1976-911 Fuel leak in the tunnel.

[911FIZ]

Developed a fuel leak in the plastic fuel line in the tunnel.Need suggestion on the best way to repair. Patch or run a new line ? Looks like a tight area to replace line?
Thanx, Feisal

[Zeke]

I started to answer this question, but it's a tough job. Read my link and then do a search just like this:
terms: "fuel line" "replacement" (with the quotes); user: blank; forum: 911 Tech; Search Titles Only. That should duplicate my search.

Then re-search using Search All Posts

You might be up all night.

[Walt Fricke]

The fuel line in the tunnel shouldn't leak! It is one single piece from in front of the front bulkhead to behind the rear one. For 2/3s of its length it is in the upper left corner of the tunnel, separated from the rest of the tunnel by an L shaped piece of sheet metal which forms a sort of tube through which it runs. Nothing there in the tunnel to wear on it, etc.

I bet some of us would be interested to know where this leak was, and what caused it. That nylone line is really tough, durable stuff.

But you are going to have to pull it out, most likely, unless your leak is luckily by one of the holes in the top of the tunnel where you might get at it - the front one ahead of the shifter, and the rear one where you get at the shift coupler. Though even with small hands this would be difficult.

I caused a leak by welding on the tunnel of my '77. Bad, bad, bad idea without removing the line first (I thought it was on the other side, and didn't check - or even think hard - first).

I found that a double ended barbed brass fitting from the hardware store would work for repairs. I had a spare piece of the tube (which I bet you don't have) left over from some serious body work, so I cut out the bad part, made a replacement segment, and used two of the fittings to rejoin things. Worked just fine.

But that was with the whole shebang out of the car.

You might start looking in Porsche junk yards/used parts places for a replacement line once you find out which of the two is leaking, and how much a new replacement costs.

Tie a stout string onto your line before you pull it out, so that you end up with the string running where the line was. Makes pulling the new one through eversomuch easier.

I can't remember if I was able to do this with the tranny in place or not. But the references Milt gives I bet discuss that.

Not something I'd like to have to do again.