Fuel leak

[88carrera]

I just returned from a drive and was putting oil in the car when I was hit with the overwhelming smell of gasoline.

Inspection revealed gasoline at the bottom of the #5 intake runner and fan shroud.

I thought maybe the o-ring on the fuel injector was bad, but turning the injector gave me a snug fit in the fuel rail.

There is a hybrid rubber/metal fuel hose and I'm thinking that is the culprit. In the diagram you see a coil that wraps around the rubber part on the right hand side so i can't inspect it. The left hand side reveals the rubber is cracking.

Anyone have any other ideas on leak possibilities?

http://www.pelicanparts.com/catalog/images/fuel_injection/new_images/fi_1986-89_1-07-05-9.jpg

[Rick V]

There is alot going on with that line and the rest looks pretty solid. (not high leak risk)
Let the car cool down and clean the area, have someone start the car and you look at the suspected area. It should manifest itself quickly. If you have any doubt about the integrity of your plug wires or cap don't try my idea.
Being in the supply line you may be able to make it leak by cycling the key, no rnning required.

[88carrera]

Thanks Rick I'll give your suggestion a try.

If it is that line I just looked up the price $350--ouch.

[Rick V]

You might be able to take the line off the car and have one made at a Hydrolic shop. They will need the ends. If you go that route, make sure they know it is for gas, and repeat it.
I hope you just lost a seal in the end.
Good luck

[OldTee]

Go buy a new one. Inspect fuel hoses regularly. When refreshing the engine it is a good idea to just replace old hoses. The down side is a few bucks cost. The real down side is a fire which can introduce you the how the insurance industry screws us.'
ARF

[cmartin]

That hose is a fairly common trouble spot on 3.2's. The stock piece is spendy as you found. I've read several guys making a new line with -6 hose and AN fittings, although it will take some piecing together.

x2 on the hydolic shop as another alternative. A good one should be able to build you one good as new.

[88carrera]

I think I will use my moto-tool to remove the factory crimp. Then put on some new stainless fuel injection hose

http://injector.com/images/products/aeroquip-hose-200.jpg


and use fuel injection clamps.

http://www.ultimategarage.com/ABAMini1.jpg

[MatP]

Just to reiterate what Chris said - this is a fairly common failure of 3.2 Carreras and has been the source of many nasty fires. This is not a problem you want to take lightly. A search on Pelican will yield some DIY solutions using AN fittings that won't cost too much (as well as many pics of charred Carreras).

[88carrera]

Just to reiterate what Chris said - this is a fairly common failure of 3.2 Carreras and has been the source of many nasty fires. This is not a problem you want to take lightly. A search on Pelican will yield some DIY solutions using AN fittings that won't cost too much (as well as many pics of charred Carreras).

I was prepared to use the stock metal fittings but with new rubber and new fuel injection clamps. Are you saying the fuel injection clamps are not sufficient?

[88carrera]

Fuel lines have been replaced...see here http://forums.pelicanparts.com/showthread.php?threadid=310529

[Rick V]

Good deal, looks like you had alot of fun. Makes you want to work on cars for a living..............doesn't it? :)

[roundel]

Smelled fuel in my car yesterday and found a wet hose under/in front of the Mass Air Flow meter. :bang:

[Trak Ratt]

Smelled fuel in my car yesterday and found a wet hose under/in front of the Mass Air Flow meter. :bang:
Good you found it before you saw smoke boy-o!! Several others Carrera's have burnt to the ground because of fuel rail and line leeks!

[hoophead]

I replaced all of mine with a set from Len @ Auto Sport Engineering (see this post: http://forums.pelicanparts.com/porsche-911-technical-forum/352242-3-2-fuel-line-needed.html ) when I rebuilt my 3.2. Cost was around $150 if I remember correctly, with core trade-in :)

[roundel]

I replaced all of mine with a set from Len @ Auto Sport Engineering (see this post: http://forums.pelicanparts.com/porsche-911-technical-forum/352242-3-2-fuel-line-needed.html ) when I rebuilt my 3.2. Cost was around $150 if I remember correctly, with core trade-in :)

Good info. I have read that the OEM Porsche part has actually dropped in price from the $500 range to the $350 range. :shock: How often do prices drop? And if one uses shrink wrap around much of the SS line, its ability to cut into adjacent stuff is eliminated.