Braided lines

[Cosnada]

Are different fuel line fittings used for standard braided lines and teflon braided lines? I have standard braided lines and yes, thay are smelly and was thinking of swapping to teflon lines but if I have to change fittings too then that will be cost prohibitive.

Any help on this one please?

[RedZedMikey]

I was recently advised to use braided teflon hose rather than the standard braided rubber hose when using unleaded fuels. Assuming that all manufacturers of the braided teflon hose adopt the same standard, then yes, different hose end fittings are required.

I will be using Speedflow hose and fittings (Aussie brand) when hooking up my new equipment, refer to http://www.speedflow.com.au/index.html and check out their comments under the technical section. It does appear than they are working on improvements to the 'standard' hose in -6 and -8 sizes, but results are not yet quantified.

The teflon "200" hose clearly has its own set of fittings inside their catalogue.

This doesn't speak for Russell, Aeroquip, or other suppliers of similar products.

Hope this helps.

[Al Weyman]

I will tell you something interesting/worrying that happened to me the other day. I was running up a new engine in my race car and suddenly saw fuel dripping into the cockpit, I thought WTF and shut down immediately. Well what it was is I have a fuel pressure guage with a correctly made up braided Aeroquip line coming from a a filter king. The guage is mounted under the hood not in the cockpit but somehow the line had developed a leak and was pumping out petrol at a rate of knots. Never seen one of these fail before and found it of great concern seeing as my brakes are made up from the same lines.

[Cosnada]

Thanks for the reply guys - I guessed that the fittings may have been different. I will just have to endure the whif of petrol when I am in the car. It seems odd that its smells like it does without any leaks - I assure you it doesn't leak.

Al - lucky escape there - quick action saved the day!

[RedZedMikey]

Originally Posted by Cosnada

It seems odd that its smells like it does without any leaks

I don't know what fuel you are running, but the following comes from the Speedflow catalogue in relation to standard stainless braided rubber hose ...

"Not recommended for use in confined areas with unleaded fuels due to permeation of fuel vapours"

Maybe have a look inside the hose and see if there is any evidence of deterioration or the rubber crumbling. Must be some pretty aggressive chemicals taking the place of lead these days.

[Al Weyman]

In my case I am using super unleaded so maybe thats why my line failed.

[Tim Falce]

Originally Posted by Al Weyman

I will tell you something interesting/worrying that happened to me the other day. I was running up a new engine in my race car and suddenly saw fuel dripping into the cockpit, I thought WTF and shut down immediately. Well what it was is I have a fuel pressure guage with a correctly made up braided Aeroquip line coming from a a filter king. The guage is mounted under the hood not in the cockpit but somehow the line had developed a leak and was pumping out petrol at a rate of knots. Never seen one of these fail before and found it of great concern seeing as my brakes are made up from the same lines.

Are they stainless steel braided covering Teflon pipe Al? If so maybe it didn't go together properly. Did you make the pipe up or someone else?

[Al Weyman]

No Think Auto made it some while ago probably 15 years ago. not sure what it is inside but the same guage stuff we use fr brake lines. I will check it out more closely later today.