924Board.org

[cgalyon]

Well Spring is here and the weather has finally begun to warm up (after a couple of weeks of nothing but rain too). It was a nice day, so I decided to take my Porsche around town for driving. I stopped to get some fuel and went on my way (have about 10gal in the tank now). After driving it into town and back, I got back in to head out to the country. Getting in the car I noticed the rather distinctive smell of gasoline. It was very faint and I figured I'd maybe spilled some on my clothes or something when I stopped for fuel earlier. I went ahead and drove out to my next destination and the smell persisted. It actually got a bit stronger. I monitored my gauges as I went, but they all read normal.

I arrived at my destination and decided to sniff around my car to try to figure out where the smell is coming from. It *appears* to be coming from the trunk area in the right wheel well; or at least that's where it seems to be the strongest. Now my nose isn't exactly a precise instrument, so I cannot be absolutely sure, but the wheel well seems to be the strongest point. As I recall, when we installed the sound system we needed a mounting point and... I wince to say this, but we had to drill in the trunk area. This was about a year ago and we didn't notice any smell of gas when we did that. The smell only just started. Now that the car is parked I'll check for any leaks before I leave again.

Any ideas on where I should begin checking?
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1988 924S Navy Blue - Phone Dials

[Smoothie]

I'd say your sniffer is working just fine - it's not unusual for leaks to develop in the filler area after 20+ years. -Either the large filler hose or smaller vent line (in most cases, I believe it's the smaller line that goes first). Until you get it fixed, you can avoid the smell by filling up with no more than 10 gallons at a time. When the low fuel light comes on, put 10 gallons in.
-And you should notice the smell goes away after a few gallons are used up.
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"..it's made in Germany. You know the Germans always make good stuff."


'82 924T, US version, dark green metallic, 5 speed Audi 016G gearbox

[cgalyon]

Indeed, just as you said when I drove back home tonight the smell was gone and didn't return! How easy is it to replace that hose?
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1988 924S Navy Blue - Phone Dials

[joecitizennn]

I think about every 924S owner has gone through this ordeal at one time or another. There are a couple places gas smells can come from. They are both on the right side of the trunck area. One is the fuel level sending unit hole. Sometimes the gasket can leak. YOu can check this spot by lifting the trunk carpet. There will be a white fiber mat covering the fuel sending unit. Pull it up, with it should come a large black cap. Under this is the sending unit. If it is leaking you will see and smell the evidence.
The other spot is the cluster of fuel hoses over the right wheel well. This is accessed by removing the trunk carpet, and peeling the right wheel well carpet forward to uncover the filler tube cover. It is held in place with a few screws and nuts and nasty butyl material. It is not fun to get off as you will soon see, but underneith is the filler tube and vent hoses. When I had gas smell I found it was simply a loose hose clamp where the rubber hose met the bottom of the filler tube. Tightening it fixed the problem entirely. Not to leave things alone, I later dropped the fuel tank and replaced almost all the hoses. This is no small job, and requires removing the tranny. I had a lift at the time.

[John_AZ]

This topic comes up often.

I have just taken my 2nd tank to be repaired at the stress cracks on the top of the tank by brazing. The repair at a shop will cost between $80 and $100+ to repair both cracks. Here is a link to explain and other links in the first go into great detail.

http://forums.pelicanparts.com/showthread.php?t=442935&highlight=gas+tank+removal

GL
John_AZ
1988 924S 60K + 1987 924S 113K

[v8carreragts]

Because of this thread I looked at my tank. I had it out already so it was easy. It had cracks too, something I wasn't really looking for since I haven't driven the car except for when I drove it home when I bought it. That was about 9 yrs ago so I don't remember smelling anything.

I got some copper sheet and pached it like the one in the Pellican thread.

[img][/img]

I also soldered the round plug because the tank on my first 924 leaked there.

[minnesotamatt]

There is actually a small runoff for surplus fuell to drain out of the gas cap area, I noticed it when i over fueld once and saw extra fuel drain down a small hole and drip onto the grond under the car, that area of the car smelt like gas for a little while