Dual gas tanks

feel the need to change or modify your mutt? This is the place to discuss it.

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Dual gas tanks

Unread post by MUTT Vet » November 25th, 2008, 3:27 pm

I have a spare gas tank for my A2 and i was wondering how hard or feasible it would be to modify the passenger side to accept a second gas tank and relocate the batteries somewhere else.

I've got a gas pump and fuel switch from a 94 F250 my dad gave me thats just been sitting gathering dust.

The passenger side looks like with just slight modfication a second gas tank would fit with no problems.

30 gallons of fuel for the long off road adventures would be nice.
Eric
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Re: Dual gas tanks

Unread post by whirook » November 25th, 2008, 4:05 pm

I guess you could split the tank at the middle seam and reattach it so the neck faced out on the passenger side.

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Re: Dual gas tanks

Unread post by MUTT Vet » November 26th, 2008, 9:47 am

whirook wrote:I guess you could split the tank at the middle seam and reattach it so the neck faced out on the passenger side.
I was going to cut off the opening and weld a plate on it so the second tank would be closed off except for the tube connecting it to the first tank. I was going to use the pump to transfer guel from the secondary tank to the first tank. Or when filling up, transfer from the first tank to the second tank.

I don't know how I'm going to set the pumping action up.

I'm sure one of the old dawgs like Rick, Jim, Raymond, Ken, or Ralph are probably going to chime in and yell at me...again :wink: , but they'll end up helping me work it out or convince me not to do it as usual.

I know i aggrevate some people, but be gentle i bruise easily. :lol: This is just an idea, i'm picking brains to see if it's even possible.
Eric
***My Jeep won a war, your CJ delivers my mail***
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MVPA (#: 34922)
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M151A2 super MUTT (stolen)
M151A2 regular MUTT (in works)
Harley Davidson WLA w/ sidecar
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Re: Dual gas tanks

Unread post by raymond » November 26th, 2008, 10:35 am

:? Do you really go for long enough drives in areas where gasoline is unavailable to make this necessary. Remember that you have a 5 gallon gas can on the back of your jeep. If you're worried about how fast you go through a tank of gas and don't like going to the gas station as often, get a few cheap 5 gallon gas cans at Wally World and fill them and keep them at your house. Having a few 5 gallon cans of gas around the house in case of an emergency is a good idea anyway.
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Re: Dual gas tanks

Unread post by rickf » November 26th, 2008, 10:38 am

MUTT Vet wrote:
whirook wrote:I guess you could split the tank at the middle seam and reattach it so the neck faced out on the passenger side.
I was going to cut off the opening and weld a plate on it so the second tank would be closed off except for the tube connecting it to the first tank. I was going to use the pump to transfer guel from the secondary tank to the first tank. Or when filling up, transfer from the first tank to the second tank.



I don't know how I'm going to set the pumping action up.

I'm sure one of the old dawgs like Rick, Jim, Raymond, Ken, or Ralph are probably going to chime in and yell at me...again :wink: , but they'll end up helping me work it out or convince me not to do it as usual.



I know i aggrevate some people, but be gentle i bruise easily. :lol: This is just an idea, i'm picking brains to see if it's even possible.
How would you vent the tank?
Personally I would just put a fuel cell in the back, or a well anchored boat tank. They already have the fittings needed.
The pump you mentioned is for fuel injection is it not? If so you have way to much pressure to be playing with.


Rick
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Re: Dual gas tanks

Unread post by Horst » November 26th, 2008, 4:36 pm

Goerge should probably chime in here.

As far as I know he has a huge gas tank in his M416 which is connected to his M151...
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Re: Dual gas tanks

Unread post by moose53 » November 26th, 2008, 5:54 pm

rickf wrote: How would you vent the tank?
Personally I would just put a fuel cell in the back, or a well anchored boat tank. They already have the fittings needed.
The pump you mentioned is for fuel injection is it not? If so you have way to much pressure to be playing with.


