Brake Lines - Testing & Issues

[mikeinatlanta]

The eastwood tool is an issue. Maybe ok for aluminum or nicop but not stainless. what you need to do is to get a sealing surface finishing tool and grind your sealing areas on the flares. As already stated, pressure testing with nitrogen should be at 1000 psi minimum. A sealing washer may get you there, but not an optimal solution. Happy to help further through pm, but not willing to go much further in public. You are getting some bad information in this thread.

Me: Retired. 45 years aviation mechanic, research and development technician, heavy maintenance technical consultant.
https://koultools.com/product/flare-lapping-tool/