how can I purge the air from a new master cylinder with power booster that is already installed in the vehicle.
2006-06-19 13:55:55 · 7 answers · asked by Anonymous in Cars & Transportation ➔ Maintenance & Repairs
just fill it up and bleed the brakes
2006-06-19 13:58:55 · answer #1 · answered by italianpanther7 4 · 0⤊ 0⤋
A new master cyl . is supposed to be bench bled before installing it .Take it back off and get some flexible tubing and hook them to the bleeder valves on the MC so that it flows back into the bowls and doesn't suck air back into the MC Lock it in a vice and take a screwdriver or the rod that is hooked into the booster and keep plunging in in and out until no bubbles are seen. Tighten down the bleeder valves and then install it back on the booster ,hook up the two brake lines and then go to the rt rr caliper crack the valve open and let most of the bowl drain out (do not let it run empty) Then go to the lt rr and do the same and then to the rt frt and do it again and then lt frt and repeat.DO pump the brakes just let the fluid run down and replenish it without letting any bowl run dry This is called gravity bleeding
2006-06-19 21:14:03 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Remove the brake lines to the vehicle. Install 2 rubber lines back into the master cylinder. Fill the master cylinder. Pump the brake pedal slowly until there are no air bubbles coming from the rubber hoses. Reconnect the brake lines and bleed the brakes as normal.
2006-06-19 21:03:19 · answer #3 · answered by LeAnne 7 · 0⤊ 0⤋
I assume you are saying you have already put master cylinder on car? This is ok. We technicians usually bleed master cylinder before we put on vehicle. You can bleed the lines at the master cylinder first with your fingers, don't squirt yourself in eye. Also brake fluid will eat paint off of car, becareful. Have someone push brake peddle with your fingers off the holes on master cylinder and then put fingers over hole while they let off brake peddle. Do this probably ten times and the master cylinder should be bleed. Then put lines back on master cylinder. Then you should have pretty good peddle. Then make sure master cylinder is full and have somone pump brake peddle until firm and open the bleed screws one at a time at each brake. Keep repeating until the fluid comes out nice and clean, this will flush old brake fluid. Good Luck Master Tech
2006-06-19 20:59:53 · answer #4 · answered by soccergarysw 3 · 0⤊ 0⤋
With a Master Cylinder bleeder kit available from your friendly auto parts store, No, not the Zone! Disconnect the lines and put on the fittings from the kit and reroute the fluid back into the reservoir by pumping the pedal slowly.
2006-06-19 21:03:41 · answer #5 · answered by Karl S 1 · 0⤊ 0⤋
If you wana try this...
Open your bleeder screws just alittle and let it sit over night
tighten in the morning and fill
Try to bleed the brakes..
Any trapped air should come out easily.
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2006-06-19 21:09:16 · answer #6 · answered by Vulcan 1 5 · 0⤊ 0⤋
buy brake bleeder hoses, put 2 hoses in the master cylineder, the other two in the reservoir then tap on the brakes litely
2006-06-19 21:02:48 · answer #7 · answered by jam 3 · 0⤊ 0⤋