Clutch noise - Curvy. - Page 3 - SV650.org

Bibio · 17-09-13, 09:55 PM

it's the thrust bearing under the spring housing. if that went though you would know about it as it would rattle like a good one and have loads of play in the lever.

Red Herring · 17-09-13, 10:05 PM

As a general guide you tend to notice clutch issues when you pull the lever in. This compresses the clutch springs and releases the pressure on the plates, allowing them to "rattle" and the inner and outer baskets to rotate in relation to each other. It also puts pressure on the release bearing. If you have a broken plate, or a knackered bearing, you will hear and feel it.

If on the other hand it is quiet when the clutch is pulled in, and the noise is when you release it then this tends to suggest gearbox as the inner basket is now turning and this is connected to the input shaft, and even with the gearbox in neutral all the various gears will be spinning on their shafts.

andrewsmith · 18-09-13, 04:26 AM

So shredded gearbox RH?

sent from the shredded wheat factory

Red Herring · 18-09-13, 07:32 AM

I'd want to hear this rattle/clunk before making that call. Have you changed the oil recently, was there anything nasty in there? My Hornet gearbox with over 50k hard miles on it makes quite a whirl in neutral but I wouldn't describe it as a rattle or knock.
I take it this noise is when stationary so we can eliminate chain etc...?

andrewsmith · 18-09-13, 11:53 AM

Here is a video of the noise. Its only at idle

http://youtu.be/eJ0umEZJQa4

Bibio · 18-09-13, 12:05 PM

i don't hear anything unusual. if anything i hear a slight CCT/tappet noise.

rapidgaz · 18-09-13, 01:13 PM

I can hear the slight noise change, but my 2500 miles old sv does it and most cars do it. Sounds pretty normal to me.

andrewsmith · 18-09-13, 07:06 PM

Quote:

Originally Posted by Bibio

i don't hear anything unusual. if anything i hear a slight CCT/tappet noise.

Well thats due again next year!
And the rear CCT will be getting changed at some point

17-09-13, 09:55 PM	#21
Bibio Member Mega Poster Join Date: Jul 2008 Location: here as devil's advocate Posts: 11,569	Re: Clutch noise - Curvy. it's the thrust bearing under the spring housing. if that went though you would know about it as it would rattle like a good one and have loads of play in the lever.

17-09-13, 10:05 PM	#22
Red Herring Member Mega Poster Join Date: Dec 2007 Posts: 2,708	Re: Clutch noise - Curvy. As a general guide you tend to notice clutch issues when you pull the lever in. This compresses the clutch springs and releases the pressure on the plates, allowing them to "rattle" and the inner and outer baskets to rotate in relation to each other. It also puts pressure on the release bearing. If you have a broken plate, or a knackered bearing, you will hear and feel it. If on the other hand it is quiet when the clutch is pulled in, and the noise is when you release it then this tends to suggest gearbox as the inner basket is now turning and this is connected to the input shaft, and even with the gearbox in neutral all the various gears will be spinning on their shafts.

18-09-13, 04:26 AM	#23
andrewsmith Member Mega Poster Join Date: Apr 2010 Location: Newcastle upon Tyne, Just south of salad dodging country Posts: 7,750	Re: Clutch noise - Curvy. So shredded gearbox RH? sent from the shredded wheat factory __________________ RIP Reeder 20/07/1988 - 21/03/2012. Always missed squire!!! Every year we meet old friends, gain some new ones, lose old ones and you always remember them all. “Live as if you were to die tomorrow. Learn as if you were to live forever.” Mahatma Gandhi

18-09-13, 07:32 AM	#24
Red Herring Member Mega Poster Join Date: Dec 2007 Posts: 2,708	Re: Clutch noise - Curvy. I'd want to hear this rattle/clunk before making that call. Have you changed the oil recently, was there anything nasty in there? My Hornet gearbox with over 50k hard miles on it makes quite a whirl in neutral but I wouldn't describe it as a rattle or knock. I take it this noise is when stationary so we can eliminate chain etc...?

18-09-13, 12:05 PM	#26
Bibio Member Mega Poster Join Date: Jul 2008 Location: here as devil's advocate Posts: 11,569	Re: Clutch noise - Curvy. i don't hear anything unusual. if anything i hear a slight CCT/tappet noise.

18-09-13, 01:13 PM	#27
rapidgaz Member Join Date: Jul 2013 Location: manchester Posts: 402	Clutch noise - Curvy. I can hear the slight noise change, but my 2500 miles old sv does it and most cars do it. Sounds pretty normal to me.

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