Chattering coming from clutch, or tranny???

[-DSM2NR-]

There's some kind of strange noise coming from either my clutch or tranny as soon as I press the clutch. The noise is there even if I barely tap the clutch (we're talking about a slight 5mm move). The noise sounds like something is rubbing together. It's not really loud but obvious.

The tranny was rebuilt about 5000 miles ago and the car has a Centerforce Pressure plate with a Clutchnet 6 puck clutch.


What could be the problem? Should I worry?

 

[blcknspo0ln]

Did you replace your TOB?

 

[-DSM2NR-]

The previous owner installed the clutch actually so I'm not really sure........

 

[blcknspo0ln]

That would be my first inclination. I'm afraid that you're going to have to take it to a mechanic to get it diagnosed, seeing how it is very difficult to describe a sound. Ultimately, that chatter may turn into something worse and ruin your investment. Goodluck and be careful

 

[-DSM2NR-]

I've heard that 6puck clutches tend to do this. Is there any truth to this? And why are 6puck clutches not recommended for DSMs?

 

[Drift_SM]

TOB

Throw out bearing.

mine does the same.

 

[-DSM2NR-]

TOB

Throw out bearing.

mine does the same.

is this a bi*** to replace and would it cause major problems if I don't replace it?

 

[diamondgst]

it requires the trans to come out

 

[NOFX0617]

Yeah its a bit of a pain I am just finishing up doing mine....I thought it might have been my disk but it ended up being the TOB and it looked like someone set a grenade on it....I would say get it checked out before it goes out so your car is not running on your terms instead of having it break at a time when its very inconvienient.

 

[-DSM2NR-]

it requires the tranny to come out??? Are you serious?WTF You don't have to remove the tranny when you're replacing clutches do you?

So this is a serious problem then? Could it be anything less serious perhaps?

 

[blcknspo0ln]

it requires the tranny to come out??? Are you serious?WTF You don't have to remove the tranny when you're replacing clutches do you?

So this is a serious problem then? Could it be anything less serious perhaps?

I'll keep my snickering to myself Yes you will need to remove the transmission. Goodluck and take it to a good mechanic

 

[diamondgst]

it requires the tranny to come out??? Are you serious?WTF You don't have to remove the tranny when you're replacing clutches do you?

So this is a serious problem then? Could it be anything less serious perhaps?

yes, the flywheel is bolted to the crank (engine) and the clutch disc and presure plate bolt to the flywheel the transmision shaft goes in the clutch splines, so yes the trans DEFENTLY has to be removed when doing clutch install i've done 4 in the last year between my car and my friends...

and no its deffently clutch chatter from the 6 puck or the TOB is going/gone out...

and no 6 puck are not "not" recommended they ARE a good clutch and grab strong

 

[-DSM2NR-]

ahhh crap. I already did a clutch swap on a 3000gt myself. Needless to say, it was a bi***!!! I did have to drop the tranny but I didn't have to take it off completly. I just disconnected it to get to the clutch, removed the clutch, and replaced it.
Is it the same case with DSMS? Or do you literally mean that the tranny has to be COMPLETLY removed?

What if it's clutch chatter? Does that mean that the clutch is F@cked or something? I've heard that people who had bad throw out bearings heard the noise while the clutch was depressed not the other way around...........

 

[prplhz96]

The x-fer case and trans have to be completely removed. It is not as hard as a job as you are making it sound. There is no one on this site that can tell you that it is clutch chatter or tob, the only way to figure out the problem is to drop the trans and give it a good once over. Most "bad" tob that I have heard make noise while the clutch pedal is not depressed, and when the pedal is depressed the noise goes away. At least you have a project to keep you busy this weekend

 

[-DSM2NR-]

yeah, as if I don't have anything better to do

how can removing a tranny be easy???

