15+ Bench Bleed Master Cylinder Background. The problem with air is that it is compressible, while the fluid that goes in your braking system is not. It consists of two rubber hoses and two temporary plastic threaded inserts.
The master cylinder holds the brake fluid, generates hydraulic pressure and feeds that pressure to the front and rear brakes. There isn't a master cylinder made with less than 2 ports so you have to purchase 2 of these kits to use it to bench bleed a master cylinder. Bench bleeding is especially useful with new master cylinders.
Hey guys, i'm attempting to bench bleed my new master cylinder and can only get fluid to come out one of the brake line openings (the larger one).
While common gospel says you must bench bleed before mounting. You can buy the plastic bleeding kit with fittings and lines from most auto stores. It is mandatory to bleed brakes after installing a new brake master cylinder. Anyone heard of bench bleeding a master cylinder, and if so would anyone.