19 replies to this topic

[DonutsDemise]

How much noise does your's make? I just noticed a slight noise coming from mine, not the sound of one that has failed, just a tiny bit of rattling when the clutch is engaged and the car is idling. I can only hear it when the car is parked, my door is open, and there isn't much ambient noise other than the idling engine. It's not loud or alarming but you know when you start thinking a noise is bad and then it just runs away in your mind that it's going to be a major job and you get carried away? I hate that. Maybe it's all in my head. Not asking for a diagnosis, just comparisons. If I recorded the noise you probably wouldn't even be able to hear it over the motor running.

BTW it's a Sachs release bearing from eeuroparts (and I have an external slave cylinder and a single mass flywheel, not sure if the part is different for the newer ones with the internal slave and the dual mass flywheel)

[32768RS]

Mine makes a slight noise too under the same conditions (idle, trans in neutral, clutch engaged) but I'm not sure if it is the throwout bearing or some play in one of the bearings on the input shaft in the trans. I was a little worried when I first heard it but it hasnt gotten any worse and it doesnt sound like a bearing on the way out.

Joe

[DonutsDemise]

32768RS, on 13 July 2009 - 08:29 PM, said:

Mine makes a slight noise too under the same conditions (idle, trans in neutral, clutch engaged) but I'm not sure if it is the throwout bearing or some play in one of the bearings on the input shaft in the trans. I was a little worried when I first heard it but it hasnt gotten any worse and it doesnt sound like a bearing on the way out.

Joe

if it sounds like a not so badly knocking engine (oxymoron?) in those conditions I am almost positive that it's the release bearing. it stops when I hit the clutch pedal. if it happens to you too and it's not gone bad then that makes me happy!

[32768RS]

DonutsDemise, on 13 July 2009 - 08:41 PM, said:

if it sounds like a not so badly knocking engine (oxymoron?) in those conditions I am almost positive that it's the release bearing. it stops when I hit the clutch pedal. if it happens to you too and it's not gone bad then that makes me happy!

Yeah that is the sound and it does stop when I hit the clutch pedal. I first noticed it about 4months ago and the noise hasnt changed any. I didnt think it was the release bearing becuase I installed it new in October and the trans has 170K+ on it. Either way I dont worry about it anymore.

[DonutsDemise]

funny coincidence, my trans has 166k miles on it and the release bearing+clutch assembly only has 10k miles, it was new in September

good stuff though

[Big Will]

I have the exact same noise in my car when the car is in neutral and my foot is not on the clutch.

It's done it pretty much since the car became a stick shift. I suspect a bad release bearing although I bought a brand new one from eEuroparts (Sachs) when doing the swap. Maybe it was a bad batch.

[DonutsDemise]

Big Will, on 13 July 2009 - 10:19 PM, said:

I have the exact same noise in my car when the car is in neutral and my foot is not on the clutch.

It's done it pretty much since the car became a stick shift. I suspect a bad release bearing although I bought a brand new one from eEuroparts (Sachs) when doing the swap. Maybe it was a bad batch.

well it's not loud though so it doesn't sound like it failed, everything feels completely normal too. i just hope it's not failing because that's a hell of a lot of hours of work for a 45 dollar part after 10000 miles. at least I have a bicycle now for back up i'm not worried though.

what's weird is i thought i heard it after i completed my engine swap/clutch job etc. last year, then it went away, then i heard it today after driving my car 60 miles, and i drove my car to work at 4:30pm and didn't hear it when i turned it on...

[Big Will]

Mine isn't loud either and doesn't feel odd in any way. There is no chatter in the take-up of the clutch when engaging gears or anything it's just audible outside the car when you have it in neutral if you were standing next to it.

[DonutsDemise]

Big Will, on 14 July 2009 - 02:04 AM, said:

Mine isn't loud either and doesn't feel odd in any way. There is no chatter in the take-up of the clutch when engaging gears or anything it's just audible outside the car when you have it in neutral if you were standing next to it.

hmm, i hope i won't have to take up a warranty claim with eeuroparts because i really don't want to get in there with a floor jack and jack stands again

[32768RS]

I'm not sure if mine did it from the start or not. I didn't notice the noise until the Spring when I had my window rolled down more often. Its most noticeable when parked next to another car/object for the sound to reflect off of. Its barely audible when if there is nothing around to reflect the sound. I don't recall what brand mine was, I am assuming it was Sachs as well. I bought it from Waltrip so I'm sure it's the right one. It is a bit different than the used one I got with my swap kit.
Here are a couple pics comparing the two.

