: Expert Clutch Advise Needed
03-12-2010, 11:43 PM
Ok I got a local tranny ([limp]) shop [rofl] to install my new 6-speed and new Spec stage 3 with lightweight flywheel. Now when the car is in gear and I let off the gas the clutch is making a rushing noise as it revs down. It sounds like there are a lot of marbles in there or like one of those big sticks with all the beads that is used as a musical instrument. The noise goes away when I push in on the clutch or take it out of gear.
I took a buddy for a ride today and he told me it sounds like the throw out bearing needs to be adjusted or pilot bearing or an input shaft bearing in the transmission. He is a "Civic guy" so I don't know if that applies??? I am taking it back to the shop on Monday and I would like for some advise as what you guys think may be wrong or what I should tell them to look for. I haven't been revving it hard. 3,500 rpm shifts with normal acceleration for the break-in period (80 miles so far). Thanks as always!
03-13-2010, 12:22 AM
im not sure on this i just had a oem replacement clutch installed on my svt with a new dual mass flywheel i couldnt wait to save the money for a lightweight flywheel and clutch combo but good luck
03-13-2010, 10:36 AM
Ok been doing some youtub'in and the clutch is not clicking, or whining...IDK it just sounds like marbles are in there when I let off the gas and it is in gear. As soon as I push in the clutch pedal it goes away!
03-13-2010, 02:45 PM
did you have the throw-out bearing replaced? If not that may be your problem
03-13-2010, 02:48 PM
does it rattle at all in idle when not in gear and your foot isn't on the pedal?
03-13-2010, 02:50 PM
Could be alot of different things, but, all the lightweight flywheel manufacturers state that there may be increased gear noise with the alum flywheel. Usually this is at a stop when in neutral at an idle, not when in gear. Some items that may help to diagnose: Does it make the noise when 1. in neutral, 2. in gear, 3. clutch pedal depressed or released, 4. moving or at stop.
03-14-2010, 11:18 AM
i have a clutchmasters stage 3 with their aluminum flywheel and i replaced the throwout bearing. its still loud at idle not in gear but instantly goes away when i push in the clutch. its been over a year now and i havent had any problems other than noise. hope this helps
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03-14-2010, 12:02 PM
Yeah, I think the OP is just being overly sensitive to the noise. It is pretty noisy with the aluminum flywheel. I can hear it even when I have music on if it's on low volume; especially during deceleration in gear.
03-14-2010, 12:27 PM
same here but with no problems as of yet i have come to realize its normal. it did scare me at first though
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03-17-2010, 08:18 AM
^^^^^ i have been reading alot cause i need to get a new clutch and this is sounding more and more like a normal occurance with new clutches and light flywheels. Give it some time and see if it gets worse. if it does there may be different problems. hope it works out man.
03-18-2010, 09:21 PM
there is no adjustment for the throw out bearing either it's good or it isn't. the only the thing you can do with the throw out bearing is bleed it . not sure what come's in the spec kit but usually any good kit comes with throw out bearing and pilot bearing.
03-18-2010, 09:37 PM
Yep, any clutch kit you get from CFM will come with throwout bearing/slave cylinder (integrated for the Focus). Our clutches don't have pilots bearings.
03-19-2010, 06:54 AM
The clutch throw-out bearing is in contact and spinning all the time so pushing or not pushing doesn't make any difference regarding sounds. Your noise concern is one of the reasons Ford went with the dual-mass flywheel design. Another is synchro wear due to the disc mass....which is less when you use a solid plate that the dual-mass allows you to use. Conventional sprung-hub discs are heavier, due to the additional springs and such, and this places additional load on the synchros during hard shifting.
The noise you are hearing is probably normal gear noise that the factory clutch design dampens out so you don't hear it. Maybe you could find someone nearby with a similar setup and get a ride to hear how theirs' sounds? Might make you feel better.
03-19-2010, 07:07 AM
There is no "gear noise"....only the flywheel makes noise.
03-19-2010, 08:58 AM
The clutch throw-out bearing is in contact and spinning all the time so pushing or not pushing doesn't make any difference regarding sounds.
Say what? Isn't the throw out bearing in contact with the clutch ONLY when the clutch pedal is depressed.
03-20-2010, 11:42 AM
There is no "gear noise"....only the flywheel makes noise
Where does the noise the flywheel makes come from? When the clutch is depressed, thus disengaging the transmission, the noise stops.....so one can assume that it comes from the transmission, yes? All we have inside the transmission to make that noise is a bunch of gears spinning around, and they always make some noise, but you normally don't hear it because the dual-mass flywheel absorbs it. The aluminum rings like a bell and amplifies the sounds.
What! All hydraulic clutches are in contact with the pressure plate at all times....that is how they automatically adjust themselves. They just don't press hard enough to release the clutch.....but are still spinning. So, normally, if a throw-out bearing on a hydraulic clutch makes noise, it will make it whether pushed in or not. The sound CAN change when you increase the load by pushing it in, but won't go away when you release it.
06-03-2010, 11:59 PM
The shop told me to drive it for a thousand miles and then bring it back. So I did. He said it sounds like the input bearing. Another $800+ to fix. Oh well I will just keep telling myself its the fuel injectors ;). Oh it stopped today at the red light when I turned off the AC. Switched it 3 or 4 times. Came on and went away. Weird.
06-04-2010, 12:17 AM
The tranny man said a heavier gear oil might quiet it up a bit (I'm assuming ford recommended oil is in there now). Any suggestions?
06-04-2010, 02:52 PM
I have read alot lately and this is a common occurance man. Light flywheels tend to make noise at idle and when slowing. Your tranny man is trying to make money. you have a noise and he is going to say there is something wrong. I would keep driving it and see if it gets any worse or if it stays where it is. If it stays there and does not get worse and still works properly i would leave it be and just get used to it.
06-04-2010, 08:48 PM
going to chime in here. I had a spec stage one, and currently have a spec stage two. what your hearing is normal clutch chatter that you get with all aftermarket lightweight setups. mine sounds like a desiel truck when i'm moving and sounds like a load a pebbles in the case when i'm sitting with the clutch out. I have about 10k between the 2 of them with no issues. don't let the tranny guy try and sell you 800$ worth of work as you will pretty much be throwing it away in my opinion.
06-04-2010, 09:33 PM
Thanks for the input guys (+rep). Will a heavier oil help with the noise? If so what weight.