Thread: Stainless steel double flares

Tweet

Stainless will work harden as you flare it and you won't be able to successively double flare it----use the 37* AN fittings and "B" nuts with the proper 37 degree flaring tool--

If you have tubing that is thicker wall you may need to anneal the end of the tube with a torch first---this usually only happens on the thicker stuff because the tubing cutter will work harden it while cutting and then the flaring tool will end up splitting it--if this happens just heat the end until it glows and then let air cool

Yes to all of the above advice.

But one more thing to check is to make "absolutely sure" that you have smoothed the seam on the inside of the flare. Stainless is so hard it will not seal with the small bump left on the tubing.

Sorry but you shouldn't be using seamed tube for brakes

Originally Posted by John Palmer

Yes to all of the above advice.

But one more thing to check is to make "absolutely sure" that you have smoothed the seam on the inside of the flare. Stainless is so hard it will not seal with the small bump left on the tubing.

Since the MC is under the floor, did you make sure you have a 10 lb residual valve inline?