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Less brakes, more gas!
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Milky Brake Fluid?
I was flushing the brakes in prep for a DE weekend. I'm switching from Motul to RS683 so I wanted flush out the system. When I held up a light to the drain hose I could see what looked like some milky stuff flowing along with the brake fluid. Not a lot, but a consistent ribbon of something. I could not tell what color it was since the hose is grungy. No air bubbles, though. I went through a whole bottle of RS683 trying to get it all out. It really only made an appearance at the rears. What is it? Water? Oil? I am not sure I got it all out, but I tried. The Motul was about a year old.
-Michael
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 Michael '82 Euro SC 'Track Rat' 22/29 Hollows, 22/22 Tarrets, Full ERPB F/R, Rennline Tri Brace, Glass bumpers, Pro 2000's, 5 pts, blah blah blah '13 Cayenne GTS |
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04-13-2012, 06:38 AM
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In the shop at Pelican
Join Date: Aug 2002
Location: Los Angeles, CA
Posts: 10,459
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Probably water. Flush the system out really well.
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04-13-2012, 06:43 AM
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Less brakes, more gas!
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That's what I am assuming it is, but prior to putting the Motul I was flushing the brake system 3-4 times/year for the previous 2 years... which means it must have collected in a year? Seems off especially since some cars don't change their fluids but once every 10-20 years... That Motul is not cheap either! Supposed to be a really good fluid so ...
I guess I'm saying I'm stumped as to where it would have come from... Old seals?
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Michael '82 Euro SC 'Track Rat' 22/29 Hollows, 22/22 Tarrets, Full ERPB F/R, Rennline Tri Brace, Glass bumpers, Pro 2000's, 5 pts, blah blah blah '13 Cayenne GTS |
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04-13-2012, 10:14 AM
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In the shop at Pelican
Join Date: Aug 2002
Location: Los Angeles, CA
Posts: 10,459
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Florida
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04-13-2012, 10:31 AM
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Tired Member
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Quote:
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Glenn Daily Driver - '78 911SC RoW Endurance Racer - '85.1 944 Street/Track Project - '86 951 Race Project - 944 Spec |
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04-13-2012, 10:33 AM
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Registered
Join Date: Jul 2009
Location: Sharon Springs NY
Posts: 350
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brake fluid is very hydroscopic.. it will attract water from anyplace possible. I've never had a problem, but i change my fluid after every 2 DE's or after every Race weekend so i'm a bit retentive on that front. I would suggest that you use a motive pressure bleeder, push out all the old fluid with it (no new in it). Then run a bottle or 2 of the cheap stuff through the system with the motive again to just flush out any stuff, then blow clean again and then re-fill with what ever fluid you choose.
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04-13-2012, 10:57 AM
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Ugly Betty
"The Porsche"
Endurance Racer
944 Spec "The green car"
Scalded Cheetah?
