Throw back bearings making NOISE AGAIN

Modshack · 10-07-2009, 09:40 AM

Quote:

Originally Posted by Blown32

I"ve never heard any manual trans make that loud of a noise in neutral with the clutch pedal fully released unless a bad bearing?

Quite normal, especially with a flywheel that isn't weighted correctly or damped like a dual mass set-up. It's common knowledge that installing a light(er) flywheel will result in increased gear rattle.

Blown32 · 10-07-2009, 12:14 PM

Quote:

Originally Posted by Modshack

Quite normal, especially with a flywheel that isn't weighted correctly or damped like a dual mass set-up. It's common knowledge that installing a light(er) flywheel will result in increased gear rattle.

So what your saying is a heavy flywheel dampens the gear sound?The lighter the wheel the more gear sound?

kdo2milger · 10-07-2009, 12:20 PM

my clutch throw-out bearing rattles too...i had the same issue in my BMW in Germany, it rattled like crazy, i took it to a german bmw dealership and the maint. supervisor told me it was normal...

i thought that to be odd because ive driven manuals for many many years and these are the first two cars ive ever experienced this on...

Modshack · 10-07-2009, 04:36 PM

Quote:

Originally Posted by Blown32

So what your saying is a heavy flywheel dampens the gear sound?The lighter the wheel the more gear sound?

Yes.....I've had lots f Audi buddies replace their heavy dual mass flywheels with solid billet lightweight versions only to get LOTS of gear rattle..
\
The break point on at the audi's, when putting in a new (one piece) flywheel seems to be 17lb. That or heavier and the noise is minimal, a 12lb aluminum will rattle your fillings..

Blown32 · 10-07-2009, 06:51 PM

Quote:

Originally Posted by Modshack

Yes.....I've had lots f Audi buddies replace their heavy dual mass flywheels with solid billet lightweight versions only to get LOTS of gear rattle..
\
The break point on at the audi's, when putting in a new (one piece) flywheel seems to be 17lb. That or heavier and the noise is minimal, a 12lb aluminum will rattle your fillings..

Okay thanks!Makes sense.

10-07-2009, 12:20 PM	#3 (permalink)
kdo2milger OG Priesthood Join Date: Feb 2009 Location: Fargo, ND Posts: 17,859 Drives: NISMO T Rep Power: 60	my clutch throw-out bearing rattles too...i had the same issue in my BMW in Germany, it rattled like crazy, i took it to a german bmw dealership and the maint. supervisor told me it was normal... i thought that to be odd because ive driven manuals for many many years and these are the first two cars ive ever experienced this on... __________________ Project *NISMO*

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