Gas vapors- D90 NAS - Defender Source
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  #1  
Old July 1st, 2011, 08:49 PM
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Jay Goss
'60 Series II Station Wagon
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Gas vapors- D90 NAS

i have strong fuel vapors coming from the rear, passenger wheel well from the are around the gas tank. I can't see any signs of leaks and the fill hose looks to be in good condition. It doesn't makes a difference whether the tank is empty or full- and the vapors are strong enough that you can sometimes smell it while driving with the soft top rolled up ( Badger II w/sides rolled up and back removed). Any ideas as to what could be causing this? The vehicle is a '94 D90 NAS ST. Thanks!
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1960 Series II 88" SW
1994 D90 ST Arles Blue (sold)
1963 SIIa SWB (sold)
1971 SIIa SWB (sold)
2000 Disco SII (sold)
1995 RR Classic SWB TWR edition (sold)
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  #2  
Old July 1st, 2011, 10:51 PM
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Dr. Gonzo
1994 D90 #48
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Quote:
Originally Posted by jaygoss View Post
Any ideas as to what could be causing this?

It's a Defender.

Seriously, I had my entire fuel system rebuilt. New fuel tank, pump, hoses, stainless fuel lines, filter, tubes, etc....

Still get a whiff of gasoline when I walk by the right rear. And yes, sometimes when I'm driving.
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  #3  
Old July 1st, 2011, 11:28 PM
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Rob
92 RRC, 99 DII, 06 LR3, 09 LR2
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Mine smells like gas with the top off. Check all of your gas line connections along the frame rail for leaks though.
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  #4  
Old July 2nd, 2011, 02:09 AM
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Jay Goss
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Thanks guys- will check the lines but good to hear it's most likely a normal thing for the beast.
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1960 Series II 88" SW
1994 D90 ST Arles Blue (sold)
1963 SIIa SWB (sold)
1971 SIIa SWB (sold)
2000 Disco SII (sold)
1995 RR Classic SWB TWR edition (sold)
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  #5  
Old July 11th, 2011, 04:29 PM
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Trenton Smith
1997 D90
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Had the same problem. Smelled even stronger when the tank was full (even inside) Dropped the tank and found small spider cracks around the fuel pump mount. A couple coats of epoxy made everything better
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  #6  
Old July 11th, 2011, 05:38 PM
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John Crouse
'93 NAS D110 (#8) / '61 Series II
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Not sure if it's as big a deal on the 90s, but on my 110 the overflow tank looks like swiss cheese. The part of course is unobtanium. I avoid filling the tank all the way up.
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Old July 11th, 2011, 09:26 PM
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Jay Goss
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Quote:
Originally Posted by Defender90_218 View Post
Had the same problem. Smelled even stronger when the tank was full (even inside) Dropped the tank and found small spider cracks around the fuel pump mount. A couple coats of epoxy made everything better

Quote:
Originally Posted by 61rover View Post
Not sure if it's as big a deal on the 90s, but on my 110 the overflow tank looks like swiss cheese. The part of course is unobtanium. I avoid filling the tank all the way up.
thanks for the feedback, guys. I'll check the tank next time I'm in there- and not sure if it has an overflow tank or not...but I'll look into that too.
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1960 Series II 88" SW
1994 D90 ST Arles Blue (sold)
1963 SIIa SWB (sold)
1971 SIIa SWB (sold)
2000 Disco SII (sold)
1995 RR Classic SWB TWR edition (sold)
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  #8  
Old July 12th, 2011, 09:25 AM
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Nick Vogel
1997 D-90 / 2012 LR4
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Mine was the main vent tube going to the filler assembly. Once I dropped the tank, I swapped out all the rubber lines and presto, no smell.

Funny enough the day I bought the truck, the tank was on empty. I was a bit confused as why I would pay good money and not get a full tank of gas. Went to the gas station, and watched the gas pour out of cracked filling tube.
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  #9  
Old July 12th, 2011, 10:33 AM
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Jay Goss
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Quote:
Originally Posted by 97-D90-736 View Post
Mine was the main vent tube going to the filler assembly. Once I dropped the tank, I swapped out all the rubber lines and presto, no smell.

Funny enough the day I bought the truck, the tank was on empty. I was a bit confused as why I would pay good money and not get a full tank of gas. Went to the gas station, and watched the gas pour out of cracked filling tube.
Bastards. When I get the time I guess I'll drop the tank- from the replies so far it sounds like anything on, around or in the immediate vicinity of the tank may be at fault...either that or it's normal for a Defender to smell gassy- and cancer/imminent explosion are just some of the bonuses of Rover ownership!
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1960 Series II 88" SW
1994 D90 ST Arles Blue (sold)
1963 SIIa SWB (sold)
1971 SIIa SWB (sold)
2000 Disco SII (sold)
1995 RR Classic SWB TWR edition (sold)
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  #10  
Old July 12th, 2011, 11:00 AM
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Bill Lewis
1995 White SW 339/500
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I have had mine out several times and can do it in about an hour. The hardest is if it is the first time, the bolts suck to get out. well that and emptying the tank.

FWIW, I have replaced everything on my fuel tank and still have that smell sometimes. The odd thing to me is that there is that smell, and yet I can have pressure when I open the cap.
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