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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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Joined: Jun 2009
Posts: 101 GA
steved033
OP
member
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OP
member
Joined: Jun 2009
Posts: 101
GA
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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
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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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Joined: Nov 2003
Posts: 36,040 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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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.
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
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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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Joined: Sep 2007
Posts: 14,889 up yours
Supercuda
About to go away
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About to go away
Joined: Sep 2007
Posts: 14,889
up yours
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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
They say there are no such thing as a stupid question. They say there is always the exception that proves the rule. Don't be the exception.
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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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Joined: Jun 2009
Posts: 101 GA
steved033
OP
member
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OP
member
Joined: Jun 2009
Posts: 101
GA
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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. 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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