[header] How to bleed a master cylinder [title] Gather your supplies. [step] Bleeding from the bench is much easier than bleeding using the pump method, which takes a very long time and may not work. It is also much less expensive than taking your master cylinder into a mechanic, who will quickly (and expensively) do it with vacuum pumps. 
It is also necessary if you are installing a new master cylinder. To bleed your master cylinder from the bench, gather the following supplies : [substeps] Your master cylinder with bleed kid fresh brake fluid a workbench or table with a fixed vise.