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Brembo Rear Caliper extra part?

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Old 11-30-2008, 12:07 PM
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Brembo Rear Caliper extra part?

So my friend Joel and I were switching out the rotors on my '06 STI yesterday. When we took the rear calipers off, there was a piece bolted into the same holes as the caliper on the back side. It looked like a round counter-weight of some kind. It wasn't connected to anything that we could see. Does anyone know what that piece is for?
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Old 11-30-2008, 12:22 PM
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pics....
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Old 11-30-2008, 08:27 PM
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Haha next time i have my caliper and rotors in pieces i'll remember to take a pic.
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Old 11-30-2008, 08:30 PM
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well if nothing was attached to it.. then dont attach anything to it...
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Old 12-01-2008, 07:25 AM
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It's a harmonic dampener and it's there for a reason.
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Old 12-01-2008, 09:31 AM
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Thanks for the info Paul. Being an engineer, i have to ask, how does it function?
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Old 12-02-2008, 01:24 PM
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Originally Posted by Paul@dbtuned
It's a harmonic dampener and it's there for a reason.
Yup.
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Old 12-02-2008, 03:49 PM
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Originally Posted by PaulSTI
Thanks for the info Paul. Being an engineer, i have to ask, how does it function?

MA = Name:  119px-Angle_Symbolsvg.png
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Size:  1.4 KBDangle.












The mass of the *** equals the angle of the dangle!!







BTW, Volvo looooved putting various masses on their cars; the 740/760 models had almost 30 pounds of dampening mass scattered all over the chassis.
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Old 12-03-2008, 10:19 AM
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Originally Posted by PaulSTI
Thanks for the info Paul. Being an engineer, i have to ask, how does it function?
It offsets certain vibrations which cause noise and... erm... vibration to be felt/heard through the chassis and brake pedal. Seems fairly straight forward. Not trying to be rude, but the way.
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