What's the best replacement fuel line? (was Where to find 4kq brake parts?

[Kurt Deschler]

Kevin,

Here is what I did for the fuel lines on my 5k. Basically, you can 
couple the 8mm hard lines to standard 5/16 line with compression fittings 
if the front side of the lines is not rusted. This worked out very nice.

--

The lines are 72" long. The longest single tube that I could find was
60". I cut a 30" in half for the front side and coupled these to the 60"
lines.  the cut side attaches with compression fittings to the original
14mm metric ends at the front. The original ends should be cut just in
front of the last hanger. They do not need to be disconnected but must
be sanded smooth for the compression fittings. Get the back side bent,
attached, and hung.  Installing the hard plastic line to the fuel
pressure accumulator on the new nipple is a nightmare. Best bet is to
pull down the accumulator and remove the line. I ended up using a
cigarette lighter after wrecking half of the line with a heat gun. Only
heat the very end of line and only enough to get it on the fitting with
significant force. Finally, tighten all of the fittings one you are sure
it all lines up.

> Message: 9
> Date: Mon, 30 Oct 2006 22:38:00 -0500
> From: "Kevin Hoff" <kwhoff at gmail.com>
> Subject: What's the best replacement fuel line? (was Where to find 4kq
> 	brake	parts?)
> To: "Quattro List" <quattro at audifans.com>
> Message-ID: <000901c6fc9d$f7cc6370$0700a8c0 at KWHHO>
> Content-Type: text/plain;	charset="us-ascii"
>
> Thanks for the help everyone - turns out I was able to salvage the old tee
> fitting after getting it off the car.  A local shop makes line to order with
> the proper flanges and fittings so I simply ripped all of the hard line out
> of the back of the car and started from scratch.
>
> Now of course a fuel line is starting to leak from under one of the silver
> clamps...  I was going to replace the hard fuel lines with copper tubing
> like for an ice maker but have read somewhere that contact with copper is
> bad for fuel.  Any suggestions on a good, available, not terribly expensive
> material to use for fuel lines?
>
> --Kevin H.
> Durham, NC
> 86 4000 quattro (Now in my sig since it moves and stops under its own
> power!)