Rick
I agree with Rick, it'd be much easier to mount a fuel cell/aux tank say under the rear seat than to move the batteries. The longer the batt cables the more loss you have, and a fuel line is much smaller and easier to route as well. I'd mount the tank in the back, run a line from it forward to a brass valve, run the front tank in the other side of the valve, and tie the output side of the valve to the line feeding the engine. fairly easy, and then you can switch tanks when you want.


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Re: Dual gas tanks

Unread post by rickf » November 26th, 2008, 6:16 pm

Horst wrote:Goerge should probably chime in here.

As far as I know he has a huge gas tank in his M416 which is connected to his M151...
After seeing pictures of Georges other toys over on the 503 I would pay attention to his ideas!

Rick
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Re: Dual gas tanks

Unread post by svramselaar » November 27th, 2008, 6:08 am

hello

the easy way

the two tanks has his own filler
return line from engine must be closed
take a Y cock see below

sucktion line tank 1 ___ ___ sucktion line tank 2
............................Y cock
.................. engine fuel line

for the two meters it is the same only with a switch

the other way return is working

take 4 24 V electric valve`s ( LPG system )
put them as below (# is a valve ) (the points are there for place at drawwing )

suck Tank 1 valve # .. # suck Tank 2 valve
.........................Y
................fuel line to engine


return Tank 1 valve #.. # return Tank 2 valve
..........................Y
............ return line from engine

take a Y switch and put the valve`s Tank 1 to one side and valve`s Tank 2 to the other

tank meter as above

george

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Re: Dual gas tanks

Unread post by toptiger » November 27th, 2008, 7:45 am

easy for you may be!! LOL
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Re: Dual gas tanks

Unread post by rickf » November 27th, 2008, 9:53 am

Good lord George, You even lost me on that one! I will read it through again when I wake up more. I still say a fuel cell is the easiest and safest way to go.
Rick
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Re: Dual gas tanks

Unread post by svramselaar » November 28th, 2008, 8:06 am

hello

it is not so difficult
below is a example from a Y valve
now it is open from the left to below
in the other stand it is open from the right to below (turn it 120 degre to the left )
Image
sucktion line from tank 1 go to the left connector
sucktion line from tank 2 go to the right connector
the fuel line to the engine go on the below connector
now you can choose witch tank you are using tank 1 or tank 2
the problem is the return line from the engine
if you are on tank 2 the return is on tank1
now you filling the tank 1 with petrol from tank 2
thads way the return must be closed
this can with no problem

for the tank indicator
below is a switch thad is a on on switch
Image
each tank has his own float
put the wire`s from the tank to the out side of the switch
in the midle the wire to the dasch
now you can choose if the indicator show you tank 1 or tank 2 fuel level

thad is the easy way to do it

i think now you get the other way also
the only thing is you make from two electric valve`s a Y valve
one Y for the fuel line to the engine from the two tanks
and one to get the return fuel to the right tank

below a electrick valve you need 4 of it
Image

greetings
george

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Re: Dual gas tanks

Unread post by rickf » November 28th, 2008, 10:57 am

AHA! That is better. What is that first valve from? I do not recognize it. My next question would be, why do you need a return line except for a vent and that would not have to be switched? The A1 had no return line and the A2 only has one to eliminate vapor lock. If you are not running in the desert then you would not need it. And please don't anyone tell me the carb will flood or the pump will blow up! Will not happen! The pump will supply between 3 - 5 pounds of pressure and that is it, it stops pumping until the pressure drops. I say this because I have heard those arguments before. :roll: :lol:

Rick
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Re: Dual gas tanks

Unread post by whirook » November 28th, 2008, 11:20 am

A few 5gallon cans is the way to go!!!!
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Re: Dual gas tanks

Unread post by raymond » November 28th, 2008, 11:41 am

rickf wrote:AHA! That is better. What is that first valve from? I do not recognize it. My next question would be, why do you need a return line except for a vent and that would not have to be switched? The A1 had no return line and the A2 only has one to eliminate vapor lock. If you are not running in the desert then you would not need it. And please don't anyone tell me the carb will flood or the pump will blow up! Will not happen! The pump will supply between 3 - 5 pounds of pressure and that is it, it stops pumping until the pressure drops. I say this because I have heard those arguments before. :roll: :lol:

Rick
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