Jon, the only other thing you have to think of is the vapour return line.
You have to cut it off at the original tank, plug that hole, then attach it to the 2nd tank, and your "fuel loop" is complete.
This is likely the route I would have to go for lack of options. I would prefer a true 2nd tank system where i could switch between tanks with an in-board switch, but I think i'd have to install another filler hose, or split the existing one.
The Adam Blaster
Two words, figure it out.....
> To: dakota-truck-moderator@bent.twistedbits.net
> From: jon@dakota-truck.net
> Subject: Re: DML: Larger gas tank?
> Date: Mon, 10 Nov 2008 22:49:58 +0000
>
>
> "Mr. Plow" wrote:
>
>
>> Doing a bit of searching it looks like moving the spare to a rear
>> bumper/tire carrier might be the best option.I have to first get the
>> bumper/tire carrier to do this though... lol I'd like to get a kit
>> with all the pieces i need for a setup to run a 2nd tank but the
>> actual tank will likely be a custom job. (Translation -- big $$$$)
>> :(
>>
>
>
> You might be able to find a fuel cell with dimensions that are
> close enough from someplace like Summit or Jegs. You'll still need to
> fab up a system to hang it, but using an off the shelf fuel cell would
> likely save a lot of money.
>
> As far as extra fillers, transfer pumps, etc. all of that can be
> eliminated by running a tube from the bottom of the stock tank to the
> bottom of the fuel cell. The catch there is the bottom of the fuel
> cell needs to be at the same level (or higher) than the bottom of the
> stock tank. Also, keep in mind that any portion of the fuel cell
> which is above the top of the stock tank will not be used, so vertical
> placement is critical. Also, you want to use a hose with a pretty
> good ID. When you are filling the stock tank, the fluid level will
> equalize between the tanks by flowing through the hose to the fuel
> cell. If the hose isn't large enough to flow about the same amount as
> the volume coming out of the nozzle at the gas station, your stock
> tank will fill before the fuel cell, then the level will slowly drop,
> you can put more gas in, wait, etc. If the transfer tube can handle
> the transfer "realtime", obviously this would make for a less annoying
> fillup. Unfortunately, I don't know what sort of diameter this would
> require. I suspect 1" ID may be a minimum. The size of your fuel
> cell in relation to the stock tank would play a role here as well. (I
> think that if both tanks were about the same size, the hose would have
> to flow half as much as what is coming out of the nozzle, if the fuel
> cell were half the size of your stock tank, the hose would only have
> to flow 1/3 as much as the nozzle, etc.)
>
> There is also the "heebie-jeebie" factor of tapping into the bottom
> of the tanks, so you need to make sure that your connection method is
> leakproof. I believe you can purchase bulkhead fittings, which would
> work basically the same as a bolt-in drain plug for an oil pan or
> trans pan, but of course they will need to be much larger. You'd
> probably need access to the inside of both tanks, so this may limit
> the placement options somewhat. Obviously, the transfer tube would
> need to be well protected as well. If it got cut or snagged, your
> entire fuel system will be drained.
>
> Putting together a system as described above obviously requires
> some foresight and planning, but once it is in place, it is probably
> the easiest to deal with in actual use - it basically is transparent
> to the user, you don't need to manage your fuel via transfer pumps,
> separate gas gauges, etc. You simply fill your tank as usual and
> drive like normal, the only thing different is that your vehicle now
> holds a lot more gas. Your low fuel light would also not be "correct"
> as far as the remaining gallons. For example, if it is set to come on
> with 2 gallons left, and your fuel cell is the same size as your main
> tank, you would actually have 4 gallons left when the light comes on.
>
> I should probably mention that I have no firsthand experience with
> such a system, that's just how I would do it if 'twere me. :-)
>
> --
> -Jon-
>
> .- Jon Steiger -- jon@dakota-truck.net or jon@jonsteiger.com -.
> | '96 Kolb Firefly, '96 Suzuki Intruder, Miscellaneous Mopars |
> `-------------------------------- http://www.jonsteiger.com --'
>
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