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Go Back   IWSTI.com: Subaru WRX STI Forums > GD Series STi Discussion (2003/4-2007) > GD-Technical > GD-Braking


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Old 03-31-2007, 08:55 PM   #1
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Default First Brake Flush....White Goop in fluid?!!??!!!

Installed stainless lines in the front, installed Pagid Yellows in front, installed RCE brake ducts in front....today, before swapping my ExtremeContacts for the RE070 stockers. I didn't have time to do the rears, but that's what tomorrow is for... DirtyBird (Tom) came over and helped me with the bleeding - Thanks, man!!!

Anyway...when I have the calipers off, I squeeze the pads back into the caliper and the last bit of fluid comes out...with this strange "cottage cheeze" type of goop in the fluid. The fluid was a strange color...darkish, cloudy, and this strange white ****y goop...

...like sunblock!!!!...yep, like sunblock that didn't mix well.

WTF!!!! During the flush, the fluid comes out all cloudy, dark, foamy, ...something like the digestive result of drinking a gallon of white latex paint and old brake fluid. I bled the fronts until the fluid was clear (used Motul in preparation for Tuesday's HPDE at Limerock) and sealed everything up for tomorrow to do the rears.

I wonder what I'll find from the rear calipers... The car has only 3K miles on it and this is the first flush. I"ve never seen anything like this before.

Be good,
TomK


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Last edited by ace996; 03-31-2007 at 09:00 PM.
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Old 03-31-2007, 09:29 PM   #2
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That's strange. I've seen this happen when fluid was severely overheated and then cooled back down...have you tracked the car yet? You should be ok, just make sure you flush all that old fluid out of there. And you know the bleed order is LF, RR, RF, LR right?
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Old 03-31-2007, 09:45 PM   #3
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I do now...thank's, Dan.

No, I never tracked this car yet but I'm getting ready.

Be good,
TomK
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Old 03-31-2007, 09:49 PM   #4
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Maybe your car has an STD... Do you park next to SRT 4
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Old 03-31-2007, 09:50 PM   #5
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Quote:
Originally Posted by ace996
I do now...thank's, Dan.

No, I never tracked this car yet but I'm getting ready.

Be good,
TomK
No problem. Just to be clear, left is the driver's side. I always get L and R confused because some people look at it from different perspectives.
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Old 03-31-2007, 10:24 PM   #6
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Quote:
Originally Posted by shegavein
Maybe your car has an STD... Do you park next to SRT 4
I thought that car looked a little dirty around the tailpipe!!!!
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Old 04-05-2007, 09:55 AM   #7
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I saw this in a bunch of 06 STi's. Little white 'particles' floating' in the fluid.

I have to think it was on purpose - it was in several cars with the factory fluid fill.

<<perplexed by weird stuff

It was definitely not in my 06 WRX calipers.



Quote:
Originally Posted by ace996
Installed stainless lines in the front, installed Pagid Yellows in front, installed RCE brake ducts in front....today, before swapping my ExtremeContacts for the RE070 stockers. I didn't have time to do the rears, but that's what tomorrow is for... DirtyBird (Tom) came over and helped me with the bleeding - Thanks, man!!!

Anyway...when I have the calipers off, I squeeze the pads back into the caliper and the last bit of fluid comes out...with this strange "cottage cheeze" type of goop in the fluid. The fluid was a strange color...darkish, cloudy, and this strange white ****y goop...

...like sunblock!!!!...yep, like sunblock that didn't mix well.

WTF!!!! During the flush, the fluid comes out all cloudy, dark, foamy, ...something like the digestive result of drinking a gallon of white latex paint and old brake fluid. I bled the fronts until the fluid was clear (used Motul in preparation for Tuesday's HPDE at Limerock) and sealed everything up for tomorrow to do the rears.

I wonder what I'll find from the rear calipers... The car has only 3K miles on it and this is the first flush. I"ve never seen anything like this before.

Be good,
TomK
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Old 04-06-2007, 12:00 AM   #8
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when do you have to brake flush? sorry to go off topic
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Old 04-06-2007, 06:12 AM   #9
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If you capture some of the fluid in a clear vial and let sit for a few hours is there any separation? When I performed this on a Saab the other night it had similar material. After sitting a day in my 1 man bleeder vial, the brake fluid cleared. I suspect air from the 1 man bleeder suction.
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Old 04-07-2007, 12:00 PM   #10
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I thought the order was RF, LR, LF, RR...

~Jesse
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Old 04-07-2007, 12:12 PM   #11
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It's Driver F, Pass R, Pass F, Driver R. Like I said, different people have different conceptions of what L and R are.
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Old 04-07-2007, 12:14 PM   #12
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Quote:
Originally Posted by reeksti
when do you have to brake flush? sorry to go off topic
would like to know as well
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Old 04-07-2007, 01:47 PM   #13
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Quote:
Originally Posted by reeksti
when do you have to brake flush? sorry to go off topic
Most manufacturers recommend every 12/24 months. Information should be listed in the maintenance guide. If tracking the car, your interval should be much more frequent, no more than 12 months or after every track event.


BTW, we had a discussion @ work about dealers charging for various fluid flushes that in most cases (non track event-daily driver) would not be needed. We all agreed we could not remember the last time anyone had to rebuild a master cylinder or wheel cylinder. Hell, I drove a 1992 X-brand vehicle until last fall (145K hard street miles) and never did anything to the brake fluid. DOT4 is less prone to moisture intrusion than DOT3 and appears to be better in the long term. Disclaimer, if tracking your vehicle all bets are off and you should lean towards frequent flushing/bleeding of your brake system.

Darryl

Last edited by Got2Boostit2; 04-07-2007 at 01:55 PM.
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Old 04-07-2007, 07:27 PM   #14
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I saw some real heinous crap when I did the passenger rear side, the last one, as I was replacing the stock fluid with ATE Superblue. It was kinda white, foamy, and bubbly (sick dude)....


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