[DonutsDemise]

yeah that's the sachs one, i think it's the oem manufacturer. the fact that multiple people have the same sound without problems got rid of my worries. thanks for the input!

[Chilled Man]

I have the same thing on my R and it was brand new last year.

I put a new one in the C70 didnt hear anything but I only drove it 3k .

and I put a new one in the XC70 but I havent drvien that yet.

[Big Will]

Yep - the Volvo one is a Sachs one - same thing. When I got my M58 it came with the original release bearing stuck on it and it said Volvo/Sachs so I was comfortable getting the Sachs one from eEuroparts.

Someday when I actually bother to put in a proper turbo flywheel, I'll replace the bearing with a Genuine Volvo one.

[Flukey]

32768RS, on 13 July 2009 - 08:29 PM, said:

Mine makes a slight noise too under the same conditions (idle, trans in neutral, clutch engaged) but I'm not sure if it is the throwout bearing or some play in one of the bearings on the input shaft in the trans. I was a little worried when I first heard it but it hasnt gotten any worse and it doesnt sound like a bearing on the way out.

Joe

Joe, just so ya know, it is easy to differentiate noise fron the to bearing and the input shaft bearing. The to bearing, if is bad, makes noise when the clutch pedal is depressed. And the input bearing makes noise, if it is bad,
when the pedal is up. That is because the input shaft stops spinning when ya press the clutch pedal down.

[Big Will]

That's really good info^ Thanks!

So it sounds like I have a bad input shaft bearing

[32768RS]

Flukey, on 15 July 2009 - 12:56 PM, said:

Joe, just so ya know, it is easy to differentiate noise fron the to bearing and the input shaft bearing. The to bearing, if is bad, makes noise when the clutch pedal is depressed. And the input bearing makes noise, if it is bad,
when the pedal is up. That is because the input shaft stops spinning when ya press the clutch pedal down.

Thats what I originally thought too, but got confused by what Donut & Big Will were saying. I actually think you're right that it is a bearing on the input shaft; I tried to wiggle the TO fork to see if the noise changed at all, it had no effect. The noise is somewhat intermittent as well, I tried depressing and releasing the clutch pedal several times and it doesnt always make the sound. I still dont think its that big of an issue, it just sounds like a worn bearing with some play in it. I wouldn't say its a bad bearing, its still doing its job. It sounds nothing like one that has galling and is grinding or seizing. I had that issue my old Civic. I might try and put it up on ramps and figure out where the noise is coming from. I think it may be the bearing at the end of the input shaft, at the back of the case, not the one at the front.

Joe

[DonutsDemise]

Big Will, on 15 July 2009 - 02:28 PM, said:

That's really good info^ Thanks!

So it sounds like I have a bad input shaft bearing

you have it opposite, you said when you're foot is "not on the clutch" you have the noise (as in when the clutch is engaged). if the clutch was disengaged (and you're foot was holding down the clutch) then it would be the input shaft bearing. you just have the same annoying non-problem noise we have.

[Big Will]

Yes you're right - I just have trouble with the concept of the clutch being "engaged" when the car is in neutral.

[32768RS]

DonutsDemise, on 15 July 2009 - 06:25 PM, said:

you have it opposite, you said when you're foot is "not on the clutch" you have the noise (as in when the clutch is engaged). if the clutch was disengaged (and you're foot was holding down the clutch) then it would be the input shaft bearing. you just have the same annoying non-problem noise we have.

No Flukey is correct. If the clutch is engaged (foot off pedal) and the trans is in neutral, the trans input shaft and TO bearing are spinning. Basically if the engine is spinning, the TO bearing is turning as well, because it is almost always in contact with the fingers of the pressureplate. If the clutch is disengaged (foot holding pedal down), the TO bearing is still spinning but the input shaft to the trans is not.

[Flukey]

32768RS, on 15 July 2009 - 07:58 PM, said:

No Flukey is correct. If the clutch is engaged (foot off pedal) and the trans is in neutral, the trans input shaft and TO bearing are spinning. Basically if the engine is spinning, the TO bearing is turning as well, because it is almost always in contact with the fingers of the pressureplate. If the clutch is disengaged (foot holding pedal down), the TO bearing is still spinning but the input shaft to the trans is not.

I'am glad you understand the concept 32768RS. And to further pursue this, you are correct in stating that the to
bearing is also spinning when the trans is in neutral and the clutch is engaged because of the contact with the
fingers on the pressure plate. However, in a perfect scenario, the to bearing should NOT come in contact with the
pressure plate fingers. The main reason that to bearings can wear out pre-maturely is because the driver either sits
at traffic lights with their foot pressing on the pedal or simply toeing the pedal all the time.