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Unread 05-10-2013, 12:20 AM   #1
Diamond-x
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1991 XJ Cherokee 
 
Join Date: Aug 2008
Location: Socal
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1991 XJ GasTank Mod +5 gals

Anyone done this? I've read about and wonder if the air pocket is there for a reason. Is it a true 5 gallon addition? Any gotcha's?

Thanks!

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Unread 05-10-2013, 12:21 AM   #2
Diamond-x
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1991 XJ Cherokee 
 
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Location: Socal
Posts: 1,195
I should clarify, it involves trimming the breather tube which is inserted in the tank. Thanks!
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Unread 05-10-2013, 11:31 AM   #3
Crewdude007
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2001 XJ Cherokee 
 
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What mod? Is there a link?
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Unread 05-10-2013, 11:51 AM   #4
Project1
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1998 XJ Cherokee 
 
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Quote:
Originally Posted by Diamond-x View Post
Anyone done this? I've read about and wonder if the air pocket is there for a reason. Is it a true 5 gallon addition? Any gotcha's?

Thanks!
Yes .. I almost did this .. but when I read about it .. the reason there is extra room in the tank is because when the temp of the gas changes the actual fluid and fumes both expand. The extra room is to support this expansion. If you re-vent the tank this can be a safe mod, but IMO it was not worth it. I thought about getting a 15 gallon fuel cell with a pump, just to refill my stock tank, if I needed to carry more gas.

GO jeep has a good write up on this

All is you do is put an "j" shaped tube on the fill hole inside the tank .. the mod cost $2 and does make room for more gas however.
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