I flared/shaped a cunifer brake line to replace an old original brake line, and I cannot get the threads on the fitting to start grabbing into the brake master cylinder port threads. the simplest reason I think explains this is that the new cunifer line is going in the port at a slight angle so the fitting doesn’t get in all the way. Any other ideas welcome.
more details : I test-fitted the new line and fitting to the old brake master cylinder port with success. Two other old original brake system lines thread into the new cylinder as expected (in separate ports). I note that the new line, where it is supposed to connect to the cylinder port, appears pretty straight when held next to the old one, and the fitting slides back/forth without snagging. the bubble flare is not identical, but differs by less than 1mm in length. however, I tried two or three times so far, wiggling the line in between turning the fitting with my fingers, and also bending the line a bit more to get it to sit all the way down. this is troubling because while trying this, the fluid seeps out of the port, lubricating the fitting, and also making a puddle on the floor. The other two lines were done with minimal trouble. I also note the new cylinder has one of those plastic blue bleeder port fittings in it nice and snug. At worst, I hope to use the old line or get a new factory line. That’s enough detail for now.