Adamant1971

Changed out my fuel lines with GB lines today and removed the FI hose kit I had installed during the winter of 2014. I was surprised at how the U hose and FI hose had deteriorated.

Glen McCartney

Wow, my 18 year old lines looked like that when I changed mine a few years ago!

The Deputy

Where did you get that hose from? That's a mighty poor performance.

Brian.

Adamant1971

The U hose was a Porsche part and the rest of the hose was Rogers FI hose and clamp kit.

Chalkboss

I had the Porsche u hose on mine for a year and it sprang a leak. Looked terrible like yours upon removal. I went with Greg's lines and could not be happier. Those things will outlive me by a very long margin.

ammonman

The kit from Roger is a great short term alternative to NLA lines from Porsche but is only a short term option IMHO. I had them on for a few years before I stepped up and got Greg's lifetime set. I made sure to remove and inspect the hoses from Roger every year and when they started looking as if they had seen better days I got Greg's kit and couldn't be happier on both accounts. As long as you take them both for what they are and act accordingly you will come out roses.

Mike

Simon928

Yikes! Seeing stuff like that gives me the *******. I replaced my fuel hoses in my new (to me) car with two Porsche hoses for the ones that were still in stock and two Greg Brown hoses for the NLA ones. I figured that if the original Porsche hoses lasted 30 years I should be okay, but seeing your pics makes me rethink that. I know that the rubber sheath on the Porsche hoses has little to do with preventing the fuel from coming out, but seeing yours deteriorate that fast it can't help but give me pause. I guess this is as good a reminder as any to not take the condition of your fuel lines for granted.

Imo000

What brand are the FI hose from Roger? Any branding on them?

Got mine locally at the parts store. Has been on there for 10 years+, with a FMU that takes the pressure up to near 100psi under full boost and they held up. Will have a closer look at them in the next few days to see what brand and shape they are in.

BIMMERMIKE

Now I will look at my fuel hoses.
That is strange wear

ROG100

Hi Adam,
Correct me if I am wrong - your pictures show the hose from the regulator to console (early 87) and the U hose. If I am correct both those hoses are Porsche hoses - I would cut the U from the first hose.
For some reason Porsche stopped molding the hose and started wrapping it with terrible results as can be seen.
A lot were returned and the new hoses now supplied are much improved.
For the record I stopped selling the kits a few years ago. However the kit I took of my GTS after 8 to 10 years was in near perfect condition.
I sell either the correct Porsche hoses were available and/or the GB hoses.
HOWEVER - I do not care whose hose you use you should visually check them every 12 months.

Adamant1971

Hey Roger, the pics are of the U hose and the small hose that sits right behind the maf and connects the FPR's. Those receive a lot of heat and are toasted. The other hoses were fine.

I still need to change the early 87 hose (cooler to engine). That line was done with your kit as well, but the hose looks ok. Just waiting for my tennis elbow to get better before I install Greg's line.

jcorenman

We got us a terminology issue here. There is only one FPR, #4 in the drawing below. What is usually called the "U-shaped hose" is #7, which is the one that sits under the MAF and connects the FPR to the damper (#3 here). It is a simple "U", and while there were a couple of versions it was never clamped by the factory. Some folks have used a pre-formed "U" clamped to original fittings, but that is a compromise-- Greg's U-hose is the right solution there.

The first hose you show looks like the early return line as Roger said-- #10 below. If that's not it, then what is it?

There's been a few different return-line versions from '87-95. Early S4 had a FPR with a hose nipple and the return line clamped that (as shown below). That is not the best choice, and Greg has recommended replacing the FPR with a later one with a threaded return fitting and using the appropriate hose. If the return line gets kinked or plugged then that hose can see full fuel-pump pressure.

Adamant1971

Yes it's the return line, but much shorter than your #10 above. The other is #7.

So these are two OEM lines then. Sorry for any confusion.

ROG100

FPR to Console (early 87) uses 928 110 359 09. First picture in the original post.
The U hose was made from the same hose.

Early 87 uses the 928 110 359 09 or you can change the FPR to the later 87.5 to 95 unit and the GB hose #5C - We stock both.

Adamant1971

Cool so then I just need get a later FPR and use Gregs line that I have (last one that needs to be installed). As I don't trust that return line from Porsche. Will buzz you for that. Cheers