6MT clutch spring rattle sound

Dave07997S · 02-01-2018, 11:57 AM

Well what I got out of this thread is that deansbimmer won't be helping the OP anytime soon with advice.

To deansbimmer, please don't let one thread derail you from your help. Believe me its greatly appreciated.

Dave

Scharbag · 04-07-2018, 03:32 PM

Curious if the OP figured out the issue...

BMWe92MeetM3 · 01-16-2019, 01:00 PM

Got My DMF and Clutch changed yesterday at a reputable indy shop specialized in BMW, when in first gear and slowly releasing the clutch the car makes that slight chatter noise like ta tatattata or something taping against something else and in reverse the same thing... Before I had the old MDF and Clutch that noise was louder and clunking noise back and forth...

But I still have that faint chatter and I am wondering if it is normal or not? but the theory of that is that I think that this is somewhat normal but not sure here is the explanation if you will ... The two wheels connect by a set of springs mounted circularly right?, and under load when the engine is pulling the car the two parts of the flywheel make a constant angle that is proportional to the torque, as you press down the clutch pedal, the flywheel is no longer loaded and those springs shoot the energy they had stored moving the second wheel back in angular alignement ( neutral degree) with the engine shaft that drives the primary side of the flywheel. These very powerful springs oscillate the second flywheel for a brief moment which you can hear ( chatter noise that I hear ) and that everyone here seem to hear as well. Since there are no shocks absorber like car suspensions the DMF reduces vibration coming from the engine which improves the ride and reduces wear in the drivetrain (including the clutch itself and gears) so I think it is normal but again if someone can explain better ...

02-01-2018, 11:57 AM	#45
Dave07997S Brigadier General 720 Rep 3,964 Posts Drives: 2020 Ford Mustang GT Join Date: May 2009 Location: El Segundo, CA iTrader: (1)	Well what I got out of this thread is that deansbimmer won't be helping the OP anytime soon with advice. To deansbimmer, please don't let one thread derail you from your help. Believe me its greatly appreciated. Dave __________________ 2020 Ford Mustang GT 6MT PP1 444rwhp (Sold)2013 M3 Coupe-MR/BLK ZCP, 2011 M3 Coupe-MR/Blk 2007 Porsche 997C2S Speed Yellow/Blk sport seats 2004 BMW M3 Imola/Blk
	Appreciate 4 Scharbag2620.50 mdm933.50 deansbimmer3748.50 BOOF-M34451.50 Quote

04-07-2018, 03:32 PM	#46
Scharbag Colonel 2621 Rep 2,138 Posts Drives: 2011 E92 M3 Join Date: Oct 2017 Location: Victoria iTrader: (0) Garage List 2011 BMW E92 M3 [0.00]	Curious if the OP figured out the issue... __________________ 2011 E92 M3 - 6MT, ZCP, ZF LSD, ESS G1, Some other goodies...
	Appreciate 0 Quote

01-16-2019, 01:00 PM	#47
BMWe92MeetM3 New Member 2 Rep 16 Posts Drives: 2008 E92 M3 perfect rock! Join Date: Nov 2018 Location: FL iTrader: (0)	Got My DMF and Clutch changed yesterday at a reputable indy shop specialized in BMW, when in first gear and slowly releasing the clutch the car makes that slight chatter noise like ta tatattata or something taping against something else and in reverse the same thing... Before I had the old MDF and Clutch that noise was louder and clunking noise back and forth... But I still have that faint chatter and I am wondering if it is normal or not? but the theory of that is that I think that this is somewhat normal but not sure here is the explanation if you will ... The two wheels connect by a set of springs mounted circularly right?, and under load when the engine is pulling the car the two parts of the flywheel make a constant angle that is proportional to the torque, as you press down the clutch pedal, the flywheel is no longer loaded and those springs shoot the energy they had stored moving the second wheel back in angular alignement ( neutral degree) with the engine shaft that drives the primary side of the flywheel. These very powerful springs oscillate the second flywheel for a brief moment which you can hear ( chatter noise that I hear ) and that everyone here seem to hear as well. Since there are no shocks absorber like car suspensions the DMF reduces vibration coming from the engine which improves the ride and reduces wear in the drivetrain (including the clutch itself and gears) so I think it is normal but again if someone can explain better ...
	Appreciate 0 Quote