What can I use to raise the heavy tranny back up after the job is done? I don't have a engine lift or any other "special" tools a mechanic might have.

this is getting more frustrating that I anticipated it to be. This would've never happened if the previous owner would've done it correctly

Are there any special tools I need to lift the tranny back up. Note that my house has a single door garage and I use simple jack stands to raise the car

Taking the car to a mechanic isn't an option since I don't have enough money right about now

 

[prplhz96]

To lift the trans into place, I lay it on my chest slide under the car and lift. I guess that might not to too easy for some, just grab a buddy and have him give you a hand. As far as removing a trans. being easy, practice makes perfect. It is a very basic job IMO, not very involved at all, just some elbow grease and a case of beer. When you pull the trans, dont forget to check out the flywheel. If the trans was replaced recently like you said it was, hopefully the prior owner had it resurfaced. If not, now is a great time to get it done(i have seen it happen more than once). Good luck

 

[-DSM2NR-]

thanks for the help. What still confuses me though is the fact that every "bad TOB" thread that I've read about deals with the car making noises while the clutch is depressed and not the other way around.
In my case there is absolutly no noise coming from the tranny or the clutch if the clutch isn't engaged WTF.
Perhaps the clutch still needs some break in time? Or maybe I should change the tranny fluid?

 

[-DSM2NR-]

I just contacted the previous owner and he told me that the throw out bearing was replaced with a new OEM one when the clutch was replaced.

And the tranny fluid is a mix of 90w gear oil and GM synchromesh...................

What now?

 

[ericbev]

Clutch chatter is a common annoyance when using a metallic/puck style clutch in a street application. Does it stop after a bit of driving? Does it only appear when you are disengaging it? Get us a small video if at all possible.

Since you didnt do the install yourself there are quite a few uknowns.

 

[-DSM2NR-]

Clutch chatter is a common annoyance when using a metallic/puck style clutch in a street application. Does it stop after a bit of driving? Does it only appear when you are disengaging it? Get us a small video if at all possible.

I'll have to check for that. It's hard to tell since the 3" exhaust is loud as hell. The HKS cams aren't making things easier either

I'll try to get a video posted within the next day or two

 

[blkGSTspider]

Clutch chatter is a common annoyance when using a metallic/puck style clutch in a street application. Does it stop after a bit of driving? Does it only appear when you are disengaging it? Get us a small video if at all possible.

Since you didnt do the install yourself there are quite a few uknowns.

Im having same kind of problem...
My clutch and flywheel replaced like 600 miles ago with ACT2100 and XACT flywheel..
It chatters when the clutch is not pressed when on idle or in gear. sometimes it disappears after driving..
is it the TOB?? TOB is only 600 miles on it...
I have Street disc..
http://www.dsmtuner.com/forums/showthread.php?t=226484

 

[prplhz96]

Im having same kind of problem...
My clutch and flywheel replaced like 600 miles ago with ACT2100 and XACT flywheel..
It chatters when the clutch is not pressed when on idle or in gear. sometimes it disappears after driving..
is it the TOB?? TOB is only 600 miles on it...
I have Street disc..
http://www.dsmtuner.com/forums/showthread.php?t=226484

The two of you guys need to BOTH drop your trannies and take a peek inside. You are flirting with a very expensive fix if you have a problem, and keep driving the cars. All in all it can be nothing, but it is not worth the chance taking.

 

[-DSM2NR-]

I tried getting a video but for some reason, everytime I record, the camera doesn't pick up the sound.

Like I said, the sound is only there when the clutch is pressed in. The TOB was replaced when the clutch was replaced. The flywheel wasn't resurfaced and it's a OEM unit. Maybe this is causing the problem?

 

[97ClipseDSM]

I tried getting a video but for some reason, everytime I record, the camera doesn't pick up the sound.

Like I said, the sound is only there when the clutch is pressed in. The TOB was replaced when the clutch was replaced. The flywheel wasn't resurfaced and it's a OEM unit. Maybe this is causing the problem?

If its more like a ticking noise coming near the timing belt side with the clutch pressed in, you might want to check your endplay of the crank. I know mine did the same thing on my gst before i got .035 of endplay and my motor went to shame. Not to scare you, but get it checked out if thats the case.

 

[diamondgst]

not to sound stupid, but how exactly do you check it? whats the procedure?