What does it mean when your brakes turn yellow?

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Old 10-18-2006, 12:39 AM
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What does it mean when your brakes turn yellow?

As pictured...









BTW, is that called a disc brake or a disc rotor? I'm talking about the yellow circle.
Old 10-18-2006, 12:41 AM
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rust? whens the last time you used them?
Old 10-18-2006, 12:42 AM
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It's not my car. I went to go test drive a used TSX today and I looked at the brakes and they were all yellow, like the picture above. So I was curious what that was.

Also does that affect braking performance?
Old 10-18-2006, 12:49 AM
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that happens when it was wet and wasn't driven around for a while. The moisture from rain/humidity builds and of course ur brake pad is basically steel up against steel. So you get rust. they come off right after you drive it around for a bit with some braking.
Old 10-18-2006, 12:55 AM
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Yeah! I'ts light surface rust. It can form pretty rapidly(overnight). It'll come off after some driving and braking.
Old 10-18-2006, 04:28 AM
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My TSX looks like that sometimes...I notice it only when I get around to washing my car.

Yes it's rust. The circle thing you're talking about is the rotor. The silver thing on the left side of the rotor is the brake caliper, which squeezes the brake pads together on both sides of the rotor to slow it down.

Water can do a few things to rotors...it can warp them (never splash water on them if they're still hot...very hot metal cooled down quickly is a bad thing). It can help create a layer on the rotor between it and the brake pads, so braking is diminished (which is why you lightly press on the brakes in the rain before you expect to stop or after you run through a puddle). And it can cause rusting.

And as mentioned previously, it will come off when you use it...at least the areas where the brake pads actually touch the rotors (which is where it matters anyway). The rust on the outer rim (the side of the rotor) won't come off on it's own. You'll probably want to just brake lightly to get the stuff off. After than, you can brake as hard as you want
Old 10-18-2006, 05:19 AM
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Originally Posted by SeCsTaC
As pictured...
BTW, is that called a disc brake or a disc rotor? I'm talking about the yellow circle.
Sometimes you ask the dumbest question.... It will not hurt or damage your break.
Originally Posted by 1slowTSX
Yeah! I'ts light surface rust. It can form pretty rapidly(overnight). It'll come off after some driving and braking.
even after a car wash....
Old 10-18-2006, 08:08 AM
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Originally Posted by 1slowTSX
Yeah! I'ts light surface rust. It can form pretty rapidly(overnight). It'll come off after some driving and braking.

You mean after an hour. This always happens after I wash my car. I take it for a nice drive afterwards to get rid of it.


It's not a problem, no worrys.
Old 10-18-2006, 09:38 AM
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The "yellow circle" is the disk rotor.

This might help --> How disk brakes work
Old 10-19-2006, 10:00 AM
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What it means is that a dog who drank too much gatorade pissed on them.
Old 10-20-2006, 12:34 AM
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Originally Posted by Chester
What it means is that a dog who drank too much gatorade pissed on them.
Old 10-20-2006, 07:55 AM
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Originally Posted by Chester
What it means is that a dog who drank too much gatorade pissed on them.

Old 10-20-2006, 10:45 AM
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It looks like disc brake Jondus....
Old 10-20-2006, 12:50 PM
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OMG, SHE'S GONNA BLOW!!

And yes, 1 hour before rusting is more like it.
Old 10-20-2006, 01:56 PM
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Originally Posted by S14 n Tsx
Sometimes you ask the dumbest question.... It will not hurt or damage your break.

even after a car wash....
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