Bench Bleeding Brake Master Cylinder

Step3 secure master cylinder on a work bench.

Bench bleeding brake master cylinder. Just don t use the dining room table. This isolates your master cylinder and keeps you from bleeding your brakes as well. You re just looking to drip paint clouding glycol on your car your workbench your tools etc.

If you need to replace or install a brake master cylinder you re going to have to bench bleed it before bolting the assembly to your firewall. Bench bleeding your master cylinder is not necessarily all that complicated but if we can make it even easier for you we will. Two methods on how to properly bench bleed a master cylinder.

Bench bleeding is especially useful with new master cylinders. It s almost impossible to completely prime the master cylinder in the car and any trace of air left in it will produce unusual and unexpected problems with your braking system. A bench mounted vise is a great tool for the job.

If you don t have one or don t have a bench at all you can buy a clamp on vise that can be removed when you re done. Position the maser cylinder on a work bench or table and make sure it is supported properly. While common gospel says you must bench bleed before mounting i simply refuse to do it this way and will.

Bench bleeding the master cylinder before it s installed in the car is an important step in ensuring you have good brakes on your beetle. New master cylinders usually ship with cheap plastic ones that will suffice. That s because due to the angle at which the master cylinder sits when installed bubbles can become trapped in an un bled master cylinder s fluid passages.

Another idea is to use a vise and position the mounting flange between the jaw clamps. Likely brake fluid will instantly fly out. Bench job done right.