Any need for an external aux fuel tank? - Defender Source
Defender Source  

Go Back   Defender Source > Defender & Series Technical Discussions > Defender Technical Discussions


Reply
 
Thread Tools
  #1  
Old May 18th, 2008, 04:48 PM
RoverC
Status: Offline
Cliff
1997 D90 ST
Member
 
Join Date: Nov 2003
Location: Seminole, FL
Posts: 482
Any need for an external aux fuel tank?

Hey guys,
I still have an uninstalled 9 gal aux fuel tank that mounts to the frame under the passenger side.
I had it slightly modded to fit with Bill Burke rocksliders, but never mounted it.
It is angled so that it doesn't hang below the frame.
Is there anyone out there that may be able to make these out of SS? and integrate a fuel pump or at least a sender (maybe a factory one?).

I am willing to provide the tank to duplicate (for a major discount of course). This one was made out of heavy duty steel and has some minor surface rust. One out of SS or an alloy would be better Id think.
This was made by a co out of CA I think back in the late 1990's.

Chris V bought it, never used it and sold it to me 7 years ago.

I also have a skid plate that was made to protect it.

Anyone on the list work with SS and can make something like this?

The way this one worked, was when your main tank got low, you turned on the fuel pump on the aux tank, emptying it into your main tank. That design is ok, but there are better ways to do it Im sure.

Anyone interested?

I can take some pics if so
Reply With Quote
Sponsored Links
Advertisement
 
  #2  
Old May 18th, 2008, 05:47 PM
ini88's Avatar
ini88
Status: Offline
Daniel Marcello
Alloy+Grit Creative Director
Member
 
Join Date: Aug 2005
Location: Queens, NY
Posts: 2,816
I would be interested if you were able to fab some up.
__________________
1955 Series I
1975 FC101 Vampire
1994 Defender 90 #916
1967 Lancia Fulvia
1974 Alfa Romeo GTV
Reply With Quote
  #3  
Old May 18th, 2008, 06:09 PM
themaxx's Avatar
themaxx
Status: Offline
Ade
94 ST
Member
 
Join Date: Aug 2006
Location: MD
Posts: 1,835
Registry
If you find someone and at a reasonable price...I'm in.
__________________
"It insists upon itself" Family Guy
"Your Defender insists upon itself" Dave Parker
Reply With Quote
Sponsored Links
Advertisement
 
  #4  
Old May 18th, 2008, 06:21 PM
RoverC
Status: Offline
Cliff
1997 D90 ST
Member
 
Join Date: Nov 2003
Location: Seminole, FL
Posts: 482
I think these steel ones sold for around $900.
Not sure what a SS one with sender and or fuel pump may run.
What is "reasonable" for something that doesnt readily exist?
Reply With Quote
  #5  
Old May 18th, 2008, 06:44 PM
themaxx's Avatar
themaxx
Status: Offline
Ade
94 ST
Member
 
Join Date: Aug 2006
Location: MD
Posts: 1,835
Registry
Good question...

$900 for a 9 gal tank...WOW! For some reason, I was under the impression that these aux tanks cost under $300... I guess I'm way off.

I'd like to find out who RyanS used when he had a custom tank made...here's a post from almost a year ago.
__________________
"It insists upon itself" Family Guy
"Your Defender insists upon itself" Dave Parker
Reply With Quote
  #6  
Old May 18th, 2008, 07:55 PM
dmarchand's Avatar
dmarchand
Status: Offline
David Marchand
'97 D90 SW Arles
Member
 
Join Date: Sep 2003
Location: New England
Posts: 2,862
Registry
Don't inegrate the pump. Would suck to have to drop the tank to replace it.
Reply With Quote
  #7  
Old May 18th, 2008, 08:10 PM
RoverC
Status: Offline
Cliff
1997 D90 ST
Member
 
Join Date: Nov 2003
Location: Seminole, FL
Posts: 482
Well, it wouldnt be running all the time like the factory pump does. And its allot easier to drop it than the rear tank.
I have had mine for 11 years and the stock pump still worked fine albeit it only has 87k miles on it.

