gas smell and leaking on top

[t.sandin@comcast.net]

I recently filled my gas tank and i am smelling gas now. i looked under the carpet and under the boards at the top of the gas tank and it is showing gas around the sealed lip and where the leads are. I am wondering if i just overfilled it, or is it expanding and leaking out the top seal? i wipped it clean and came back 24hrs later to see more gas seeping out from the top but i cannot tell where its coming from. live in a cool climate. Any ideas? included a pic

[Son of Marty]

From the picture it looks like the hose that's used to block off the fuel outlet on the sender is shot and it's leaking, there's also a O-ring under the sender that maybe leaking also but that hose is soaking wet. All that fabric covered hose is original and you should replace it with new fuel injection rated hose.

Edited March 14 by Son of Marty

[Mike Self]

2 hours ago, Son of Marty said:

it looks like the hose that's used to block off the fuel outlet on the sender is shot and it's leaking

+1.  That's a chunk of the OEM cloth-covered hose--the rubber cracks and becomes porous but you can't see the deterioration as it's hidden by the cloth--until it gets saturated like in your picture.  Replace with a short length of modern rubber hose and make sure it's tightly plugged, or even better, get a proper cap for that line and clamp it in place.

 

Then if it still leaks, replace the rubber o-ring that retains the sender assembly.  Get the factory part, not an o-ring from the hardware store, and grease it a little with some silicone spray or grease so it doesn't bunch up when you twist the sender to lock it in place.

 

mike

 

PS--make sure you don't have other sections of that cloth covered hose elsewhere in your fuel system...

 

mike

[Son of Marty]

Here's a little know fact ( channel your best Cliff Clayborn voice )  about the cloth covered hose VS internal reinforced hose. The internal reinforced hose invented, by Gates Rubber, in the late 30's, in WW2 the manufacturing process was classified by the US. that lead us to be able to develop a true high pressure hydraulic systems used in a lot of systems on planes ships tanks etc. the machines used to knit the reinforcing fabric into the hot rubber extrusions of rubber tubes  while it remained hot enough to bond with the outer layer was quite a feat at that time, and Germany was rebuilding after the war was unable to duplicate it in the 60 and 70's.

Just say'n.

Edited March 14 by Son of Marty

[Howardpowered]

ill guess an overfill has the stub hose leaking at a crack at the end of the bolt that's been rather rudely shoved up in there.

 

consume some fuel and it should stop pooling, but as others have noted those hoses be stanky.

[jp5Touring]

Couple of hose clamps wouldn't hurt on that short hose after you replace the cloth covered hose. 

[jimk]

There shouldn't be any fuel leaking no matter how much fuel is in the tank.

[t.sandin@comcast.net]

thanks for all the info. i will replace hose with new and put clamp on as well.