Clutch Chatter - ACT Street Clutch
Feb 7, 2008, 01:50 PM
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Clutch Chatter - ACT Street Clutch
Being the perfectionist that I am, I'm seeing if I might be able to eliminate my clutch chatter in any way.
I just installed my ACT Street clutch two weeks ago and I've only got about 1000 miles on her, probably less. Anyhow, when I'm in engaged in first gear around 1500 rpms, I notice a slight chatter coming from the drivers side wheel area. This is on and off and only happens a couple times a day for me.
Is there any way I can remove the chatter? And is this chatter going to hurt my engine in any sort of way? The vibration is pretty aparent, not huge, but it's there. I was thinkin it might be my crank pully causing this, but I highly doubt it considering I hadn't noticed this chatter before the clutch replacement.
By no means is this a huge concern for me, I know you'll get some chatter with a new clutch, especially an aftermarket one, but I like things being perfect and rattle free....
Thanx,
- Steve
I just installed my ACT Street clutch two weeks ago and I've only got about 1000 miles on her, probably less. Anyhow, when I'm in engaged in first gear around 1500 rpms, I notice a slight chatter coming from the drivers side wheel area. This is on and off and only happens a couple times a day for me.
Is there any way I can remove the chatter? And is this chatter going to hurt my engine in any sort of way? The vibration is pretty aparent, not huge, but it's there. I was thinkin it might be my crank pully causing this, but I highly doubt it considering I hadn't noticed this chatter before the clutch replacement.
By no means is this a huge concern for me, I know you'll get some chatter with a new clutch, especially an aftermarket one, but I like things being perfect and rattle free....
Thanx,
- Steve
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Feb 7, 2008, 03:04 PM
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Yeah I'm not sure you can get rid of it. I just don't want my engine to vibrate too much and cause some real big problems down the road.
Regardless, I can live with a little chatter every now and again.
Thanks for the info guys, it's been helpful.
Regardless, I can live with a little chatter every now and again.
Thanks for the info guys, it's been helpful.
Feb 7, 2008, 03:04 PM
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I have the same clutch with zero chatter. I thought chatter came from multi disc clutches? Could the resurfaced flywheel be an issue Chris since you asked? Either way pm ACTman he is extremely knowledgeable and helpful.
Last edited by dafoe69; Feb 7, 2008 at 03:11 PM.
Feb 7, 2008, 05:20 PM
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I do not see how the single plate ACT clutch chatters at all. There will be some throwout bearing noise on deceleration though.
I have no chatter with my ACT, quiet as the stock clutch.
I have no chatter with my ACT, quiet as the stock clutch.
Feb 7, 2008, 08:10 PM
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There are a few different issues being discussed here and they have been covered numerous times on here.
You should not be getting chatter on a clutch with an organic disc like the HDSS which is much like the OE organic disc but beefier. In the remote case you do get chatter it would be because there was oil or grease contamination on the disc either from a leaking rear main seal (not likely) or an installer with greasy hands.
Chatter is common with the use of puck style discs, which the HDSS or XTSS kits aren't.
gsrboi80, what you are describing is coming from the reduced mass of the flywheel, not the clutch. The extra weight of the flywheel helps to dampen the noise you're hearing which is called torsional vibration. Torsional vibration is present at all times but is dampened by the springs on the clutch disc (which is why they are on the disc, not for smooth engagement) and the heavier weight of the factory flywheel. The same priinciple is used by Porsche, BMW and Nissan on the 350Z/G35 with a heavy dual mass flywheel. Torsional vibration is audible and not felt, it also the same noise sometimes described as the "coffee grinder" sound. A lightened flywheel WILL NOT reduce the noise.
To the OP there is a possibilty that the engagement may take a bit of getting used to and require a bit more throttle input to get the car underway smoother. Also if the flywheel was warped and not resurfaced properly the clutch would start slipping because of a lack of surface area for the disc to make contact with. Noises are hard to diagnose even when you're there to hear them in person, and virtually impossible if you're at a keyboard trying to find the answers. If you're really concerned about it take the car back to the place it was installed and have take it for a spin. If the problem persists and you think it's the clutch, shoot me a PM and we can take a look at it.
You should not be getting chatter on a clutch with an organic disc like the HDSS which is much like the OE organic disc but beefier. In the remote case you do get chatter it would be because there was oil or grease contamination on the disc either from a leaking rear main seal (not likely) or an installer with greasy hands.
Chatter is common with the use of puck style discs, which the HDSS or XTSS kits aren't.
gsrboi80, what you are describing is coming from the reduced mass of the flywheel, not the clutch. The extra weight of the flywheel helps to dampen the noise you're hearing which is called torsional vibration. Torsional vibration is present at all times but is dampened by the springs on the clutch disc (which is why they are on the disc, not for smooth engagement) and the heavier weight of the factory flywheel. The same priinciple is used by Porsche, BMW and Nissan on the 350Z/G35 with a heavy dual mass flywheel. Torsional vibration is audible and not felt, it also the same noise sometimes described as the "coffee grinder" sound. A lightened flywheel WILL NOT reduce the noise.
To the OP there is a possibilty that the engagement may take a bit of getting used to and require a bit more throttle input to get the car underway smoother. Also if the flywheel was warped and not resurfaced properly the clutch would start slipping because of a lack of surface area for the disc to make contact with. Noises are hard to diagnose even when you're there to hear them in person, and virtually impossible if you're at a keyboard trying to find the answers. If you're really concerned about it take the car back to the place it was installed and have take it for a spin. If the problem persists and you think it's the clutch, shoot me a PM and we can take a look at it.
