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Old 09-08-2011, 05:43 PM   #1
jrank3792
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A little background. When I bought my car, it had a rattle from the clutch area and when you lightly applied the clutch, the sound stop. It was a high pitched rattling noise. I had the throwout bearing replaced by subaru to fix it. The sound went away for a few days but then returned. My clutch/flywheel and pressure plate were all fine and it didn't affect my driving so I decided just to deal with it.

Up until a recent auto-x when I met another wrx owner had the same problem. We started talking about it trying to figure it out.\

Correct me if I'm wrong, I found out due to the 06 and I think 07 having a push style clutch we are missing a spring that applies a little pre load to the clutch fork. Without this the throwout bearing is able to rattle and cause a little bit of noise.

So today I decided to fix mine. It only takes a few minutes to fix. The adjustment is down by the clutch pedal. Here is an image of the area.



Before you begin, turn the car on, listen for the rattle, apply pressure to the clutch and keep an eye on how far you engage it. So you have an idea how much to adjust the pedal.

The area circled is a 14mm nut. First you have to apply pressure to the clutch, slip a wrench on it and loosen it. Stubby wrenches are your friend. You will notice the little tab that sticks out which is the neutral safety switch I think or whatever you call it.

Remove the nut and then the stud will slide out the opposite side. It is connected to the electrical plug. There is also one more nut on this stud, that is what you use to adjust the pre load. You have to tighten that nut down a little bit. Remember how far the pedal had to be pressed to stop the noise then adjust it accordingly.

Once you adjust it, replace the stud and replace the nut and tighten back down. Turn the car on and test to see if you noise is gone, making sure you moved the nut enough but not too much where the clutch is always engaged.

If you have any questions feel free to ask. I know this isn't a popular problem but I figured if someone searches they will find this because I could never find it.

-Joe
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Last edited by jrank3792; 09-11-2011 at 09:05 PM.
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Old 09-11-2011, 11:37 PM   #2
gurusan
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I bought a used 2006 wagon 2 months ago and this problem has suddenly surfaced. It sounds like crickets or something when the clutch is disengaged...a "cheep cheep cheep cheep".

Will definitely give this a go and report back how it works. Thanks so much
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Old 09-12-2011, 05:44 PM   #3
candyman
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Wow, I just developed this problem with my 06 and came here thinking I'd be wading in a deep search pool and then BAM here's this thread right on the front page! Perfect timing, thanks!

C
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Old 09-12-2011, 05:53 PM   #4
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Also, look at your clutch slave rod where it touches the socket in the fork. Thats a more likely chirp/rattle location.
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Old 09-13-2011, 04:25 PM   #5
Cristofr
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i have an 02 and i have the same problem. i know that mine has the opposite style clutch release, but could this possibly be the fix?
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Old 09-13-2011, 11:37 PM   #6
jrank3792
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I'm not sure. You'd have to experiment on it yourself.

I found out there is a small spring/clip in the bell housing that is supposed to stop this but I guess it loosens up or fails? Not sure.
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Old 09-18-2012, 11:27 AM   #7
07VTRex
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i am experiencing this problem in my 07 wrx TR, and am going to try this first before purchasing the TS3k - transmision/tranquil sleeve kit or whatever.

my concern is that will you have to keep repeating this adjustment over time? will it continue to wear out, then require more adjustment, until your clutch is always engaged?

also, what about the contact with the slave cylinder rod and the plate it pushes into? does this reduce the free play at this location, making the two always in slight contact with one another?

where is this "clip in the bell housing" that is suppose to stop it? does anyone have a picture?

sorry to bump an old thread, but i feel like this is a common issue that many people dont know about/know there is a possible fix. for years i have just chalked it up as "deal with it"
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Old 09-18-2012, 11:34 AM   #8
jrank3792
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I actually sold my tr. But had a chance to drive it a few months ago, and the noise did come back. I guess it eventually wears back to where it was. It's kind of just a temporary fix to get rid of the noise.

