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TR2/3/3A Is 1/4" nickel copper brake line tubing suitable.......

If for fuel, why not standard steel fuel line? I sense enough vibration and other factors in the routing of that line around the engine that I lean toward something stronger for fuel line. For brake line, I’d say the same, though I’ve seen copper for the short connector pieces at the front calipers.
 
If for fuel, why not standard steel fuel line? I sense enough vibration and other factors in the routing of that line around the engine that I lean toward something stronger for fuel line. For brake line, I’d say the same, though I’ve seen copper for the short connector pieces at the front calipers.
Steel was the original. I have 3 TRs using the CU-NI with an accumulated 15+ years of use. I am still good to go.
Charley
 
My TF has all CU-NI lines on it. It is so nice to work with and as stated, very forgiving. I do prefer using the proper tube bender though and double flaring tool.
 
i also am using the C-N for fuel lines for 2 years now as mentioned above, it is preferred for its ability to be shaped more easily. Bruce
 
Used on my TR3 restoration for both brake and fuel lines. Easy to bend and will not rust. I have had no issues in 12 years. Cheers, Mike
 
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