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Posted by: MikeM Jul 25 2018, 07:21 PM

Hi all...74 2.0 liter with Djet...
What size are the fuel lines in the engine compartment that connect to the fuel rails?
Need to replace a couple...
Thanks

Posted by: 76-914 Jul 25 2018, 10:58 PM

IIRC, 8mm connecting the 2 fuel rails together *mm from pressure reg to return line and 7mm from fuel rail to injector. I've had wine tonight and might be prone to error.

Posted by: 914Sixer Jul 26 2018, 07:17 AM

Make sure you do NOT used the braided hose UNLESS you are going for 100% original. Porsche replaced them on the fuel line recall. Use modern fuel line.

Posted by: The Cabinetmaker Jul 26 2018, 07:22 AM

What Mark said. It should be ethanol rated too!

Posted by: Jeff Bowlsby Jul 26 2018, 08:03 AM

We could tell you the size but why don’t you just measure the fuel rail OD yourself?

The fuel rails are 100% accessible to measure without taking anything apart.




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Posted by: MikeM Jul 26 2018, 10:08 AM

Because I don't have it apart. But thanks for your helpful comment.

Posted by: Mark Henry Jul 26 2018, 12:14 PM

5/16" SAE 30R9 FI hose.

Posted by: Bartlett 914 Jul 26 2018, 12:22 PM

The FI hose is important. It is rated for higher pressure. Standard hose can work but you are taking a gamble.