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07-25-2011, 02:16 PM | #26 |
Scooby Guru
Member#: 21145
Join Date: Jul 2002
Chapter/Region:
NESIC
Location: Not in my own time
Vehicle:2002 Enemy of Aku |
There is more going on here than just the way they drive. It's a combination of the clutch and flywheel.
There was an issue similar to this back in '02. OEM clutches were acting exactly the same way. Don't remember the exact cause, although I "heard" it was the wrong clutch disk, but Subaru did a factory recall onthe affected cars. Complete replacement of the clutch, pilot bearing and flywheel and the problem went away.
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03-29-2019, 09:21 AM | #27 |
Scooby Newbie
Member#: 473969
Join Date: Sep 2017
Location: Pittsburgh, PA
Vehicle:2006 WRX World Rally Blue |
I recently installed an ACT 6 puck sprung race clutch and I have extreme chatter trying to slip the clutch from a stop in 1st gear. The whole car shakes violently and sounds like a jackhammer under the hood.
I have always rev matched downshifting, but a time or 2 I didn't and re-engaging the clutch makes the car buck from the harsh engagement. Seems like this extreme chatter is normal for harsh engaging clutches. |
04-01-2019, 08:09 AM | #28 |
Scooby Newbie
Member#: 495329
Join Date: Dec 2018
Location: Mass
Vehicle:2014 WRX ISM |
I'm glad this mystery was solved 8 years later, thank you.
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12-24-2020, 06:17 PM | #29 |
Scooby Newbie
Member#: 473969
Join Date: Sep 2017
Location: Pittsburgh, PA
Vehicle:2006 WRX World Rally Blue |
Update:
Just replaced my 6 puck sprung clutch. I was surprised it only lasted 45K miles, but speaking on the phone with one of the friendly techs at ACT, he said I got a lot more miles than most. I bought their Prolight flywheel this time and threw in an OEM clutch. As for the clutch chatter, after several thousand miles, the clutch chatter was less and less, unless I was slipping the clutch on a hill. Then it was very violent. But for those who have never experienced a 6 puck clutch, don't be alarmed that the whole car shakes. They aren't meant to be slipped. |
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