Lots of snippage


Old motorcycle trick is to elevate the mastercylinder and lever then
cable tie the lever with some pressure overnight. Any microscopic
bubbles will come out then.
Sounds like a more serios issue is at foot though

bagger




--
bagmaker

Does air dissolve in brake fluid? Wouldn't pressurizing the system
overnight cause the air bubbles to dissolve only to come out later after the
pressure is relieved? This is the reason for decompression during deep
dives.

My glider has a mechanical brake (which works quite well, thank you), but on
my motorcycles, I service the brakes with an oil can full of brake fluid. I
draw off as much fluid as I can from the master cylinder and then, using the
oil can, pump it up from the bleed valve at the caliper. It's pretty easy
on the bike to remove the caliper and hold it so that the hose is at the
top, allowing the air to go up the brake line to the master cylinder where
it'll escape as a bubble.