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Master Cylinder

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Old Jun 5, 2010 | 06:47 PM
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Self-bleeding? Never heard of it. Though a pressure bleeder is, IMHO, well worth the investment. Unless you really like hollering from under the truck at the person whose foot is on the brake pedal.
 
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Old Jun 5, 2010 | 08:59 PM
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that's the problem when someone talks like they know it all when in reality they know NOTHING.

I figure if there is such a thing as a self-bleeding brake system it's not on Fords or Dodges. Maybe a Benz, but not no Ram or Windstar. Sheesh.

Is it normal to not have a whole lot of bubbles? Always seemed like there would be whole slew of bubbles. After all the old fluid was flushed only a few bubbles ever appeared. After all 4 were bled, I did each again for 6 cycles...no bubbles. Brake feels normal.
 
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Old Jun 5, 2010 | 09:03 PM
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a vacuum pump like this will allow you to suck air and fluid out of the wheel cylinders/calipers and lines, from the wheel end.

so yes, its a one-man brake bleeding tool.
no, its not completely automatic.
http://www.harborfreight.com/brake-b...campaign=2210B
 
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Old Jun 5, 2010 | 09:05 PM
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The brake lines don't really hold a lot of volume. If you change calipers/wheel cylinders, and the lines get a chance to drain out.... you may get a fairly significant volume of air.... but, generally the lines don't drain that thoroughly. But, you didn't change any of that... just the M/C, and you should have bench bled that before installation. (you DID do that, didn't you?) so, the volume of air in there would be negligible. It really isn't that much of a surprise.

Flushing all the old fluid was a good plan. Something that should really been done every couple years, but, most folks NEVER do...... Oh well.

Enjoy your good brakes, and peace of mind.
 
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Old Jun 5, 2010 | 09:19 PM
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Originally Posted by UnregisteredUser
Self-bleeding? Never heard of it. Though a pressure bleeder is, IMHO, well worth the investment. Unless you really like hollering from under the truck at the person whose foot is on the brake pedal.
I've used that type of bleeding on Mopars and Fords since 1978 when replacing just the calipers. Just crack the bleeder valve open (one at a time) and watch and keep the M. C. full. Never tried on wheel cylinders.
The vacuum pump like DH suggested works also.

Just remembered, it is called gravity bleeding.
 

Last edited by charlie1935; Jun 6, 2010 at 06:42 AM.
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Old Jun 5, 2010 | 10:05 PM
  #16  
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No, I didn't bench bleed it. I attached it to the booster and then had my "helper" pump the brake to bleed the MC with out any lines being attached. I guess that means it was bench bled, just not on a bench.
 
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Old Jun 5, 2010 | 10:43 PM
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Originally Posted by charlie1935
Never tried on wheel cylinders.
Works great on wheel cylinders, too. Given my druthers I'll never do two-person bleeding again unless it's the second person's job to keep the pressure bleeder filled and pumped while I creep around underneath.

It's pretty nice being able to do all four in 20 minutes or less from start to finish.
 
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Old Jun 5, 2010 | 11:23 PM
  #18  
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bench bleeding is where you put the master cylinder in a vise, and attach the little plastic hoses to the output lines, and loop them back up to the reservoir... then pump away and recycle all the fluid. its a huge amount of air that pumps out, and it doesn't waste a lot of fluid and time.
 
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