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Drivetrain So what causes brake squeal?

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Old Feb 16, 2004 | 07:50 AM
  #1  
d2mini's Avatar
d2mini
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I installed some new mintex red-box pads (still using stock rotors with 2k on them) and i now have squealing when coming to a stop. Do the pads just need to fully bed into the rotors? I have about 200 miles on the pads now.
 
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Old Feb 16, 2004 | 08:04 AM
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Minzila
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Brake squeal is cause by the vibration between the back of the brake pad and the piston pushing against it. I haven't done a brake job on my MINI, so I don't know what method MINI uses. You can use a lubricant specially made for this problem. I have also seen soft metal shims for the same job. If you use the lubricant, don't get any on the braking surface. Mercedes makes a great brake lube, it really works. Hope this helps.
MB
 
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Old Feb 16, 2004 | 08:34 AM
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>>I installed some new mintex red-box pads (still using stock rotors with 2k on them) and i now have squealing when coming to a stop. Do the pads just need to fully bed into the rotors? I have about 200 miles on the pads now. <<

While there are lots of "cures" the only one that really works is going back to stock pads.

 
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Old Feb 16, 2004 | 08:37 AM
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Minzila
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Not true BlueMCS. Many choices of products to make the squeal go away and they all work. Sorry about the brief answer, I'm at work.
MB
 
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Old Feb 16, 2004 | 08:49 AM
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paulsminis
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Go to your local general auto parts place (TrakAuto, AutoZone, Advance, etc) and ask the counter guys. There are several types of stuff you can spray, brush on, or stick on to the back of the pads that will cease the squealing. I replaced the pads on my MCS with EBS Green pads and they gave out a very short squeal right just before the car came to a stop. I got some spray on stuff. Yes, you do need to make very sure you do not get any of the stuff on the pads where they contact the disk, but that is not difficult to do. I do not remember the name of the substance but it did the job.

The stock MINI pads have a dampening material on the back of the pads where the piston contacts them that stops the squeal. You ought to be able to get this quieted down with very little effort.

Cheers,

Paul
 
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Old Feb 16, 2004 | 08:50 AM
  #6  
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Mintex pads squeal. Thats what they do.

I had some on my old GTI and they squealed all the time. It sucked b/c it made it sound like i need new brakes, but the tradeoffs were less brake fade, better stopping, and the reason i bought them: less brake dust!

so you make tradeoffs.

If homeboy's recipe for curing the squealing works, i'd say you have a winner on your hands!
 
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Old Feb 16, 2004 | 08:56 AM
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I'm trying to tell you guys, it's not a homeboy's recipe. Many products will do this job. I don't care what kind of pads you're using, and it's very easy.
MB
 
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Old Feb 16, 2004 | 08:57 AM
  #8  
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>>While there are lots of "cures" the only one that really works is going back to stock pads.
>>

I won't accept that. I always replace stock pads with mintex or ebc and never have squeal.
 
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Old Feb 16, 2004 | 09:01 AM
  #9  
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I guess i'll be making another trip to Pepboys.
 
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Old Feb 16, 2004 | 09:18 AM
  #10  
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How about stock breaks squeling? I can't imagine I'm at the wear limit already at 26K miles?
 
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Old Feb 16, 2004 | 09:46 AM
  #11  
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Yes you just need anti-squeal copper paste to go behind the pads and it does the trick, you're not doomed to use only the stock pads.
 
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Old Feb 16, 2004 | 09:47 AM
  #12  
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I know that Mintex brakes tend to squeal, but I do have one helpful suggestion.

Sometimes people are too easy on their brakes, especially if you always downshift and use engine braking to slow down to stoplights. By doing this, you can cause the pads to glaze over and lose some of their grip, causing the squealing.

An easy, no-cost "fix" is to get out there and make a couple purposeful really hard stops. You can also do this in reverse if necessary. This should grind off the glazed surface and can eliminate the squealing for a while.
 
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Old Feb 16, 2004 | 09:49 AM
  #13  
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My stock brake pads started squeeling the day before I got my pulley done. That was about 5k miles ago. I'll see if the dealership will replace them under that service agreement. Maybe they have to have a certain amount left before they'll do it for free...does anyone know how much pad they're looking for?
 
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Old Feb 16, 2004 | 09:52 AM
  #14  
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ofioliti
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From: Always curious ...
I have stock brake pads with ~3K miles on them. They squeek sometimes but only when turning. What's up with that?
 
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Old Feb 16, 2004 | 02:05 PM
  #15  
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>>I'm trying to tell you guys, it's not a homeboy's recipe. Many products will do this job. I don't care what kind of pads you're using, and it's very easy.
>>MB

what's "a homeboy's recipe."????

its not a title, its just the way i talk. i was calling whoever came up with an answer "homeboy".... i wasn't insinuating a jerry-rig.

LoL, "a homeboys recipe"...... pffft!
 
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Old Feb 16, 2004 | 02:18 PM
  #16  
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Minzila
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I believe it was YOU, ABTsportsline, that came up with the term "homeboy's recipe". I was just trying to help d2mini with his problem. I see you're new to this site. We try to help each other by sharing information. If this concept is strange to you, maybe you should take your insults elsewhere. pfffftt to you too! I could be wrong, but I think the term is jury-rig. The way you write, it's hard to tell when I'm being insulted. BTW, you need to switch to Slang 2.0, "homeboy" was replaced with "homey" about a decade ago.
MB

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Old Feb 16, 2004 | 03:00 PM
  #17  
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Ok, guys, thanks for the help.
I may even try this tonite if I have time. :smile:
 
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Old Feb 16, 2004 | 07:17 PM
  #18  
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I did it!
I got some blue goopy brake squeal stuff and put that on the back of the pads. I also picked up some caliper lube and applied it to the pins that you unscrew and to the prongs on the back of the front calipers. Took it for a drive around the block when done and it's quiet as a mouse! Hopefully it will last. :smile:
Thanks!
 
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Old Feb 16, 2004 | 07:44 PM
  #19  
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Way to be. Good results are wonderful.
 
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Old Feb 16, 2004 | 07:49 PM
  #20  
SB's Avatar
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I liked Yucca's idea.

"Oh, so you want to squeel. Take this!!" <slams the brake pedal to the floor>
 
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Old Feb 16, 2004 | 08:29 PM
  #21  
d2mini's Avatar
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haha, actually I tried that early on....no worky.
 
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