Ok, went to Mark Williams site, the brakes I selected and the M/C I selected were not right for each other.

So I bought the Tilton 1.125 bore M/C. bled it last night, hooked everything up and WOW awesom pedal.

Issue is the fitting at the M/C is leaking. It is a new #3 AN union. All my lines are AN so this works or it should. Not I did not smash the fitting on as aluminum to aluminum should not need it to seal.

My gut and background is screaming I need an "O" ring in there.

Anyone have this issue? How did you stop the leak? Did you just smoke it down? Did you use an "O" ring on the union? Did you use a longer union or bulkhead fitting with a "O" ring, teflon back up and jam nut?

This is killing me. I have everything taken care of, I think and this is holding me up....