911 sc green fuel line

[scott.k]

Hello,
There are two green aluminum fuel lines that have a connect under the transmission mount and go into the engine compartment. I need a replacement fuel line for the one that goes... (well im not exactly sure where), the one that screws to the black flexible line and NOT the one that goes to the accumulator. Does anyone know where a replacement can be found. Not looking for OEM. Any line that works. I have the two end female screw fittings. I know that one can buy line and a tube flare tool from a site like Eastwood to make a replacement line but its just one line that needs to be replaced so its not totally practical.
Links would be greatly appreciated.
Thanks
Scott

[James Brown]

That would be the return line and i think there NLA. So you must make your own or pay for one from the for sale board. But making one isn't that hard.

[scott.k]

Ok, thanks a lot. Sorry for my lack of abbreviation knowledge, but does NLA=No Longer Available?
thanks
Scott

[jmitro]

correct.

as it turns out, I have both of these green hard lines. feed and return. I'll send you a pm.

the flare fittings from Eastwood probably won't work as the angle and curvature are different than Porsche fuel line flares

[scott.k]

Does anyone know the porsche part number for a 1980 911 sc fuel return line?
Thanks
Scott

[scott.k]

If I were to buy braided stainless line, is there a way that I could attach the female end fittings from the return line to the "cut to length" steel line. What pieces would I need to do this? ... Clamps? Links would be great help
thanks

[BoxsterGT]

I can supply the fittings you need.......



or make up a replacement hose in Metric plain rubber or Metric braided SS.

I also have other unique fittings such as banjos...........



and 180's..........



Please note these are Metric fittings, only compatible w metric hose, NOT Aeroquip AN hose. They are usually crimped, but for a low press return line you can use the correct Norma hose clamps.

Questions, please email only.

Len at autosportenginering.com

[jmitro]

the fittings above look nice and should work great.

for me, I cut off the crimped section, removed the worn out OEM fuel hose, and inserted the OEM metal fittings from the soft fuel lines onto new generic rubber high pressure fuel line. It was a hassle, but quite a bit cheaper than buying brand new Porsche fuel lines.

I did this all the way from the fuel pump to the accumulator and back to the pump.

[boyt911sc]

Originally Posted by scott.k

If I were to buy braided stainless line, is there a way that I could attach the female end fittings from the return line to the "cut to length" steel line. What pieces would I need to do this? ... Clamps? Links would be great help
thanks

Scott,

You could buy the stainless braided lines but you would still need the correct adaptors. If I were in your shoes, I would get them made by Len or go visit your local hydraulic shops. These are standard and common metric fittings.

Tony

[scott.k]

Originally Posted by boyt911sc

Scott,

You could buy the stainless braided lines but you would still need the correct adaptors. If I were in your shoes, I would get them made by Len or go visit your local hydraulic shops. These are standard and common metric fittings.

Tony

Alright thanks for the advice.
Do I have to run metric line, if so do you know what size?
Thanks

[boyt911sc]

Originally Posted by scott.k

Alright thanks for the advice.
Do I have to run metric line, if so do you know what size?
Thanks

Scott,

There are several sizes carried by local auto supplies that would fit as replacement fuel lines. Just make sure that they are 'fuel injection lines'. I believe I used a 1/4" ID for the delivery/return lines. The fuel line size will be dictated by the fitting size you'll use as replacement.

Visit your local VW dealer and inquire about metric fuel injected lines (14 mm OD). It costs almost the same per linear foot compared to standard FI lines. HTH.

Tony

[BoxsterGT]

The Olive metal return line is PN 911 356 085 00. It has M14 threads and is approx 1 meter in length.

The metric hose to match is considered DN06 and is 7.5mm x 13mm. In low pressure (0-20psi) apps no reason not to use whatever size hose (US or Metric) will clamp tight.

However, when you get to FI pressures (50psi & up) you really need the correct Metric hose & crimped sleeves.

I can order the fittings to make replacement hoses, but it will take a few weeks to bring them in from Germany. I have lots of the M16 fittings, but none of the M14 at this time.

If the OE metal lines are NLA, then perhaps there will be a small demand for correct Metric replacements.

Of course, SS Aeroquip hose & adapter fittings are available, but very likely more expensive.

Len

[Gunter]

Originally Posted by scott.k

Alright thanks for the advice.
Do I have to run metric line, if so do you know what size?
Thanks

To avoid confusion:

When one refers to a Metric threaded size, it's always M first.
Example: M14 would be a metric thread according to DIN (Deutscher Industrie Norm) with a 14 mm thread-size.

A line is usually identified by the inner diameter, I.D. in both S.A.E. or DIN. Depending on usage, pressure rating would be important.

I've also noticed lot of confusion between thread- and wrench size.
Example: A bolt M14 is referring to thread size only, wrench size is irrelevant because the type could be Allen socket or Torx or Hexagon or.....................?

Aside from the thread-size, the pitch and length is also indicated like: M14 x 1.5 x 50 mm.

[scott.k]

I believe these fittings would work. Right thread size, female, and they connect to an 8mm/ 5/16" inner diameter hose
I would just like for a confirmation from someone that they would do the job and then Ill buy a few
thanks for the help
i really appreciate it
it says it works with fuel lines too

HEADING_TITLE

[scott.k]

Are the fuel feed and return line the same pressure (not high pressure like the injector lines)?
Thanks
scott

[Gunter]

I'd say that there is little pressure in the return line since it only has to overcome gravitational pressure from the volume in the fuel tank.

But the pressure in the supply line from the pump is around 5 bar (70 PSI)