Most people I've encountered with this issue just deal with until they need a new clutch. And just replace the bearing with the new clutch.
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Old 09-18-2012, 11:55 AM   #9
07VTRex
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i thought it was the common diagnosis that the bearing was not the actual problem, but rather the floating of the bearing from not having the clip holding it in place/applying pre-load?

either way, my tranny was just rebuilt and clutch replaced by andrewtech only 15k miles ago. i would be surprised for the bearing to be bad already, but i could be wrong. I am very excited to see there is even a possible fix for what i thought was an unfix-able noise.

does anyone know what all is involved in installing the "sleeve kit" TSK3 kit? it says 5 minutes on the website, but the OP says this is an alternate fix to that kit. i dont mind a 5 minute install, but dropping the tranny is a whole different story.
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Old 06-07-2014, 10:47 PM   #10
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I have a problem just like this. I have a 97 L. I just changed the throw out bearing thinking that was the noise. Still there.went to the dealerships and bought these clips for 3.88 a piece! ***55357;***56865; pulled the trans AGAIN, put these clips in and STILL have the noise.
Car idles and i hear a" kkkkrrrrrrrrrrrrrrr" type noise like a bearing os shot. Push the clutch in and itvgoes away. Anyone else have this problem??
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Old 08-05-2014, 07:02 PM   #11
whispering_eye
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idk if this solves your issue, but generally, from research I've done, it is the TO bearing or main input shaft bearing. Diagnosis seems to be by changing the transmission oil. If its really dirty and silvery in color, kind of looks like it has grease that isn't tranny lube then that is the main input shaft bearing.

Here is my research: http://www.ultimatesubaru.org/forum/...or-to-bearing/
http://www.rs25.com/forums/f8/t20695...isengaged.html

I've really been hoping that it's the TO bearing since I can just re-do my clutch while I'm at it...idk. Seems to line up all to well, and not just for me.
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Old 04-07-2017, 08:08 PM   #12
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Default This fix worked in 2010, It worked again today.

Right to the point.
2010- Blew stock clutch, replaced with stock at dealer, TOB squealed high pitch, same as yours. Drove it for a while, Subaru warrantied their work, offered to replace with stock, decided to upgrade to ACT SB5 HDSS. Same issue, TOB squeal, touch the clutch pedal, goes away, idling or driving. Call ACT, they said adjust clutch pedal as you show. Did that. Drove car for 20,000 kms. Backed out the clutch pedal completely back to stock and the noise never returned! Drove for another 10000 kms, 2015 Upgraded from stock power to Stage 2, roughly 50 HP, up to 350 wheel torque. Drove for another 10000 kms. This eventually overpowered my clutch and it started slipping.

I don't think adjusting the clutch pedal caused the failure, but putting more torque to the wheels did in the half worn out clutch disk. I do like how you say the TOB needs to have some preload on it, aka pushing the clutch pedal down slightly, that solves the issue and puts people's minds at ease about adjusting the clutch pedal. Explains it and fixes the issue.

2016, I Upgraded to ACTs new SB11 HDSS which has higher torque capacity, but the TOB Squealed from day one. Guess what I just did after putting up with the noise for 8 months and 10000kms? Adjusted the clutch pedal again! Squeal gone. Hoping to get 100,000 kms out of this one, I'll back out the clutch pedal after 10,000 kms and update

**EDIT- Update - One month later I Called a good Subaru Dealer in Vancouver - Docksteader - that sees a lot of aftermarket clutches and modified Wrx/ stis - They said definitely DO NOT adjust the clutch pedal - shown in the picture above. - The pressure that makes my squeal go away is putting a "preload" / slight pressure and wears out your bearing faster - After speaking with him and realizing the mechanics of the Throw out bearing, clutch fork, and pressure plate, I decided to back off my clutch to normal. The squealing was much less, but that just means I wore it out a little or heated it up. It is a bad bearing, and many of them are. I wonder if there is a way to test them before installing them in so many cars to prevent this from happening all the time. Put in a bad bearing, it squeaks, you either put up with it, drop your tranny, replace it and hope the new one doesnt squeak, or adjust your clutch pedal and wear it out faster. Anyone think that maybe setting up a bearing to rotate and simulate a pressure plate contact would be easy to do, perhaps with a drill and attachment to load the bearings to see if they squeak. Thats what the Subaru lead tech said, the squeak is from the bearing itself, not the bearing contacting the pressure plate...

Last edited by BC_WRX; 06-05-2017 at 12:58 AM. Reason: Update
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Old 06-02-2017, 01:28 PM   #13
Discard_WRX
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This is a little old, I realize, but this fixed my rattly TOB full stop.

I got the rattle a little while after installing my exedy stage 1 clutch, combined with ACT streetlite flywheel. After adjusting the little stud in the picture the rattle is gone, and the clutch feels much much better.
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Old 08-09-2017, 06:57 AM   #14
Booki
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Sorry for the thread bump, but is this the noise everybody is refering too?

Just put in a new clutch kit and I get this noise. Super annoying.

