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ssuesens · 04-09-2014, 05:42 PM

Recently acquired a '71 C10 Custom with the gas tank behind the seat. There is a relatively strong gasoline odor in the cab which I obviously want to get fixed IMMEDIATELY! Upon inspection I found old, tired out silicone caulking between the filler neck and the tank. I believe this is the source of the vapor leak. Aside from removing tank and filler neck to have it professionally soldered or braised, it there a product (better than silicone) which I could use to seal the area? I'm thinking something similar to JBWeld or MarineTex but must not be gas permeable.

Thanks!!!

04-09-2014, 05:42 PM	#1
ssuesens Registered User Join Date: Nov 2013 Location: Keller, TX (DFW) Posts: 45	Gas fumes in cab Recently acquired a '71 C10 Custom with the gas tank behind the seat. There is a relatively strong gasoline odor in the cab which I obviously want to get fixed IMMEDIATELY! Upon inspection I found old, tired out silicone caulking between the filler neck and the tank. I believe this is the source of the vapor leak. Aside from removing tank and filler neck to have it professionally soldered or braised, it there a product (better than silicone) which I could use to seal the area? I'm thinking something similar to JBWeld or MarineTex but must not be gas permeable. Thanks!!!