD)
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12-10-2019, 02:48 PM
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#4
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Member
Join Date: Apr 2018
Posts: 50
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I haven't looked at my tank, so I can't confirm how much trimming was done, but mine is only 26 gallons. But mine van is a 2004 E350 4x4 that the previous owner did a body swap to an E150 camper type body. So they might have switch over the smaller tank from the E150.
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12-10-2019, 03:07 PM
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#5
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Senior Member
Join Date: Sep 2013
Location: San Luis Obispo, CA
Posts: 2,552
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I have an Agile conversion and I believe mine is right around 30-31 gallons. When my light comes on, I can fit about 27 gallons of gas.
Once the gas light comes on, I've driven approx 30 miles and I only get about 10 miles per gallon. Thats how I came to the conclusion that my tank is right around the 30-31 gallon area.
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2005 E350 Chateau - V10 - Agile Offroad 4x4
2012 CTS-V Wagon - For the baby...
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12-10-2019, 03:49 PM
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#6
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Senior Member
Join Date: Oct 2007
Location: Indy
Posts: 563
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I have an 08 Quigley and have put 28 or 29 in it several times. I think I put 30 once when I ran it dry, but that's another story.
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2008 Ford E-350 Quigley 4x4 V10 - 164,000 miles
RB50, PH Top, Dual AGM Group 27 Deka, 2000 Tripplite Inv., No Propane or Water Systems
Van Weight 8,100 pounds, added one rear leaf spring, BFG AT KO LT265/70R17 E Tire press 50psi.
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12-10-2019, 11:54 PM
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#7
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Senior Member
Join Date: Jul 2011
Location: SF Peninsula
Posts: 809
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I don't have a Quigley, but still have a cut-down and re-welded tank. I've put 24.mumble gallons into it on a number of occasions and have not dared run it much lower. It may have as much as another two gallons at that point.
My tank clears the transfer case more than comfortably, so I could see others having remained larger.
In the van that takes me four or more hours to burn through that much fuel, which doesn't bother me as a cadence for stops. I do carry extra fuel if I'll be spending a bunch of time in 4-low.
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'99 EB ex ENG KSWB news van, low rent 4x4 conversion (mostly fixed by now), home built interior.
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12-11-2019, 12:00 AM
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#8
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Senior Member
Join Date: Sep 2018
Posts: 619
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Quote:
Originally Posted by Cyrull
2004 5.4 E350
This seems incredibly small for the size of this vehicle, is this normal?
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Ford never saw the need to put a lot of fuel capacity in these vans, for some reason. I have an older E-250 2WD with dual tanks, and their *combined* capacity is not quite 40 gallons. The later ones got a bigger single tank, I think, but they were never really built to tanker a lot of fuel.
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N8SRE
1990 E-250 Sportsmobile w/ penthouse top, converted when new by SMB Texas.
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12-11-2019, 10:01 AM
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#9
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Senior Member
Join Date: Jul 2013
Location: So Cal
Posts: 4,046
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It would be helpful if folks have SMB, Quig, Quadvan, etc conversions to put that in their posts.
I have an Advanced 4x4 conversion....they use a crazy extension tube between the trans and transfer case..it's about 5" long. This leaves less room for the gas tank.
That being said it seems like my cut down tank is about 28 gal.....and that would make sense that other conversions with NP27X transfer cases being around 31 gallon without the extender tube that I have.
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2008 E350 RB passenger 4WD SMB penthouse
2013 KTM 350 EXC
2008 KTM 250 XCF-W
2003 Honda Element
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12-11-2019, 11:19 AM
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#10
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Senior Member
Join Date: Mar 2013
Posts: 4,234
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It's also possible your low fuel light comes on a bit early, but the only way to know for sure is to either completely empty the tank and refill, (siphon it?) or pull the sending unit to test. As for an different tank, I don't know the rules in Canada, but here in the U.S. it's difficult to get a bigger gasoline tank installed due to emissions regulations. Diesel tanks are no problem though. It could also be less expensive to carry some extra in cans, depending on how much you spend to mount them.
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Arctic Traveller
KC6TNI
2001 GTRV
Advanced 4wd
Agile Ride improvement package
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