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  #1  
Old 7 Apr 2007
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Defender fuel tanks underneath

I'd like to free up space inside my 110 by removing the 160 litre ali fuel tank I have inside and putting a tank underneath somewhere on my 110.

I know I can't get a 160 litre tank underneath a defender, but does anybody have any suggestions or suppliers of tanks that can help get the maximum?

I know I can get a 90 fuel tank under the drivers seat. Or many people seemed to get 60-70 litres under one side (and a water tank on the other).

I'd like to keep them plumped in seperately as they are now.

Any suggestions or experiences to share?

Many thanks!

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  #2  
Old 7 Apr 2007
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We have two fuel tanks in the wolf, a standard 110 tank, and a standard 90 tank, I believe, we had looked into the option of getting a larger replacement for the 90 tank, but opted against it. I also know that a larger main tank is availiabe, offering up to 40l extra.

The tanks are connected with a rotor switch allowing you to switch which tank is in use. The tanks are fuelled separately using the defender 90 and defender 110 fueling points.

I am not sure how difficult this is to set up, but I don't think it would be that hard, though ours was set up from manufacture.

Location of fuel fillers:



I don't think I have any photos of the fuel changeover switch, and I know I have none of the actual fuel tank installation. I may be able to get one for you.

Sorry I can't be more help other than to say it is very possible.
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  #3  
Old 7 Apr 2007
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Dont Allisport do 110 side tanks ? - wouldnt be too difficult for them to do - in front of rear tyre - the space occupied by Lone Wolfs jerrycan holders - then use a couple of oe fillers. -should be able to get 60+ litres in each side easily... some supporting outriggers welded on the the chassis and some steel side bars to help protect them (a good mod anyway)

This is the route I would go with a 110 Hardtop - Im looking for a lhd 110 for a new project - I must be getting old.....needing more room.....

or as youve mentioned you can fit a rhd 90 tank to the rhs of the 110 and a lhd 90 tank to the lhs - just have to move your batteries though...

either of those should give enough range.......

LoneWolf - hows the trip going ? everything working OK ? - thats a very Nice Wolf you got - glad to see its doing what it was supposed to....

cheers.
Grif
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Last edited by Gipper; 7 Apr 2007 at 18:32.
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  #4  
Old 7 Apr 2007
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Darrin,

Have you considered a flat tank on the floor inside the load space?
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  #5  
Old 7 Apr 2007
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Thanks Gold Wolf - hows the canned ham supplies lasting?

I saw a Series Landy of some kind today with a filler there, and this is what Matt Savage had suggested, so certainly a reasonable option. I don't want to move the batteries, so I guess a tank under the drivers seat and perhaps another on the righthand side (if it's possible to have a double filler?) would give good capacity, but leave the vehicle badly lopsided ;-)

But I guess a water tank on the other side and a few heavy packed spares on that side would help even it out, and 80% of the time I only drive filling up the original tank on the back.

How many litres does it hold?

Roman, I really want to empty out the inside as much as possible so aren't really looking at any tank solutions to put in there. Any surely filling would have the potentail to be messy?

I like the option of a water tank on one side and a fuel tank on the other, both underneath and in front of the rear wheels. I'd have to removed my jerry can lockers but thats no big deal - so has anybody done this?? ;-)
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Old 7 Apr 2007
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You could fit a 90 side tank to the RH side (and lose the "toolbox" under the drivers seat) and if you didn't mind moving the battery, you could fit a second tank under the LH seat also.

that would give you 3 tanks, and you'd need a changeover tap, like the ones that AndAir make,they're a little pricey (about £160) but definately quality items. designed for aircraft they have to be to good standards.The above link shows their "duplex" tap, but i'm sure they do a triple changeover, or you could use two taps, "main or aux" and then "aux 1 and aux2"

Or get Andy at Allisport to make you an "under wing" tank for the rear wings, right at the back of the vehicle, he might even be able to get them to fit around the side jerry-can lockers you've got.
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Old 7 Apr 2007
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I am sure we get about 260litres in our tanks in total, though we could have sacraficed some ground clearance to get 300litres. The fuel tank selector switch in our wolf looks like it was designed for a light aircraft, and just controls a valve.

As for tinned ham supplies... Waiting for our chef to get back from Nepal/India... so I'd better send some more!