I think this one is/was a RA one. Pretty beefy actually. That plus the skid leaves me with no more worries than the rear tank does.

Aero was charging $800+ for their installed, so same ballpark.

This one would have taken about an hour to install if I didnt have BB sliders. There is only 4-6 bolts that hold it in anyway.

Is Ryan S still around?
Reply With Quote
  #8  
Old May 18th, 2008, 08:15 PM
themaxx's Avatar
themaxx
Status: Offline
Ade
94 ST
Member
 
Join Date: Aug 2006
Location: MD
Posts: 1,835
Registry
Do you have pictures of the tank installed?

I've PM'd Ryan...
__________________
"It insists upon itself" Family Guy
"Your Defender insists upon itself" Dave Parker
Reply With Quote
  #9  
Old May 18th, 2008, 08:23 PM
RoverC
Status: Offline
Cliff
1997 D90 ST
Member
 
Join Date: Nov 2003
Location: Seminole, FL
Posts: 482
Those Long Ranger ones dont give prices, I think only fit 110 models (?) but I do like where they say "Sender Unit Supplied To Interface With Original Gauge"
So at least you know how much fuel is in each tank.

Also, the RA ones came with the template and extra filler neck to be mounted between the door and the rear arch like in the older trucks. I know there was an arles blue truck out of TN that has/had this setup, cant remember his name, maybe Derek Marleys (?) old truck? Am I showing my age? ;-)

Follow-up Post:

No, it didnt fit w/ my sliders so I had it modified to clear, then its sat ever since.
Was getting parts out to sell, and came across it.
The only thing I didnt like about it was the material it was made from, and that it didnt have a sender of some sort.
If it had an internal pump, it would be nice to throw a switch or turn a lever like in the old trucks and run off the spare tank.
Also good if your main pump ever went out, you wouldnt be stranded.
Reply With Quote
  #10  
Old May 18th, 2008, 09:42 PM
artm
Status: Offline
Arthur Maravelis
97 SW
Member
 
Join Date: Oct 2003
Location: Boston, MA USA
Posts: 985
Sorry for the long-winded reply...

My almost-ideal setup would be:

1. flip fill switch for aux tank
2. start filingl up reg tank
3. aux pump fills up aux tank and stops when full
4. finish filling up reg tank
5. when reg tank is low, flip aux tank swtich to dump into reg tank

To avoid sucking out the reg tank in #3, you may have to do it this way:

6. start filling reg tank
7. when 3/4 full, flip aux switch and fill that up
8. aux pump stops when full and continue filling reg tank

This way, assuming the aux tank holds 1/2 the reg tank's fill, you won't suck dry the reg tank. You will have to keep an eye on the reg gauge to see when you've hit 3/4. A pain. So, you can simply fill up the reg tank, fill up the aux and finish filling the reg tank.

No cutting up for a second filler. Always hated that.

About as automatic as you can get without needing special metering circuitry. All you need is a second gauge. In a perfect world, the aux pump would read the reg tank level, draw from it when, say, 3/4 full and feed it when 1/4 full. Of course, you can set these levels to whatever you want, through circuitry.

Two problems:

1. need to wire electric valves into system to direct flow. A little touchy..

2. typical high-flow pumps do, say, 120 GPH. At 2 GPM that's a pretty long time waiting for the aux tank to fill.


My ideal setup would be:

Install the aux tank so gravity does the work: with one line between the tanks, The aux will fill by gravity when the reg is 1/2 full. When the reg goes below 1/2 gravity will feed from the aux to the reg, the level dropping in both. So, the reg gauge will work normally until reg is 1/2 and will read more slowly when below 1/2, since we're drawing from the aux tank as well. Of course, you can use a valve switch to open and close the aux so you fill/empty it as you wish. Nice!

