[RICK LAKE]

saltshaker You need to bleed the master first back into the fluid tank to remove all air from the master. It might be easier to just take the car and go to a garage with a pressure system and let them do this. Problem is the air want to stay in the system and goes to the highest location and is hard to remove. You can try using a short 2 pieces of brake line that will screw into the master and 2 plastic hoses to run to the fluid tank. they must stay under the fluid level to not suck air. Start pumping slowly. May take 2-10 minutes to remove all the air from the system. The tiny bubbles will be gone. Get the lines back on the master and then try your vacuum pump to remove the rest of the air. Tap on all the calipers with a small hammer to shake the air bubbles in them so they come to the top and will go out the bleeders. Cobra system is not a good gravity bleed system, master is lower than calipers. Rick L.