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| Moderated by: Greg Fletcher |
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| Gas fumes in the trunk | Rate Topic |
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| Posted: 10-21-2011 12:31 pm |
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1st Post |
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MikeIsotech Member 
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Hi all I've seen a post or two about gas fumes in the trunk of Healeys. I haven't yet heard that anyone has managed to solve the mystery. I've got a slight gas smell in my trunk and would like to know if I've got a problem. The car has been recently fully restored so I know that the tank, hoses, filter, solid pipes etc are all ok. I've checked all of the jubilee clips and they're all tight. My suspicion is that it could be the sender unit seal. I also see that there's a small breather on the fuel pump - could that cause it? All help, suggestions or comment gratefully received! Mike
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| Posted: 10-21-2011 04:52 pm |
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2nd Post |
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Greg Fletcher Administrator 
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Wouldn't we all like to know! I was very careful about fixing everything when I restored my car, remanufactured tank, new seals all around, basically everything removed, resealed, replaced including the sending unit and fuel pump (I've experimented with different pumps too, I don't think that the fuel pump is the real problem). The fuel smell remains, grrr. My theory now centers around the way the Federal fuel tank recovery system draws in the vapors from the front of the car and that the recovery pipe itself is part if the problem, but not the actual cause. Does your JH fuel tank have a vapor recovery system at the top?
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| Posted: 10-21-2011 10:22 pm |
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3rd Post |
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MikeIsotech Member
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Similar situation here - everything has been replaced, including fitting a stainless tank from a wreck. The tank is great quality and doesn't leak. All of the rubber hoses and metal pipes have been changed as part of the restoration. A new, old stock, electronic SU pump was also fitted. All new jubilee clips which are all tight. The fuel system is in great condition and is mostly new. We don't have the Federal recovery system on Healey's over here. They have a breather pipe which vents through a sealed hole in the trunk floor. I'm pretty sure this isn't the cause though...
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| Posted: 06-14-2012 04:46 pm |
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4th Post |
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dthewlis Member
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Same problem here with a twist. Two years ago we pulled the gas tank and had it rebuilt by Moyer's. Replaced the fuel pump and virtually everything else. Absolutely tight, no gas smell -- for about a year. Now it's intermittent and we cannot find anything to point at. About ready to pull the tank and reinstall from the ground up.
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| Posted: 06-14-2012 07:16 pm |
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5th Post |
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jcdean Member
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Does it happen when the tank is full or does it matter? I found a hose clamp that had pulled through the fill tube just enough that a bit of vigorous driving when just topped of caused the same issues. I even fixed after a year or so.
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| Posted: 06-15-2012 12:53 pm |
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6th Post |
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Brett Gibson JH5 20497 Member
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My thoughts on this issue, assuming the piping and seal etc are all correct there is a vent hose that goes thru the trunk floor and is supposed to go thru a box section then exit under the car, if this hose just goes into the box section and not out then that could be one point. Another point could be the hose is were it is supposed to go and the vapors are venting just fine but the rear trunk floor were it meets the rear valance (light panel) is supposed to be caulked and seam sealed, if your caulking was anything like mine it is dried out and falling off, maybe just maybe the fumes are finding there way up thru this gap. Brett
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