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Struggling with a fuel smell after a drive? #2549931
09/14/18 12:30 PM
09/14/18 12:30 PM
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steved033 Offline OP
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After a year or two of chasing a terrible fuel smell after a drive (like, the next day, and for days afterward), I found a tidbit on the FAST EFI forum about a guy who discovered that Summit Braided hose is vapor permeable, and not really compatible with Ethanol in fuels (it says compatible with gasoline on their site, but not ethanol specifically as compatibility), and that for street fuel, you need to run Teflon.

The summit racing PTFE hose lists "Ethanol" specifically as a compatibility.

I changed mine out, and the smell is gone.

I can take the removed hoses and smell the outside of the braid, and they smell like gas still.

Gasoline doesn't mean pump gas, apparently.

sjd
440/comp 268/fast EFI/440source heads


'71 GTX, Tawny Gold, Ember Gold interior.

Pics: 1971 GTX
Re: Struggling with a fuel smell after a drive? [Re: steved033] #2550036
09/14/18 05:29 PM
09/14/18 05:29 PM
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RapidRobert Offline
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Quote:
After a year or two of chasing a terrible fuel smell after a drive (like, the next day, and for days afterward), I found a tidbit on the FAST EFI forum about a guy who discovered that Summit Braided hose is vapor permeable, and not really compatible with Ethanol in fuels (it says compatible with gasoline on their site, but not ethanol specifically as compatibility), and that for street fuel, you need to run Teflon.

I changed mine out, and the smell is gone.

Good to hear. I learn from everyone I have contact with (good or bad!) especially other mechanics. It always makes me shake my head when I see the commercials touting the benefits of E10 (I cant remember the 3 bennies (iirc) at the moment & there might be, but it sure causes us alot of grief.


live every 24 hour block of time like it's your last day on earth
Re: Struggling with a fuel smell after a drive? [Re: steved033] #2550051
09/14/18 06:18 PM
09/14/18 06:18 PM
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mopars4ever Online content
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When I first got my car years ago the PO had that type of hose the length of the car. I was trying to find out why I always smelled gas when I didn`t see any leaks. When I got a sniff of the hose I could where the smell was coming from. The hose reeked of gas.

Re: Struggling with a fuel smell after a drive? [Re: steved033] #2550079
09/14/18 08:00 PM
09/14/18 08:00 PM
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Supercuda Offline
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EFI rated rubber hose is fine with E10 and cheaper than teflon.

It should have SAE 30R9 on the hose itself.

Specs https://tinyurl.com/yamc3pu5


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Re: Struggling with a fuel smell after a drive? [Re: mopars4ever] #2550411
09/15/18 08:00 PM
09/15/18 08:00 PM
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steved033 Offline OP
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Originally Posted By mopars4ever
When I first got my car years ago the PO had that type of hose the length of the car. I was trying to find out why I always smelled gas when I didn`t see any leaks. When I got a sniff of the hose I could where the smell was coming from. The hose reeked of gas.


Exactly the mistake I made. He probably dumped the car because he couldn't figure it out. even now, the coiled up braid smells like gas.

sjd


'71 GTX, Tawny Gold, Ember Gold interior.

Pics: 1971 GTX






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