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shudder when engauging clutch

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Old 01-15-04, 12:21 AM
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shudder when engauging clutch

I've noticed when I engauge the clutch there's a little shudder in the back end, the car will get rolling, then once the pedal reaches a certain point it'll shudder a little bit, then I move past it and it stops and acts normally.
it's a new clutch, could it be that it hasn't broken in yet? I'm taking the engine out for a rebuild, should I take the plate in to be machined or anything while it's apart?
Old 01-15-04, 01:03 AM
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mine did that aswell. never did find out what it was. but i just put in a new engine and tranny. have not got to drive it yet. going to take it out tommor(stupid incurrance company) I think that it does have something to do with the clutch.
Old 01-15-04, 01:06 AM
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Mine has been doing that after my tranny swap.. only in first gear though from a dead stop. Does it about 1/4 of the time.. any one know whta it might be?.
Old 01-15-04, 01:12 AM
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same thing happens to me..(when it's running)

about 1/4 of the time too. it has a LW flywheel and centerforce clutch.
Old 01-15-04, 01:23 AM
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Ya i know what you all are talking bout too ...1st gear dead stop.mainly at red lights and stop signs.really pisses me off too. I thought it was my diff, but when i changed it and my driveshaft. but its still there.

You guys get that little thunky type noise when ya at full throttle and abruptly let off or vice versa? cause i thought that my have something to do with it.
Old 01-15-04, 01:32 AM
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I get that thunk noise if I hit the clutch right after I let go of throttle.
Old 01-15-04, 01:37 AM
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i failed to mention that it happens to me in reverse
Old 01-15-04, 05:07 AM
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hehe, sounds like I should just live with it.
I thought maybe the flywheel was warped or something, I've noticed if I get the car up and rolling then let the clutch out quickly it won't do it, there's just like an inch of travel where if I stay in that zone *shudder*shudder*shudder*

could it be some kind of chatter in the tranny?
When I reinstall it I'll change the fluid to redline, maybe that will help.

Last edited by Philip_g; 01-15-04 at 05:14 AM.
Old 01-15-04, 06:20 AM
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sounds exactly like my problem.

I've determined it's likely the oil clutch/transmission seal that's leaking, therefore getting oil on the clutch.

To test, pull up your e-brake as much as possible. Put car in second gear, burn the **** out of the clutch for maybe 20-30 seconds.

See if you smell burning oil. Then drive and see if it chatters.

If the chattering is gone, then it's oil on the clutch, finding out where it's coming from is a whole different story.

If that's not it, check the clutch reservoir. If it's low, could be a problem with the slave cylinder, or maybe a leak in the line.

From what I've experienced on other car makes, if the flywheel were warped, you'd have other problems aside from the clutch (like a blown tranny).
Old 01-15-04, 06:34 AM
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quit stalking me

it's quite a lot worse than say, a WRX clutch shudder, it feels like the back wheels are spinning a little bit almost.

the leak sounds about right though. As long as I have the trans out I need to get to the bottom of it

Last edited by Philip_g; 01-15-04 at 06:38 AM.
Old 01-15-04, 07:11 AM
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yeah, my shudder is REALLY bad. it really only happens to me once the car has warmed up, though. But it shakes the whole car and it feels like the tranny is going to fall out or something
Old 01-15-04, 07:30 AM
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I have it, too. I was told it was just a fact of life b/c of my unsprung ACT 6-puck copper clutch, but after seeing this thread I'm not so sure...



I manage to minimize the shudder most of the time, but sometimes it's so bad it feels like something in the drivetrain is about to break.
Old 01-15-04, 08:52 AM
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it sound like your flywheel(s) have a surface problem. normaly this happens when your flywheel gets scorced from the clutch(from abuse or poor driving skills) simalar to brake rotors when you get on your brakes and if your rotors are warped or scorced you get this pulsation in your brake pedal or shaking in the steering wheel. oh, and not to meniton that when installing a new clutch you hsould always use a pilot bushing or bearing if required. i think some of you just need to get your flywheel resurfaced and one with lightweight flywheels need to replace the plates and probably a new clutch. good luck guys
Old 01-15-04, 09:28 AM
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i have the same problem... its the input shaft bearing ...its bad!!! not your tranny oil..
here is my symptoms....
clunky on deceleration
noisy whinning noise inside the car in 1st,2nd,3rd and 5th
shuttering when taking off in 1st or reverse...

theses trannys are just like our electrical system....JUNK!!
Old 01-15-04, 10:04 AM
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Check engine / tranny / differential mounts. If those are not broken, it may be a chattering clutch. Some shudder is normal with stock FC's, which is part of why Racing Beat developed the engine torque brace.
Old 01-15-04, 10:42 AM
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i have a torque brace....my bearings are making a grinding noise....i also have new diff/tranny mounts......
Old 01-15-04, 12:28 PM
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i do also think my mountings are all junk.

there seems to be a lot of driveline slack. if I'm not smooth with the throttle (off or on), the car bucks pretty noticeably (at any speed and gear)
Old 01-15-04, 07:01 PM
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Originally posted by JGard18
i do also think my mountings are all junk.

there seems to be a lot of driveline slack. if I'm not smooth with the throttle (off or on), the car bucks pretty noticeably (at any speed and gear)
same here, I'll check it out under the car.
I do not exibit the other symptoms and don't think it's the input bearing though, I can pull it apart and check it I suppose
Old 01-15-04, 10:00 PM
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go here, http://www.fcstore.com/inc/pdetail?v=1&pid=989
Old 01-15-04, 10:06 PM
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Oil on the clutch could be the rear main seal. It went out on my stang and the clutch was totally saturated in oil. Also, does anyone here know what the hell causes that shudder in WRX's? My dads does it when he first starts moving, but none after that.
Old 01-15-04, 11:01 PM
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Originally posted by Sideways7
Oil on the clutch could be the rear main seal. It went out on my stang and the clutch was totally saturated in oil. Also, does anyone here know what the hell causes that shudder in WRX's? My dads does it when he first starts moving, but none after that.
there's a TSB for that, bitch to the dealer and you should get a whole new assembly under warranty.
Old 01-15-04, 11:05 PM
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Are you talking about the WRX clutch thing, or the rear main seal. If it the rear main seal, it doesnt surprise me that my uncle didn't replace it. Its in automotive heaven right now, so its kinda a mute point.
Old 01-16-04, 12:30 AM
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Originally posted by Sideways7
Are you talking about the WRX clutch thing, or the rear main seal. If it the rear main seal, it doesnt surprise me that my uncle didn't replace it. Its in automotive heaven right now, so its kinda a mute point.
the WRX. this is a very common problem with the WRX, even minimal research should turn up the TSB for it verbatim.
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