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Old 06-24-2016, 06:21 PM
Gulrok's Avatar
Gulrok Gulrok is offline
Join Date: May 12, 2016
Location: NJ
Posts: 161
Gas Tank Massive Leak?

Hey guys,

So first time completely filling the gas tank - usually I would just put 10-20$ in it but today I was feeling good. - The old hoses were bad so I didn't trust it being full... before.

Anyway - it fills all the way, and ends up leaking out the tank. I had just installed new fill and vent hoses today.

So gas started pouring out of the tank - and it took awhile until it stopped.

I'm wondering if anyone had a similar experience of their gas tank leaking bad.

I checked if the fuel sending unit was leaking, and it wasn't.. and I checked if the new vent /fill hose was leaking but they were not leaking either.
1983 Jeep J10, 8ft bed, Townside - 258cu - Weber 32/36 - Nuttered

So the mechanic said, "it looks like you blew a seal" and I said, "you leave my sexual preferences out of this".
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Old 06-25-2016, 02:37 PM
2ToneBluJ10's Avatar
2ToneBluJ10 2ToneBluJ10 is offline
327 Rambler
Join Date: Feb 16, 2009
Location: Billtown, PA
Posts: 657
Your tank is cracked on top. It's a common problem with the polyethylene (HDPE) tanks on last generation J trucks. I had the same issue.

I have heard of them being repaired by plastic welding polyethylene rod over the crack. It's tough to do but can be done. Fuel fumes must be evacuated before attempting the repair and the tank straps must not be over tightened on the re-install.

Until then don't fill the tank past 3/4.

The few. The proud. The browless.

Somewhere between prissy and pristene
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