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Old 08-10-2017, 12:31 PM   #15
Booki
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Bump, anybody have any ideas if the sound in my video is the throw out bearing?
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Old 08-14-2017, 12:15 PM   #16
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Not TOB noise....TOB noise only happens when letting off on clutch and has a short chirp sound
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Old 08-14-2017, 01:23 PM   #17
_brian_
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I wondered why when I press my clutch in with a tiny amount of pressure the rattle stops. i thought it could be something like the bearing not being preloaded, but i also wondered why it would just appear if that were the case, and not the bearing wearing out. it only happens when the car is warm. this noise appeared for me in april and is now present almost every day when i commute home in the afternoon.

i remember i bled the brakes in april and the clutch in mid june (many bubbles came out of the clutch), perhaps the clutch adjustment was off because of all the JDM air in the system when i got the car and now the clutch pedal is where it SHOULD be (if this works the same as a brake pedal, and the clutch sits higher if there is air) there is no preload.

this is the mechanism, http://parts.subaru.com/a/Subaru_201...10-100-02.html

i wonder if the spring in REPAIR SET-CLUTCH OPERATE is the spring mentioned earlier in this thread -- it appears that spring will apply a marginal amount of pressure on the piston that operates the clutch fork. if so, the preload causes bearing wear thing is either a myth or its so marginal that it would be the same as the service life of the clutch.

i took this video in april. i think i put my foot on the clutch at 0:27

EDIT: nevermind, the 2015 WRX has a different design, this fix doesn't apply

Last edited by _brian_; 08-14-2017 at 06:29 PM.
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Old 08-26-2017, 09:19 PM   #18
Booki
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Thought I would bump this up, as I think I have a found to the noise my car made.

Will be testing it out shortly.


Ok I have found the source of my noise, where the clutch fork and slave cylinder contact is the source of my noise.

When the car is idling the clutch fork rattles against the slave cylinder causing a whine/squealing noise.

I put some grease on it and there is no noise now! Bad part is it came back, so I assume I will need to use a better quality grease.

Last edited by Booki; 08-27-2017 at 05:49 AM.
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Old 12-12-2017, 10:12 AM   #19
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I believe I am experiencing the same noise as well on my Fozzie.
I only noticed it once temperatures started getting below freezing. It definitely sounds like it is coming from the throw-out bearing area. Not so much the interface between the clutch fork and the slave cylinder.
If I pull the clutch fork toward the slave the noise goes away.
If I push away from the cylinder I hear it.
If I apply any clutch pedal pressure the noise also goes away.
If I exercise the clutch a couple of times the noise will go away for a little while but will creep back until I exercise the clutch a few more times.
The noise goes away completely as the engine warms up.
I almost feel like the clutch is adjusted wrong and as the engine vibrates it pushes the slave cylinder against the clutch fork.
I am hopping that lubrication in the throwout bearing is just cold and I can limp by for a few months. I would rather not have to change out the clutch in the middle of the Chicago winter. Any thoughts?
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Old 01-05-2018, 05:56 AM   #20
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Bump...here is where I am at with mine. Box is out and currently inspecting everything

https://youtu.be/TKLlq1oBLY0
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Old 03-26-2018, 11:04 PM   #21
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Quote:
Originally Posted by Booki View Post
Bump...here is where I am at with mine. Box is out and currently inspecting everything

https://youtu.be/TKLlq1oBLY0
Booki, have you found the solution to the noise?
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Old 06-04-2018, 12:16 AM   #22
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Quote:
Originally Posted by Booki View Post
Bump...here is where I am at with mine. Box is out and currently inspecting everything

https://youtu.be/TKLlq1oBLY0
Bump, Interested in hearing about your solution...
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Old 08-27-2018, 06:30 AM   #23
Booki
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Sorry guys ! Never finished this off.

This video should explain it better then I could type it out, or at least point you in the right direction.

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Old 09-26-2018, 03:44 PM   #24
DaftCzar
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I replaced the Clutch fork and when I did It recommended to put high temp grease on the contact points of the ball to fork and fork to bearing. I also added some to the sleeve kit area in your video.
This solved my problems.
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Old 12-19-2018, 03:19 PM   #25
Bgold9
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Quote:
Originally Posted by josho808 View Post
I have a problem just like this. I have a 97 L. I just changed the throw out bearing thinking that was the noise. Still there.went to the dealerships and bought these clips for 3.88 a piece! ***65533;***65533; pulled the trans AGAIN, put these clips in and STILL have the noise.
Car idles and i hear a" kkkkrrrrrrrrrrrrrrr" type noise like a bearing os shot. Push the clutch in and itvgoes away. Anyone else have this problem??
I am experiencing this same issue, wondering if you have found a fix or anything that could help me out with making this sound go away
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