96 XJ leaking from top of new tank

Dest · May 4, 2008

I just replaced my gas tank and fuel pump, when I went to fill it fuel started spilling out from the top of the tank, what could be causing this? Thanks.

JEFF · May 4, 2008

Plastic or steel tank?

Dest · May 4, 2008

Steel, brand new too.

JEFF · May 4, 2008

Sorry I didn't see the "96" in your title....it's probably steel. assuming you put all the rollover valves and seal for the fuel pumb back in correctly. and the fill tube is hooked back up. I got a new tank from Quadratech and one of the welds in the bottom of the tank leaked gas, if the tank is brand new? Id start checking around all the spot welds and fittings on the tank.

Dest · May 4, 2008

I didn't do it myself, but the guys that did usually do good work, it doesn't look like its coming from the side where the fuel pump is, as the top of the tank is wet and you can see where it ran down sort of around the pump. Are there any lines up there that could be leaking?

JEFF · May 4, 2008

There are two rollover valves that fit into rubber gromits they are located on the very top of the tank.

Dest · May 4, 2008

Thanks for all your help, can they be replaced? Also, how easily would these valves give in under pressure? Cause even after the main spill happened I was above F on the gauge, so I'm wondering if thats what happened.

JEFF · May 4, 2008

Yes but the tank will need to be dropped back out.

Dest · May 4, 2008

Thanks, is there any other place that would possibly cause gas to leak when its full? Does the fill tube run over it? Also is there any place to find good diagrams of how the parts go together like they have at the dealership? I'm interested in looking at them.

96 XJ leaking from top of new tank

Dest

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JEFF

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Dest

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Dest

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