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DIY - Replace Brake Master Cylinder Booster

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Old 10-24-10, 05:35 PM
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ray98LexGS
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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?
Old 10-24-10, 07:12 PM
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toy4life86
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its really easy theres only 4 bolts and the the lines on the unit and 3 plugs
Old 10-26-10, 04:00 AM
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ray98LexGS
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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?
Old 10-26-10, 08:33 AM
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kit cat
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in general, bleed the side with the longest distance first...but it's harder to tell with more modern cars.
Old 10-26-10, 10:18 AM
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werewolf
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That's a pricey part. Are you sure it's the master?

Symptoms?
Old 10-26-10, 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
Old 10-26-10, 04:45 PM
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ray98LexGS
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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.
Old 10-26-10, 04:48 PM
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masagsxr
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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!
Old 10-26-10, 08:55 PM
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jspecdan
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this is something i should do when i replace my pads and rotors.
Old 10-26-10, 11:29 PM
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NIXmx
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Can we convert to a vacuum booster and external ABS unit?
Old 10-27-10, 01:07 AM
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YviE
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I think that'll be an expensive solution. Might as well get a 2001+ BMC.
Old 10-27-10, 10:21 AM
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werewolf
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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?
Old 10-27-10, 12:14 PM
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NIXmx
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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.
Old 10-27-10, 12:31 PM
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YviE
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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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