Can someone send me a link to bleeding the Master Cylinder?

[Digital_Synapse]

I bled the damn lines 4 times now. I don't know how to bleed the master cylinder and I feel that's the last step. Can someone link up a detailed how-to step by step to bleed the MC on a 2011+ mustang with Brembos. I've google searched and "search functioned" myself to death.

 

[JeremyH]

Are you pumping the clutch or using a vacuum pump? Either way the best way seems to be jacking up the front rleft corner of the car. And using a hand vac pump on the master cylinder cap or pumping the shit out of the clutch or both.

 

[Digital_Synapse]

Bleeding the brakes. Car is an auto.

 

[Eel Mit]

Pump the pedal and hold it, follow the lines going to the ABS module and loosen them there. You will see a few bubbles flow out and then a solid stream of fluid. Tighten fittings. Done.

Good Luck,

Tim @ Maximum

 

[JeremyH]

Why would you need to bleed the whole cylinder if just bleeding brakes? What work have you done recently?


Get a friend to pump the pedal and hold it as you open the bleed fitting at the calipers if its just brake work.

 

[Digital_Synapse]

The pedal feel is still squishy after bleeding the lines a few times. Better each time, but still soft and not "factory firm". I replaced the rotors and pads all around. Lines were never opened. Car is a 2014. Figured I drove a little too hard and boiled the lines and the water that may have absorbed through the lines maybe boiled and made gas bubbles. That's probably a stretch but it's as best as I can think what happened. Everything I've read points to bleeding the MC, then each of the lines going RR, LR, RF, LF. I just don't see any bleeder screws at te MC, and I don't think there is any air in the ABS module. I read if there was, that the dealer is the one who has a program to cycle the ABS. I don't like touching things that I don't understand, especially thins responsible for stopping the car lol.

I need something with pictures. haha.

 

[CPRsm]

If the lines were never opened the feeling getting better after a bleed is probably your imagination unless there really was air in there. You're doing it right. Only need to do the master if you put a new one on. Even then you do a bench bleed first, install and bleed as normal. But don't pump the brakes. One push, hold, crack bleeder, close, lift. Pumping the pedal can cause a bulbs to explode into a million and make it a bitch to get them all.

 

[toorbeenee]

Lots of ppl don't use the inside bleeder when they bleed there brake . maybe you missed it. the below vid will show you how ..good luck.

 

[Digital_Synapse]

Lots of ppl don't use the inside bleeder when they bleed there brake . maybe you missed it. the below vid will show you how ..good luck.

Thanks buddy I didn't miss that bleeder. Did the outside first, then inside, following the furthest to closest rule.

If the lines were never opened the feeling getting better after a bleed is probably your imagination unless there really was air in there. You're doing it right. Only need to do the master if you put a new one on. Even then you do a bench bleed first, install and bleed as normal. But don't pump the brakes. One push, hold, crack bleeder, close, lift. Pumping the pedal can cause a bulbs to explode into a million and make it a bitch to get them all.

I got some bubbles, the pedal would go 80% the way down before biting, then 60% then 30%, etc. So there was improvement.

 

[BeachMonkey100]

Are you pumping the clutch or using a vacuum pump? Either way the best way seems to be jacking up the front rleft corner of the car. And using a hand vac pump on the master cylinder cap or pumping the shit out of the clutch or both.

this! a vacuum pump on the master cylinder cap is the best. I can't find any more info on it to share, but it does work.

 

[Bullitt 3309]

I swapped out to speed bleeders I also replaced the Master cylinder to the Auto one to separate the Clutch. I also swapped to DOT 4 fluid as well. With that said, I didn't get air in. Do you have speed bleeders? They make it so easy to bleed/flush.

 

[Digital_Synapse]

I swapped out to speed bleeders I also replaced the Master cylinder to the Auto one to separate the Clutch. I also swapped to DOT 4 fluid as well. With that said, I didn't get air in. Do you have speed bleeders? They make it so easy to bleed/flush.

I don't have SB, I will look into those. Thanks y'all.

 

[Bullitt 3309]

I don't have SB, I will look into those. Thanks y'all.

Speed bleeders are a great investment. You can bleed the brakes by yourself. They have a one way check valve that when loosened up, allow fluid to escape, but no air back in.