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Fuel Tank Leaking From Top of Tank

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Old Mar 18, 2020 | 07:54 AM
  #16  
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Originally Posted by Morat
That's a great link - and I wish I'd known about the Pump Spanner before I swapped two pumps with my bare hands! I swear I nearly broke my thumbs....
I don't do a thing to my Jeep without researching it first.
I don't care how stupid or simple it may be.
First time a changed a serpentine belt on a Jeep I Goolged it.
Now I had a pretty good idea of what to do. But some guy made a
decent 15 minute video. Confirmed what I thought but he mentioned what size
everything was. Was able to walk out with the right size sockets and wrenches the first time. LOL.
I don't know about you guys but I eyeball a bolt, bring out 3 wrenches, sockets, whatever in both metric and sae,
and really hate it when I have to go back to my tool box cause I was wrong. LOL.
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Old Mar 21, 2020 | 07:30 PM
  #17  
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Alright so I got the tank dropped yesterday. Since it was out, I decided to install a new sending unit (with o-ring) from rockauto because it was convenient to do so. When the tank was out, I didn't see any signs of a breached gas tank. The lock ring seemed a little loose, it took one small hit with a large screw driver and hammer to come off by hand. There was also no signs of any gas lines or tubes broken or leaking. I installed the sending unit and made sure the lock ring was tight. Once I got the tank installed, I filled it to a little less than 1/2 way full. While filling, it was not leaking. I started the Jeep and let it idle in my driveway for a few minutes while I inspected all the lines and the tank. Then I decided to drive a round my neighborhood stopping every few blocks to check for leaks (I didn't see any). I then proceeded to go to the gas station to fill up. Again, while filling up, I crawled underneath the Jeep to check for leaks and I saw nothing. The Jeep took almost 12 gallons which is about how much it should've taken. For good measure, I looked underneath one more time before I left and I saw gas just spewing form the top of the tank. Not sure why it's still leaking. I'm thinking about getting a new o-ring again and new lock ring. Any other suggestions? Any other Ideas as to why it's still leaking? Since I have to drop the tank again, should I consider doing a fuel tank upgrade?

Thanks, Justin
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Old Mar 22, 2020 | 06:23 PM
  #18  
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Check the fill neck really good, could be cracked or a hole in it somewhere
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Old Mar 23, 2020 | 03:24 AM
  #19  
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Originally Posted by Justin Gregory Martinez
Any other suggestions? Any other Ideas as to why it's still leaking? Since I have to drop the tank again, should I consider doing a fuel tank upgrade?
Thanks, Justin
Cant think of any alternative but drop it again, check for leaks by sealing neck and sloshing tank around, check filler hose etc

Nasty job, but you will be much quicker second time around

check real good, doing it a 3rd time, probably cause a lot of cuss words
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Old Mar 25, 2020 | 01:08 PM
  #20  
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https://youtu.be/iI-fwdjYRE . Here is my video on how I emptied my gas tank... if you're going to empty it and drop it be prepared that you will need new straps and bolts more likely... And a Sawzall or Cutter to cut the bolts if they're Rusty... once you cut them they're easy to pull out because they have a slot they go into. And be prepared to change the fuel pump at the same time because, why the hell not? Even if you can't afford a new fuel pump right now and they're going to put the old one back in with a new gasket... be sure to take the old one completely out and wipe out the inside of the gas tank... you will have a sludge in the bottom of it that has formed over the years especially if your gasket has been eroding..... you can use the old gas to rinse it out, as you're wiping and cleaning it with paper towels by sticking your arm down the fuel pump hole.... all of that being said, it really wasn't that bad of a job, just time-consuming... plan on having a whole day for the project... the siphoning of the gas is what takes the longest... no, you can't use the Harbor Freight siphon pump to do it faster
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Old Mar 25, 2020 | 01:11 PM
  #21  
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https://youtu.be/iI-fwdjYRE . Here is my video on how I emptied my gas tank... if you're going to empty it and drop it be prepared that you will need new straps and bolts more likely... And a Sawzall or Cutter to cut the bolts if they're Rusty... once you cut them they're easy to pull out because they have a slot they go into. And be prepared to change the fuel pump at the same time because, why the hell not? Even if you can't afford a new fuel pump right now and they're going to put the old one back in with a new gasket... be sure to take the old one completely out and wipe out the inside of the gas tank... you will have a sludge in the bottom of it that has formed over the years especially if your gasket has been eroding..... you can use the old gas to rinse it out, as you're wiping and cleaning it with paper towels by sticking your arm down the fuel pump hole.... all of that being said, it really wasn't that bad of a job, just time-consuming... plan on having a whole day for the project... the siphoning of the gas is what takes the longest... no, you can't use the Harbor Freight siphon pump to do it faster
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Old Mar 25, 2020 | 01:11 PM
  #22  
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Old Mar 25, 2020 | 01:12 PM
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Sorry, the link didnt post right, here is the video. Good luck bro.
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