Quote:
Originally Posted by DarrenSV650S
I was bleeding a m/c off a naked sv today. I was just swapping the old m/c for the sv one so the system already had fluid in it.
I connected the hose and filled the reservoir. Then I found that if I moved the lever very slightly air bubbles would come up. I kept doing that until there was no more bubbles coming up. There was a little bite to the lever but not enough so I bled the system.
So the master cylinder must allow some air to pass back up
|
Was that just air from the unpressurised side of the cylinder though? I don't really know for sure, but maybe a brakes expert will be along soon.
Even though my cylinder is not bolted to the bars, my system is intact from the cylinder to the caliper, so the brakes work fine. If bubbles will rise from the unpressurised side of the system into the reservoir as you describe then that may answer my question and I don't need to bleed my brake lines.