"Use a syringe with a tube attached to bleed nipple "
If you reverse the process, Fill syringe with fluid, attach to wheel brake nipple, push fluid Up the line to the reservoir, just make sure its not over full.
Saves fighting the law of, air bubbles raising to the surface, when pushing fluid down the brake-line.
spacesailor
That's what we do these days on mountain bikes. . (Syringe on nipple.) -
Sometimes, if I don't have the syringe handy, (mountain bike) there is another cleaner way.... I remove the reservoir cover, ensure it is topped up. I tap the brake lines over their length with a donger while pumping the brake lever . You watch the air bubbles come out of the pipe to the surface in the reservoir as you pump and tap . Most of those brakes are mineral oil. A few (Avid) are Dot3). IE can get away with not opening the bleed nipple. have done this in a vehicle also... (bleeds air but of course doesnt change out the fluid) (and mountain bike calipers are small pots !) Orientation matters, also. getting air out of the actual caliper may require re-orientation of the bike or caliper. harder to do on a vehicle or aircraft...
19. Brakes update
in Skyreach Bushcat LSA build
A blog by danny_galaga in Aircraft Building
Posted · Edited by RFguy
That's what we do these days on mountain bikes. . (Syringe on nipple.) -
Sometimes, if I don't have the syringe handy, (mountain bike) there is another cleaner way.... I remove the reservoir cover, ensure it is topped up. I tap the brake lines over their length with a donger while pumping the brake lever . You watch the air bubbles come out of the pipe to the surface in the reservoir as you pump and tap . Most of those brakes are mineral oil. A few (Avid) are Dot3). IE can get away with not opening the bleed nipple. have done this in a vehicle also... (bleeds air but of course doesnt change out the fluid) (and mountain bike calipers are small pots !) Orientation matters, also. getting air out of the actual caliper may require re-orientation of the bike or caliper. harder to do on a vehicle or aircraft...