I just bought a wilwood brake proportioning valve.and a master cylinder for a 4th gen. Once I install the wilwood brake proportioning valve. how do I bleed the brakes? is there an order to go in? Do I open up all the bleeder screws and just let the fluid flow? This is my 1st time doing all 4 brakes at once.

 

Step 1 bench bleed the master cylinder. I start at the right rear after that with all of the bleeders closed I'll open the right rear in an attempt to get fluid to flow, sometimes it won't. If it doesn't flow on it's own I'll have someone press the pedal with the rr bleeder open and have them hold it down until I close the bleeder. Repeat until fluid flows. Don't let the MC go empty. Then go to the LR and do the same. RF next then LF. I am usually by myself so I have used a broomstick pushing the pedal and wedging it to the seat.

 

without a link, or a picture, we dont know prop valve or anything else about what you bought / installed.

Therefore we cant provide any real info for you.