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2008 VQ35HR flywheel tick?

Old Mar 24, 2014 | 06:00 PM
  #1  
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Default 2008 VQ35HR flywheel tick?

Hey guys, I recently started hearing a ticking sound while shifting from 1st to 2nd gear. The problem seems to go away when I slowly press the clutch but if I press the clutch fast (not stomping on it, just daily street driving speed). I hear ticking sound which kind of sounds like flywheel tick and I feel the car jerk. There are no issues when shifting into rest of the gears. I know that Z and G flywheels are loud but I have noticed that at idle the flywheel noise is louder than before, which goes away when I press the clutch without shifting into 1st gear.

If anybody has had similar issue or know what is going on, it'd be nice to shed some light into what I need to do fix it.

Thanks in advance!
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Old Mar 24, 2014 | 11:53 PM
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I have the same issue with changing from 1st to 2nd gear.
There is a lot of mechanical noise coming from underneath and when pushing the clutch it feels jerky.
I must say it is reduces when changing gear at some higher rpm's.

For the rest clutch is working fine, no slip etc?
My clutch is ok so i stopped worrying and wait when it's time to change for a new aftermarket one without the noises
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Old Mar 25, 2014 | 03:09 AM
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Originally Posted by Wietse350Z
I have the same issue with changing from 1st to 2nd gear.
There is a lot of mechanical noise coming from underneath and when pushing the clutch it feels jerky.
I must say it is reduces when changing gear at some higher rpm's.

For the rest clutch is working fine, no slip etc?
My clutch is ok so i stopped worrying and wait when it's time to change for a new aftermarket one without the noises
Ya rest of the clutch functions just fine. No issues taking off, rev matching, heel toe, it's just from 1st to 2nd. Yes you're right there is a lot of mechanical noise. I have a short shifter installed from previous owner so don't know which brand but I didn't that would have any effects since gear is still engaging without grinds or anything.
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Old Mar 25, 2014 | 01:08 PM
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Like i said, try changing from 1st gear with some more rpm, for me the noise reduces.
Think it has something to do with the centrifugal forces on the components.

Maybe someone can explain the flywheel of the HR engines?
Is this a dual mass style? And how this this work/function?
There is no clear picture of it in the manual.
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Old Mar 25, 2014 | 01:14 PM
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The oem is dual mass....
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Old Mar 25, 2014 | 01:32 PM
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Yes, dual mass flywheel (DMF). You might Google self adjusting clutch. When worn they "rock and clock", and then there's

THIS:

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Old Mar 25, 2014 | 01:55 PM
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Thx for the info, so by this OP (and me as well) can foresee a clutch job coming?
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Old Dec 24, 2014 | 05:44 AM
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Just digging this one up as my question is regarding the clutch.

I have been reading the web about the dual mass flywheel's function etc.
Now i am wondering when replacing the DMF on the Z will increase gear train rattle.
This can mainly be avoided by keeping the rpm's up, but anyway this is not healthy i guess?
The engine's crankshaft has it's torsional vibrations as any crankshaft has, and i remember on my previous car (Golf VR6) it has a vibration dampener which you can't remove as this is the only part attached on the crankshaft that absorbs the vibrations.
If it would be removed you might end up with serious engine damage.

Does this not apply on the VQ engines?
I am a bit afraid of removing the DMF and with that, removing the only torsional vibration damper from the crankshaft and overtime destroy the bearings...

Any thoughts on this?
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