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  #1  
Old 24th July 2012
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05Aero21 05Aero21 is offline
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Default Brake bleeding psi?

Going to bleed my brakes......getting the Motive Black Label bleeder.What psi should I be at when priming the bleeder? I don't want to crack the master cylinder w/too much pressure. Is 10-15 psi decent? I've read around people setting it at 20. Getting the ATE Super Blue fluid so I can see the change to new better.
Looks like an easy DIY. Have the proper wheel to wheel configuation down, and never let the MC run dry. Any other tips welcome.
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Old 24th July 2012
Norm95 Norm95 is offline
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Right foot pedal pressure is all you need. Open the bleeder screw, pump, last pump hold pedal down with broom or shovel, tighten bleeder screw, and your done. Pump 25 times for the rear 15 times for the front.
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Old 24th July 2012
MI-Roger MI-Roger is offline
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The instructions that came with my Power Bleeder state to use 10psi. I didn't find these instructions until after I bled my brakes, where in I used mid-scale on the pressure gage or 15 psi. No subsequent brake problems having used 15 psi.

Other tip: Buy the swivel hose adapter for the Power Bleeder. The standard hose without a built-in swivel is a real PITA to connect and disconnect. Maybe your "Black Label" version comes equipped with the swivel.
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Old 24th July 2012
blackls1ttop blackls1ttop is offline
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crack the master cylinder??

the brake system runs on a couple thousand psi with the power booster being used.
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  #5  
Old 24th July 2012
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Quote:
Originally Posted by blackls1ttop View Post
crack the master cylinder??

the brake system runs on a couple thousand psi with the power booster being used.
I just read that somewhere online as I was researching how to do this w/the power bleeder.......not too pressurize it too much.
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Old 24th July 2012
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Quote:
Originally Posted by MI-Roger View Post
The instructions that came with my Power Bleeder state to use 10psi. I didn't find these instructions until after I bled my brakes, where in I used mid-scale on the pressure gage or 15 psi. No subsequent brake problems having used 15 psi.

Other tip: Buy the swivel hose adapter for the Power Bleeder. The standard hose without a built-in swivel is a real PITA to connect and disconnect. Maybe your "Black Label" version comes equipped with the swivel.
I think it comes w/it, but I'll make sure when I get it.
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Old 24th July 2012
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Quote:
Originally Posted by Norm95 View Post
Right foot pedal pressure is all you need. Open the bleeder screw, pump, last pump hold pedal down with broom or shovel, tighten bleeder screw, and your done. Pump 25 times for the rear 15 times for the front.
I'm sure that method works.........I know from the old school days. The only problem is you have to constantly look to see if your running your MC dry.
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Old 17th January 2013
a3holerman a3holerman is offline
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Another thought and it did happen to me. If you use the pump to the floor method you run the real risk of damaging the master cylinder. The reason being is that the plunger with the rubber seal is now going into and area of the cylinder it never get to and there may be some rust/corrosion there and it could ruin the seal.

Tom
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  #9  
Old 17th January 2013
demosan demosan is offline
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Quote:
Originally Posted by 05Aero21 View Post
Going to bleed my brakes......getting the Motive Black Label bleeder.What psi should I be at when priming the bleeder? I don't want to crack the master cylinder w/too much pressure. Is 10-15 psi decent? I've read around people setting it at 20. Getting the ATE Super Blue fluid so I can see the change to new better.
Looks like an easy DIY. Have the proper wheel to wheel configuation down, and never let the MC run dry. Any other tips welcome.
I use the motive bleeder as well ( it is fantastic tool and makes it a simple one person job) and use 15psi with no problems in any of my cars.
Good Luck demosan
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  #10  
Old 17th January 2013
helmetvonthrob helmetvonthrob is offline
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Use the minimum pressure to get the fluid moving!
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