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My wife has complained for sometime now about the gasoline smell in the garage, so I have been trying to find a cure and I think I have!
Both of my cars have a 1/4" ID vent hose from the tank top exiting under the car.
I found a Dorman #47149 vacuum check valve in the Help Section at my parts store. It's very small and fits the 1/4" line.
It draws enough air while driving and doesn't restrict fuel flow.
The Smell is Gone!
good idea what happens with contraction, as fuel dose both???
Expandtion could flood carb I suppose, contraction just sucks air thru check valve. I need suggestions on a small charcoal canister, maybe for a motorcycle.Quote:
Originally Posted by cffisher
Thanks!
Good fix I thought you were going to say[light a match].
WD-40 always works for me
Contraction is not your problem, as it's sucking air into the tank to replace fuel burned, or due to decreasing vapor pressure due to cooling. Expansion (or a leak) is what causes the fumes. That vent has to work both ways, so a check valve may seem to fix your problem but is going to pressurize your tank with increasing vapor pressures, especially in the summer. Dave (IC2) already shared his experience in your earlier post, including the fact that the charcoal canister doesn't work for a vented system, and his solution, which was a coil of tubing in the vent routing. Seems to me you have the answer, or at least one that worked for Dave.Quote:
Originally Posted by curmudgeon
I have a coil of tubing in my vent line just above my tank, that doesn't seem to help. Someone on the H.A.M.B. suggested attaching a fuel filter w/1/4" fittings to the vent line so the tank could breath. That seems to help, but it's not the cure all.Quote:
Originally Posted by rspears
It was also suggested to run a vent line as high above the tank as I could and create a 180 then back down, kind of like a upside down J trap. I don't see how that would make any difference.
Again, the fuel filter on the end of the vent line does seem to help!
ANY OTHER IDEAS?????
What type of line runs from the tank to the engine? Some braided tubing tends to "breathe" a bit if it doesn't have the right core materials. I think that's where the odor comes from on mine, using the Russel Pro-Classic hose.Quote:
Originally Posted by curmudgeon
Another thought is that the fumes may be from your engine. If your float level is high you might be dribbling raw fuel into the intake, which will then vaporize and create a strong odor. Any small leak at the carb can cause the odor, too.
Baring any leaks as "spears" mentioned above, try an opened bag of charcoal briquets, the briquets will absorb most odors (to a tolerable level at least).
WHAT!! I'm sorry, I don't get it.Quote:
Originally Posted by Babyburr
May have to look for one that fits your application better, but how about a fuel tank vent valve.
Chevy Tahoe Fuel Tank Vent Valve - AM Autoparts
Isn't that a simple rollover check valve, to prevent fuel leaking from the vent if inverted?Quote:
Originally Posted by pro70z28
Thanks Roger for bringing Dave's(IC2) thread up. I went back to re-read it and found I missed the last 2 pages!Quote:
Originally Posted by rspears
Lots of good info in that thread!!
Joe
Attachment 56710Attachment 56711Attachment 56712Attachment 56713Attachment 56714OK! Here is what I have and have done today! Hope the hell it works! I used a puke tank and screened the lines inside and filled it with activated charcoal and attached it to a fuel filter and then on to the curley-q on top of the tank!
Might want to attach a data plate next to the coil, EVERYONE is going to ask about it.
I had to come off the tank there, so I figured I'd go for the Old Time Still Look!Quote:
Originally Posted by firebird77clone
The coil should work by it self if partialy filled with any liquid it would just move back and forth in tube
I like the coil! Hope it works for you.
Just tell'em it's your still! LOL..
OK! This was this mornings project. Still smelled gas, off came the canister.
I came off the curley-q with 3 loops as high as and behind the tank.
Then I dropped through the floor and attached a fuel filter with 1/4"
fittings then from the filter a 3' line terminating in the frame rail.
This afternoon it was 84 degrees---No smell!
I wouldn't tell your wife you have got rid of the smelly garage.
Lets face it the smelliness is a good reason for her to stay out of your play room
Last guy with this problem ended up with a mooneyes blower cover.
