I did the drill mod a few months back, and when I tried to bleed the clutch master the plastic inner part of the QD connector was stuck and wouldn't move at all. I finally got it to move, but now there's a lot of "stiction" in there--it doesn't seem to be sealing properly or return to the same spot every time it's released. when I actuate the clutch master by hand, the QD fitting makes a sucking noise when I push and let off the rod.

Is the line toast, and can I replace it without buying the whole master assembly? If so, does anyone have the part number?

 

I would replace the line.