flared copper fuel lines

[Steve (DE)]

What are your thoughts on sealants for flared copper fuel line connections? Anybody use Teflon tape? How to make it less likely that these lines and connections will leak if I ever get to trying to start this old Case L.

 

[casenut1]

Teflon tape only works on plumbing pipes.fuel eats the tape.

 

[Joe (Wa)]

Sealants are not recommended for soft drawn copper flares. It just provides some separation that promotes leakage. You're just screwing youself.

Joe

 

[souNdguy]

1, flares don't need sealant.

2, copper is a poor / unsafe choice for a fuel line... use brake line instead...

 

[Patsdeere]

However, they do have a fuel resistant tape that is yellow. Works good. However I agree, no tape on flares.