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Author Topic: Gas tank mod worked!  (Read 7027 times)

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Offline smashcoast

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Gas tank mod worked!
« on: December 26, 2009, 09:24:54 PM »
(Thanks Jeff) I just installed my Kilby gas tank skid and it is beefy and raises the tank 1" like claimed!

While I was at it I printed up Jeffy's Gas tank mod and went to work. In a 97TJ  the tube is molded to the tank and 8" long inside the tank. So I cut it as close as I could get to the tank. Also the fuel gauge was past the red and there might have been almost 2 gals in the tank still.

So after I was done installing everything I went to Chevron and pumped 17.8 gals! Normally when the tank is that low I could get close to 13 gals in the tank, so it works!

So with almost 20 gals in the tank and 10 gals in gerry cans  I should have plenty of fuel for some long trips! :biggrin:
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Offline Jeffy

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Re: Gas tank mod worked!
« Reply #1 on: December 26, 2009, 11:16:38 PM »
It makes a pretty big difference.  My range on one tank is a little over 300 miles with highway driving.  I still haven't gotten around to getting a Kilby Skid.  I've debated on if I want to do a stretch and use a new tank or just leave the wheelbase alone which has set me back.  I'll probably jsut leave it alone and go with a skid plate and call it good.
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Offline smashcoast

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Re: Gas tank mod worked!
« Reply #2 on: December 27, 2009, 08:51:33 AM »
It's a good skid, I also got their steering box skid. I wanted one that didn't require a boby lift and raised the tank 1". Plus it was 20% at 4wheel parts black friday sale  (which was a week before thanksgiving).
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Offline TahoeYJ

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Re: Gas tank mod worked!
« Reply #3 on: December 27, 2009, 09:54:15 PM »
I've known about the gas tank mo from even before I owned my YJ but never really considered doing it. Seen an ongoing thread on JF about it and after seeing this today, I decided to take a whack at it. Took me about 40 min to do it by the time I did everything. Still have yet to go top off the tank but knowing I can now drive to Tahoe and even drive around town for a few days on the same tank is awesome  :gimp:
I could probably have made it on a tank before the mod but never attempted it, figured it was just too close to call
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drunkencityworker

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Re: Gas tank mod worked!
« Reply #4 on: December 29, 2009, 12:51:33 AM »
Have one laying on my garage floor...its going in soon. Foung it on pirate shipped to my door for 200
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Offline stan98tj

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Re: Gas tank mod worked!
« Reply #5 on: December 31, 2009, 07:05:45 AM »
im gonna be drivin to florida from CT next month..i might just want to do this tank mod. ~150 miles is generally what i can get out of one tank highway driving..would be nice to increase that....does this tank mod give you any extra horsepower or miles per gallon? kidding :)
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Offline stan98tj

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Re: Gas tank mod worked!
« Reply #6 on: December 31, 2009, 07:24:07 AM »
by the way..is there a safe length to cut it at? cutting it too short may cause it to overfill and spill out the gas cap right? can you cut it safely to get to about 20 gallons?
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98 TJ 35"Maxxis Trep.Old Man Emu 2.5""+1"BL,IronMan Fab control arms,4.56gears,Ford 8.8+ARB,Currie/IronMan steering, WARN VR10,HP D30 sleeved+ RCV,Body Armor Rock Rails WISHLIST:TDi.Girlfriend hates it :) If you can read this don't flip me over i dont have any $$ left to fix it

Offline TahoeYJ

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Re: Gas tank mod worked!
« Reply #7 on: December 31, 2009, 12:28:31 PM »
Quote from: stan98tj on December 31, 2009, 07:24:07 AM
by the way..is there a safe length to cut it at? cutting it too short may cause it to overfill and spill out the gas cap right? can you cut it safely to get to about 20 gallons?
Mine overfilled before I did the mod so I can't speak for that... But I cut about 7.25" off mine. And definitely do it before you take your road trip. I'm at 207 on my tripometer and my gauge is reading that there's a little less than half a tank  :twofingers:
Sure is nice having those extra miles per tank. It feels awesome knowing I don't have to stop every 2-2.5 hours for gas  :doggy:
And it's awesome watching your gas gauge stay full for 80+ miles hehe
« Last Edit: December 31, 2009, 12:29:23 PM by TahoeYJ »
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Offline FourbangerYJ