Now, where do fit the aux to make this work?

FINALLY: perhaps fabbing a cusotm fuel cell with a larger capacity is best. I seriously doubt the stock tank has the best geometry, size-wise. Heck, for $900 it may just be possible to make one 9 gallons larger!
Reply With Quote
  #11  
Old May 18th, 2008, 09:48 PM
RoverC
Status: Offline
Cliff
1997 D90 ST
Member
 
Join Date: Nov 2003
Location: Seminole, FL
Posts: 482
I dont think you could fit another 9 gal worth of fuel into a tank and make it fit under the back, unless it was dragging the ground?

The side tanks sit about level with or maybe even below the rear tank, so no way to make gravity fed I can see.
You would have to put the tank inside the rear of the truck.
Reply With Quote
  #12  
Old May 18th, 2008, 09:54 PM
artm
Status: Offline
Arthur Maravelis
97 SW
Member
 
Join Date: Oct 2003
Location: Boston, MA USA
Posts: 985
Perhaps 9 gals is a stretch for a custom cell. I'd settle for 5. You'd be surprised at what they can do with custom cells to fit irregular spaces.

No, inside the rear and higher does not work. You want the bottom of each to be at the same level. One hose between the two, on the side and as close as possible to the bottom is all you need.
Reply With Quote
  #13  
Old May 19th, 2008, 12:47 AM
RoverC
Status: Offline
Cliff
1997 D90 ST
Member
 
Join Date: Nov 2003
Location: Seminole, FL
Posts: 482
still dont see that its possible and the side tank is lower than the rear tank
Reply With Quote
  #14  
Old May 19th, 2008, 12:59 PM
artm
Status: Offline
Arthur Maravelis
97 SW
Member
 
Join Date: Oct 2003
Location: Boston, MA USA
Posts: 985
See the pic. The theory is simple.

If the aux is lower then you'll always have some fuel in it that can't get to the reg tank.

To avoid problems of starvation, the pump setup looks better - if there are really high-flow pumps available.
Attached Images
 
Reply With Quote
  #15  
Old May 19th, 2008, 01:55 PM
RoverC
Status: Offline
Cliff
1997 D90 ST
Member
 
Join Date: Nov 2003
Location: Seminole, FL
Posts: 482
what I didnt see as possible was making another tank for the stock location that would hold an additional 5 gals. I have had my tank out a few times, and just dont see how.

as to the pump, back to my thoughts on just using a stock LR one w/ sender since its all one unit anyway. You could run off either tank and know just how much is in each. A simple switch for activating one while it deactivates the other. The gauge would then also show whichever tank was selected. An external pump could be used, but then there are location issues, wires that may get cut or damaged, noise from the pump etc.

Obviously the disigners of the Aero and RA ones decided to use the one tank into another for a reason, but I think having a backup pump is a great idea.

Follow-up Post:

So does anyone know who can make these out of alum or SS? I have the tank, just need a fabricator who is near a D90 to check for fitment.
Reply With Quote
Reply

Lower Navigation
Go Back   Defender Source > Defender & Series Technical Discussions > Defender Technical Discussions

Tags
fuel, fuel tank

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
International HS2.8L Michael Defender Technical Discussions 448 April 21st, 2017 04:58 PM
300 Tdi Egt Q?????? Buckon37s Defender Technical Discussions 37 July 11th, 2012 11:26 AM
Aux tank and LR winch bumper Jase For Sale - Parts 10 July 1st, 2005 06:38 PM
Leaky Fuel Tank cbass Defender Technical Discussions 12 June 2nd, 2005 04:50 PM
Rover-X Aux Fuel Tank and kit 4Sale bigrenna For Sale - Parts 2 November 18th, 2004 05:35 PM


All times are GMT -5. The time now is 05:19 PM.


Copyright