some help w/ gt3rs noise

[sticky]

although the question has been asked, i would like a little more info. when my clutch is DEPRESSED there is no noise. when i release the clutch it makes a rattle/grinding noise. sound like a throwout bearing. the car has 1800 miles on it and it seems to be getting worse. dealer says its normal because of the single mass flywheel. i dont understand because flywheels have no moving parts other than itself. only does it when its hot. if other rs owners could sit in their car and tell me theirs make noise then i would say its normal. just doesnt sound like german engineering.

[Loren]

Yes, that is normal. The GT3RS has a single mass flywheel - good for getting the revs up fast but noisy.

[lbp]

although the question has been asked, i would like a little more info. when my clutch is DEPRESSED there is no noise. when i release the clutch it makes a rattle/grinding noise. sound like a throwout bearing. the car has 1800 miles on it and it seems to be getting worse. dealer says its normal because of the single mass flywheel. i dont understand because flywheels have no moving parts other than itself. only does it when its hot. if other rs owners could sit in their car and tell me theirs make noise then i would say its normal. just doesnt sound like german engineering.

Mine rattles identically to what you have described, although that is not to say it should be considered "normal," my serviceing dealer says it is.

[sheim911rs]

That is a normal characteristic as others have stated. Both of mine behave that way.

[clord]

The rattle you hear is from the gearbox and is normal with a single mass flywheel. At idle the individual cylinder-fire pulses are passed through the flywheel to the gearbox (with the clutch engaged) and those pulses rattle the gear lash/play in the gear train. A dual mass flywheel effectively has a rubber(or otherwise) damper in it which smooths out the pulses and reduces the gear lash rattle. A dual mass flywheel is also heavier and, therefore, has more angular momentum, ie, spins up and down more slowly.

[KIMBO77]

Sounds exactly like the noises I have. I've become used to it and have heard another RS make the same noises while idling at a traffic light.

I'm now trying to get used to the creaks and squeaks from the roll cage. I don't understand why they have such a complicated roll cage with so many parts. Is there any way to reduce the creaks? WD40?

[sticky]

The rattle you hear is from the gearbox and is normal with a single mass flywheel. At idle the individual cylinder-fire pulses are passed through the flywheel to the gearbox (with the clutch engaged) and those pulses rattle the gear lash/play in the gear train. A dual mass flywheel effectively has a rubber(or otherwise) damper in it which smooths out the pulses and reduces the gear lash rattle. A dual mass flywheel is also heavier and, therefore, has more angular momentum, ie, spins up and down more slowly.

it sounds like no one really knows what is actually causing the noise. some say its the single mass flywheel. if anyone can post a pic. of said flywheel and show me how a flywheel makes this noise i might believe it. my experience with fly wheels tells me there are no moving parts on a flywheel to make this noise. this brings us to clords claim that its gearbx lash or rattle. doutbfull as it makes the noise with the car in gear, clutch engaged ( foot off clutch) while driving. that means there is tourque on the gearbox eliminating any lash or play. not lookin for a argument, just sounds as though most are speculating or its what their dealer told them.

[KIMBO77]

Mine doesn't make the noise while I'm moving. Only when not in gear.

[clord]

Sticky.... Please see my post above. It's not the flywheel making the noise, it's the lash in the gear train in the gearbox.

[sticky]

Sticky.... Please see my post above. It's not the flywheel making the noise, it's the lash in the gear train in the gearbox.

clord.... please c my post above. it makes the noise when in gear clutch engaged (foot off) while driving, therefor tourque is applied to the gearbox taking up any lash.