Bench Bleeding Master Cylinder

NOTE: It is not necessary to bleed entire brake system after replacing master cylinder, provided master cylinder has been bled and filled to proper level.

NOTE: Bleeder tubes must be installed on master cylinder when performing bleeding procedure. Bleeder tube must contain double ISO flare with metric nuts.

Clamp master cylinder in soft-jawed vise. Install bleeder tubes in outlet ports on master cylinder with ends of bleeder tubes positioned in brake fluid reservoir. Fill master cylinder with brake fluid.
Ensure ends of bleeder tubes are submerged in brake fluid reservoir on master cylinder. Using wooden dowel, slowly depress pistons in master cylinder and then release pistons, allow pistons to return.
Repeat procedure until no bubbles discharge from bleeder tubes. Remove bleeder tubes and plug master cylinder outlets to keep fluid from draining.