Dustyboy1982

I bought a new fuel tank and sending unit for my 91 xj with a 4.0. I keep having problems with the seal leaking around it. I've put it together 3 times and it lasts for a bit and then it starts leaking again, almost like it's shifting. I get the retaining ring tight every time but just looking for tips, possibly a epoxy or silicone type to help it seal completely. I'd weld it shut at this point lol.

93_xjcherokee

Have you made sure the retaining ring is tight all the way around? And new rubber o ring? I've never ran into this problem. And welcome to the forum

Dustyboy1982

Yes I believe the I ring is tight, I'll try to get a new O ring set and try again.

DFlintstone

Yea, try a different O ring. Should fit tight, like you were lucky to even get it started....

Almost any sealant on any O ring is a bad idea. Tranny fluid......

93_xjcherokee

What I do is get one part of the ring strarted and go all the way around with a good amount of pressure with a big flat screwdriver

Dustyboy1982

Thank you guys, I ordered the new o ring today, I'll let you know what results I have, just want it fixed, getting very annoying.

67 GMC

Usually, the new o-ring is so big that you can get the lock ring to seat properly. I took the lock ring and ground down the "teeth" so that they are a lot sharper and fit under the tabs. That's the hardest part of the job in my opinion. Make sure you put the sender in the right way.