Fuel Tanks for Willys CJ

HiHood

New member
I am thinking about a new gas tank for my 3B project. I basically am down to three choices. I JUST decided on using a Buick V6 as the motor, and I want more than the stock 12 gals the CJ originally came with . . . would you;
A) use the homemade gas tank that stretched clear across the Jeep under driver's AND passenger's seats.
B) Buy a reproduction of the original OEM AND a OEM style aux tank for under the passenger seat as well.
C) Buy a 20 gal. aluminum fuel cell from Summit that would fit in the bed between the fenderwells.


I would go with the A as it has the capacity I want but I have concerns about it's integrety. It would definately need flushed, checked for leakage and re-lined.
What do you think?:???::???::???:
 

This is the homemade gas tank that was in the Jeep when I got it prior to disassembly.
 

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Now I used to be nervous about the tank on my 70 GMC being in the cab behind the seat. But I owned it for 10 yrs before it was stolen, and it never exploded or leaked.8).........I don't see how it would effect the outcome of a rollover being under the seat, under the jeep or in the back. My only concern would be the integrity of the homemade tank.

I pick (B):shades:
 

The stock position, as you probably already know, is under the driver's seat. If I do use this homemade one, I would need to get it checked for leaks and lined on the inside. Then fab up some straps to bolt it down good. What appears to have happened before also was that the pick up is on the driver's side of the drive train tunnel. All the fuel on the passenger side was deadlocked. There is a pipefitting under that side as well that I was going to 90 a run over to the driver's side to a "T" and then on to the fuel pump. Originally there was a toll box under the passenger side.
 
I would go with the existing stretched fuel tank you have for it's capacity. It appears to me that it's pretty well built (not sheet metal). The only down fall i could think of is it's internal structure. Does it have any baffles to control the fuel from slushing excessively?, this will make your fuel level sending unit short lived. Also, where is the pickup tube ?. This may or may not make a difference to you depending on how you intend to use this rig. If the pickup tube is only on the driver side and your trailing with the driver side higher than the passenger, your going to end up pumping air instead of fuel.So yes you will need to use the fittings on both sides to enable the fuel pump to siphon the fuel from both sides.(Just a thought, you might need a valve on both fittings. I just haven't given it much thought on if one end of the tube is pumping air and the other side with fuel,will the fuel pump stay primed?) As for a huge ball of fire in case of an impact or collision, you wouldn't be changing that situation if you switched to an OEM replacement. However, the aluminum fuel tank will be tha safest choice for that matter.
 
Now I used to be nervous about the tank on my 70 GMC being in the cab behind the seat. But I owned it for 10 yrs before it was stolen, and it never exploded or leaked.8)......... :shades:


You were right to have been. I remember two people burning to death inside the cab of their Chevy truck one morning in Seattle after being involved in a domino accident on Interstate 5. What happens is the gas tank slaps back in forth behind the seat during the collision causing the filler tube to break away from the tank spilling gas into the cab. Anything can ignite it. In this case the doors were jammed and wouldn't open leaving the bystanders helpless to do anything but listen to the blood curdling screams as the poor man and woman inside as they begged for help while burning to death. And I know they haven't been the only ones.
 

You were right to have been. I remember two people burning to death inside the cab of their Chevy truck one morning in Seattle after being involved in a domino accident on Interstate 5. What happens is the gas tank slaps back in forth behind the seat during the collision causing the filler tube to break away from the tank spilling gas into the cab. Anything can ignite it. In this case the doors were jammed and wouldn't open leaving the bystanders helpless to do anything but listen to the blood curdling screams as the poor man and woman inside as they begged for help while burning to death. And I know they haven't been the only ones.

why are you shouting?

a chevy truck had the tank behind the seat huh?
 
On the subject of gas tanks I have an old under the seat gas tank and I am looking to replace it. Now their are choices need to know plastic or metal to replace the original. The old gas tank has succumbed to rust on the inside. :???:
 
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