Fuel line for +2

PostPost by: alaric » Thu Dec 27, 2007 11:48 am

Hi all. I need to fit the fuel line to my +2.

If I use a metal pipe, will copper nickel do the job, or will it be attacked by modern fuels - I have been warned that chemicals can be leached out leading to porosity?

If I went to stainless, would the standard banjo coupling with its olive compression fitting be appropriate for that material?

Sean.
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PostPost by: Frank Howard » Thu Dec 27, 2007 3:22 pm

Sean,

Standard brake pipe does the job nicely. I used two olive compression fittings. One of them went on the brake pipe and the other went on the metal nipple extending from the fuel tank (on my +0) which might be different on your +2. A standard compression coupler was used to connect the two.

The line was routed through the top right hand side of the chassis back bone where the factory provided holes drilled in the bulkheads. Mine had rubber grommets installed already.

At the front, a simple hose clamp was used to attach a rubber fuel line which goes to a short piece of brake pipe secured by another hose clamp. The rubber fuel hose is used to compensate for engine movement relative to the chassis. This short piece of metal brake pipe is connected to the fuel pump using another olive compression fitting.

Hope this helps.
Frank Howard
'71 S4 SE
Minnesota
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PostPost by: alaric » Wed Jan 02, 2008 7:35 pm

Thanks Frank.

I have gone for the copper pipe following your suggestion. I'm using 1/4" instead of standard brake pipe which is 3/16". This means I can simply replace the plastic pipe and use all the original fittings. That's tomorrow's job.

All the best.

Sean.
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