I had a braided fuel lines for a while, which was run in the cavity under the door inside the cabin. It made the cabin stink of petrol, despite no obvious leaks.
Eventually I got rid of it and used Kunifer pipe instead. No smell now.
Braided fuel pipes may have internal rubber tubes which are porous or damaged by the alcohol in modern fuels.
So I suggest that you get rid of that fuel pipe and fit one made all of nylon like the original or made of copper/kunifer.
Is it OK to reuse the original nylon fuel line? Mine is 53 years old… but still sound I think.
Thank you Bill,
I appreciate the advice. It’s absolutely nothing against you, but it made me angry because I realised that I would have to wait yet another few days or even weeks to get a new hose and I would miss next week-end when I plan to put the body on the chassis at last. (I can can work on the car only every other week.)
In the mean time, I have looked a little closer to what I bought. It’s a hose made of CPE (Chlorinated polyethylene). The product description says “Application: Racing fuel, pump gas, fuels with ethanol, alcohol based fuels, motor oil & coolant etc”. Looking in the Internet I found also “This hose uses chlorinated polyethylene (CPE) and is available in blue and black from Roadrunner Performance. Use it with fuel systems including methanol systems”.
But on the other hand I also found “https://www.motortrend.com/how-to/hrdp-1101-performance-fuel-hoses/” where they clearly recommend PFTE (i.e. Teflon) hoses and warn about the aging of CPE-based hoses with modern “agressive” fuels.
Now Im’ still scratching my head… but I wiil probably order braided PFTE hoses and the appropriate fittings tomorrw.
Thanks again for the warning
Following question : Do you know what your hose was made of ? Was it CPE or maybe some older type of rubber like neoprene ?
François
Sorry but No, I do not know what was inside the braided hose; I could never find any leak and the fittings were too secure to get braiding off to see if there were markings on the pipe itself.
All I really know is that it stank of fuel & that smell vanished when I changed to Kunifer metal piping.
You may be OK to use your braided hose with the pipe outside the cabin and your markings do seem to say it is ethanol proof. Later, with some difficulty you should be able to change a fuel pipe in the tunnel with the body on, by using the hole in the side of the tunnel under the plastic cover. (take the right-hand seat out.)