Gasoline leakage... New Lines. No more smell!

[Fman]

I used to be diehard Fragola until last year. Was building a nitrous system using -4 all Fragola. Every PTFE line leaked. Sent photos to Fragola and they couldn't help. Finally they built the hoses for me and they leaked too. The actual hose they had in stock had an out of spec liner and they could not be made to not leak, even by Fragola. Nobody is perfect.
Had to build my system out of Earls and it is fine. Would have gone Aeroquip but had trouble finding the stock I needed. The only fittings and hose I'll trust on brake lines is Aeroquip.

I would say your situation was not the norm and extremely rare with a defective Fragola line, I have spoke with quite a few people using there fuel lines/fittings with no issues (including myself).

[mikeinatlanta]

I would say your situation was not the norm and extremely rare with a defective Fragola line, I have spoke with quite a few people using there fuel lines/fittings with no issues (including myself).

I agree and believed them when they said it had never happened before. Like most they immediately assumed that I wasn't putting them together correctly. What the actual issue was the PTFE liner was slightly undersized, so the crimp wasn't working correctly. They were shocked when theirs leaked too.

Point being that any brand can be an issue, which is why one should ALWAYS perform a pressure test @ at least 500psi on PTFE steel braided lines. You never know for sure until you test.

[facultyofmusic]

On pressure testing, how does one pump 500PSI into a line? The electric tire pump I have only goes up to 125PSI max.

[NAZ]

On pressure testing, how does one pump 500PSI into a line? The electric tire pump I have only goes up to 125PSI max.

The pressure used to test a hose assembly would depend on the application pressure and of course, don't exceed the working pressure rating of the hose & fittings used. A brake hose may require a greater pressure than a low pressure fuel line. For low pressure braided SS AN style fuel lines (carb or EFI) a typical home use style air compressor provides plenty of test pressure. I like to cap one end and adapt a short piece of polyflow tube to the other and attach that to an air hose. A bucket of water will give you instant results.

If you want to make your own brake hoses (not recommended) or make fuel lines for direct injection systems, you can either purchase a hydraulic pump or use an old master cylinder to rig a home grown high pressure tester. A hyd power pack pump can also be adapted -- you just have to be creative.

[Fman]

I agree and believed them when they said it had never happened before. Like most they immediately assumed that I wasn't putting them together correctly. What the actual issue was the PTFE liner was slightly undersized, so the crimp wasn't working correctly. They were shocked when theirs leaked too.

Point being that any brand can be an issue, which is why one should ALWAYS perform a pressure test @ at least 500psi on PTFE steel braided lines. You never know for sure until you test.

Looks like I did my pressure test with air incorrect, went to 65 psi for 10 minutes and no air leaks. The EFi system I am using runs at 58psi. Have not had any issues with fuel leakage to this point after 2700 miles on the car now. Knock on wood hopefully my luck continues.