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Re: Gas tank mod worked!
« Reply #8 on: December 31, 2009, 12:37:58 PM »
Quote from: stan98tj on December 31, 2009, 07:24:07 AM
by the way..is there a safe length to cut it at? cutting it too short may cause it to overfill and spill out the gas cap right? can you cut it safely to get to about 20 gallons?

When I did this to my YJ I just took the whole tube out. On your TJ I would cut it as short as I could manage. You might get a bit of spillage but not enough to worry about IMO.
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Offline Jeffy

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Re: Gas tank mod worked!
« Reply #9 on: December 31, 2009, 12:42:28 PM »
Quote from: stan98tj on December 31, 2009, 07:24:07 AM
by the way..is there a safe length to cut it at? cutting it too short may cause it to overfill and spill out the gas cap right? can you cut it safely to get to about 20 gallons?
On a YJ, just pull the tube out.  Back then there was worry that the tank port needed the extra strength but that's not really necessary.
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Offline smashcoast

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Re: Gas tank mod worked!
« Reply #10 on: December 31, 2009, 07:38:20 PM »
On the TJ cut it up against the tank. No overfill problems yet but that was only one fill.
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Offline dwtaylorpdx

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Re: Gas tank mod worked!
« Reply #11 on: December 31, 2009, 09:19:00 PM »
It needs just a little air forthe purge system to work correctly, if the fuel gets to the top of the tank it can suck fuel into the charcoal canister.

Dave
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Offline stan98tj

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Re: Gas tank mod worked!
« Reply #12 on: December 31, 2009, 09:29:16 PM »
Quote from: dwtaylorpdx on December 31, 2009, 09:19:00 PM
It needs just a little air forthe purge system to work correctly, if the fuel gets to the top of the tank it can suck fuel into the charcoal canister.

Dave

could you explain this please?
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98 TJ 35"Maxxis Trep.Old Man Emu 2.5""+1"BL,IronMan Fab control arms,4.56gears,Ford 8.8+ARB,Currie/IronMan steering, WARN VR10,HP D30 sleeved+ RCV,Body Armor Rock Rails WISHLIST:TDi.Girlfriend hates it :) If you can read this don't flip me over i dont have any $$ left to fix it

Offline stan98tj

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Re: Gas tank mod worked!
« Reply #13 on: January 05, 2010, 10:37:38 PM »
how easy is this to do on a TJ? can anyone provide details on this procedure? Open gas cap. place a jack on each side of the tank and loosen the bolts. lower the tank. are there lines that need to be disconnected? once the tank is down can i just reach inside and feel for the line that needs to be cut? is it molded along the right side or left? any details would be appreciated.
stan

i did some research about this and i guess not many TJ owners have done this..there really isnt any info on it. i found this site http://www.jedi.com/obiwan/jeep/15to20gal.html and at the bottom of the page there are a few sentences about the mod for a TJ tank..but they dont include cutting anything, rather moving some type of clip from one position (apparently the 15gallon setting) to the other position (apparently the 20gallon setting). The other thing is, once this mod is done..how well can u trust your guage? will it read true once the 5gallons are consumed?
« Last Edit: January 05, 2010, 10:59:31 PM by stan98tj »
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98 TJ 35"Maxxis Trep.Old Man Emu 2.5""+1"BL,IronMan Fab control arms,4.56gears,Ford 8.8+ARB,Currie/IronMan steering, WARN VR10,HP D30 sleeved+ RCV,Body Armor Rock Rails WISHLIST:TDi.Girlfriend hates it :) If you can read this don't flip me over i dont have any $$ left to fix it

Offline Jeffy

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Re: Gas tank mod worked!
« Reply #14 on: January 05, 2010, 11:18:25 PM »
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