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DIY - Replace Brake Master Cylinder Booster

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Old Oct 24, 2010 | 05:35 PM
  #1  
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Default DIY - Replace Brake Master Cylinder Booster

I have a 98 GS400 and wondering if there's a DIY to replace it?
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Old Oct 24, 2010 | 07:12 PM
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its really easy theres only 4 bolts and the the lines on the unit and 3 plugs
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Old Oct 26, 2010 | 04:00 AM
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Originally Posted by toy4life86
its really easy theres only 4 bolts and the the lines on the unit and 3 plugs
As for bleeding, is there any special type of bleeding measures or is it the standard bleeding from the brakes?
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Old Oct 26, 2010 | 08:33 AM
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in general, bleed the side with the longest distance first...but it's harder to tell with more modern cars.
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Old Oct 26, 2010 | 10:18 AM
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That's a pricey part. Are you sure it's the master?

Symptoms?
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Old Oct 26, 2010 | 12:10 PM
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i was having problems bleeding until i bled from the master unit, so id recommend bleeding the master unit
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Old Oct 26, 2010 | 04:45 PM
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Originally Posted by werewolf
That's a pricey part. Are you sure it's the master?

Symptoms?
Just replaced it and bled from the brakes... So far no lights and brake feel is MUCH better. I found a used one from TX.
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Old Oct 26, 2010 | 04:48 PM
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Bench bleed the master cylinder first... That means bleeding it before installing on the car. Then bleed from farthest line (Rear passenger, rear driver, front passenger, front driver). Done!
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Old Oct 26, 2010 | 08:55 PM
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this is something i should do when i replace my pads and rotors.
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Old Oct 26, 2010 | 11:29 PM
  #10  
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Can we convert to a vacuum booster and external ABS unit?
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Old Oct 27, 2010 | 01:07 AM
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I think that'll be an expensive solution. Might as well get a 2001+ BMC.
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Old Oct 27, 2010 | 10:21 AM
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Originally Posted by YviE
I think that'll be an expensive solution. Might as well get a 2001+ BMC.
What's different about a 2001+ BMC?
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Old Oct 27, 2010 | 12:14 PM
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Originally Posted by YviE
I think that'll be an expensive solution. Might as well get a 2001+ BMC.
Maybe an LS400/430 set up? When the BMC is $1,300ish, you think outside the box. Obviously safty would be #1. I'm not saying "Let's do ghetto conversions based on theory. Hopefully it works out better than communism." It was just a thought.
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Old Oct 27, 2010 | 12:31 PM
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The 2001+ BMC doesn't have the design flaws of the 98-00 BMC. There are threads about this.
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