Our guys are doing well, and Dan is currently in Malaysia with the Land Rover club there. Unfortunately, I arranged for him to go to their club 10th Anniversary in the jungle, so he is missing the Grand Prix...


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  #8  
Old 8 Apr 2007
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We have the rear wing tank and matching water tank. It gives an extra 40l fuel and 30l water (because of the exhaust). The extra fuel tank isn't switchable but can be isolated if the main tank goes.We found a tin of sweetcorn blocked the main pipe between the tanks, and plumbed the feed and return pipes to the smaller pipe and breather respectively. Top bodging We did 1000 miles like that

We talked to alisport about tanks in the wings where side lockers go but decided the cost was prohibitive and settled for lockers with 2 jerries each side. It gave us 200l total which we found was more than enough.
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Old 8 Apr 2007
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Cheers - I also have the back wing tanks (fuel and water) so it's really about adding a much bigger tank underneath if possible.

Does anybody know of any other suppliers other than Allisport who does this sort of thing? Preferably close to the South East?
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  #10  
Old 16 Apr 2007
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Defender battery relocation

If you banish the batteries from underneath the passenger seat, where can they be relocated ??

Andrew.
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  #11  
Old 16 Apr 2007
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From what I have gathered over the last week from Dunsfold and Matt Savage, you can:

- Put in a standard LR part tank under the drivers seat (remove the tool box). You fill it up by removing the seat bottom and unscrewing the filler cap. It's 10 gallons, so 45 odd litres I think? (Cost of tank £160 plus mountings etc though I found a non LR tank for £106)

- Put in a 90 tank under the drivers seat, but also then have to put in a filler pipe and all that guff as per the picture of the Gold Wolf above (and making it lockable). This I believe is only 12 gallons though? And requires more work and parts for only a few litres extra

- Move the batteries (in my case probably behind the internal bulkhead, on the floor where the bulkhead slants in) and put in another of the tanks as described in the first point - or maybe a 90 tank could also fit?? This would give you about 95 litres and allow the fuel to be carried in a great position. Filling is slightly painful, but it does allow you to open the filler and look staright into the tank which is a plus.

Buying the non LR tanks, and with some DIY and some labour costs, I think it could be done for about £500 (fuel tanks switchs are an expensive cost to bare in mind). This plus 3 extra jerries in the side lockers gives me the same as my 155 litre internal tank.

I'll probably give it a go in a month or two - is anybody interested in my 155 litre Ali tank if so? I also have the sexy racing filler cap etc
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  #12  
Old 30 Apr 2007
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Hose sizes

Hello everyone,

I am also currently trying to install my 90L fuel tank under the drivers seat of my 110, and although I have freed the space I am a little stuck on the specific tubing I should buy. Has anyone got any idea what the common sizes for this kind of conversion are? Moreover, is there anyone who has recently done this and can give me any tips?

Many thanks Lotty
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Old 12 Jul 2009
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Are these rear wing tanks easy to fit on a 110? Just shove them up and bolt them in or what? I found Frontrunners but wonder how exactly they fit.

Do these tend to be used for water as the filler is inside or does the RH one go to the fuel filler and carry on down to the main tank - a kind of upper reservoir?

thanks

Ch
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  #14  
Old 12 Jul 2009
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"a kind of upper reservoir"

Yup, many are like that - my Allisport one is anyway.

Not super easy to fit, but doable in 3 hours. Easy enough to get the tank in place, but you need to shorten the filler pipe both from the outside filler to the new tank, and from the new tank to the main tank.

Then plumb in the over flow & breather pipes etc

Speak to Matt as he has fitted them etc
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  #15  
Old 3 Aug 2009
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We fitted the FrontRunner oversize main tank and the 40 litre 'corner tank' in the back of our 110, together with sill tanks on each side - total of 265 litres capacity, but the left hand sill tank will be replaced by a water one since we won't need that much capacity again (for the Gilf we had to carry 485 litres total fuel - think 2 x 200 litre drums as well as a standard tank for an idea of how much we carried!)

The rear corner tank is the best, but it only gets you 40 litres extra, but it takes up wasted space, while the sill tanks reduce clearance a little - not so much by hanging down but by making you more nervous about grounding out the underside - but they give about 55 litres each side (slightly less on battery side, slightly more on right side) without eating into the interior or underseat storage at all

Tony
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