Bad throw out bearing?
12-26-2010, 05:32 AM
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It depends how bad. Its possible that the bearing itself will destroy itself and scuff up the other parts within the bellhousing (clutch disk, pressure plate, flyhweel) I suppose its highly unlikely to do a LOT of damage. This is all speculation, maybe someone with more knowledge will chime in later?
12-26-2010, 01:19 PM
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If the bearing is locked up, it may spin the inner sleeve which would quickly cook up the urea grease and begin putting wear on the input shaft. Usually, when one part of the clutch system goes out, the other parts will go out soon.
12-26-2010, 04:59 PM
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But if it locks up, isn't it going to spin around within the release fork?
Have you ever looked at the inner sleeve? I honestly don't remember how it's structured, since I replaced my clutch disk (for the godawful rattle and buzz on decelleration), about 5 years ago. But as I remember it the inner race spins at engine speed (in contact with the pressure plate release fingers) and the sleeve is bolted to the transmission and remains stationary.
Have you ever looked at the inner sleeve? I honestly don't remember how it's structured, since I replaced my clutch disk (for the godawful rattle and buzz on decelleration), about 5 years ago. But as I remember it the inner race spins at engine speed (in contact with the pressure plate release fingers) and the sleeve is bolted to the transmission and remains stationary.
12-26-2010, 05:06 PM
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Originally Posted by RedY2KS2k,Dec 26 2010, 05:59 PM
But if it locks up, isn't it going to spin around within the release fork?
Have you ever looked at the inner sleeve? I honestly don't remember how it's structured, since I replaced my clutch disk (for the godawful rattle and buzz on decelleration), about 5 years ago. But as I remember it the inner race spins at engine speed (in contact with the pressure plate release fingers) and the sleeve is bolted to the transmission and remains stationary.
Have you ever looked at the inner sleeve? I honestly don't remember how it's structured, since I replaced my clutch disk (for the godawful rattle and buzz on decelleration), about 5 years ago. But as I remember it the inner race spins at engine speed (in contact with the pressure plate release fingers) and the sleeve is bolted to the transmission and remains stationary.
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12-27-2010, 12:29 AM
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Originally Posted by RedY2KS2k,Dec 26 2010, 03:59 PM
But if it locks up, isn't it going to spin around within the release fork?
Have you ever looked at the inner sleeve? I honestly don't remember how it's structured, since I replaced my clutch disk (for the godawful rattle and buzz on decelleration), about 5 years ago. But as I remember it the inner race spins at engine speed (in contact with the pressure plate release fingers) and the sleeve is bolted to the transmission and remains stationary.
Have you ever looked at the inner sleeve? I honestly don't remember how it's structured, since I replaced my clutch disk (for the godawful rattle and buzz on decelleration), about 5 years ago. But as I remember it the inner race spins at engine speed (in contact with the pressure plate release fingers) and the sleeve is bolted to the transmission and remains stationary.
12-27-2010, 01:39 AM
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First of all: the throwout doesn't ride on the input shaft, it slides on the throuwout guide.
The tube with the triangular base & 3 bolts.
If it would actually completely seize * it can not spin in the clutch fork fingers, as the throwout groove has 2 "cams" to stop it from spinning in the fork's fingers.
(it can only slide back & forth on the guide)
It would start to slip at pressure plate - throwout contact and most likely make a lot of noise, create metal dust and what not and wear out the PP spring fingers.
* personally I have never seen a roller bearing seize.
Even when the cage is completely gone it still rotates - badly and possibly excentric - to the point where the balls get chewed up and fly out of the bearing.
The tube with the triangular base & 3 bolts.
If it would actually completely seize * it can not spin in the clutch fork fingers, as the throwout groove has 2 "cams" to stop it from spinning in the fork's fingers.
(it can only slide back & forth on the guide)
It would start to slip at pressure plate - throwout contact and most likely make a lot of noise, create metal dust and what not and wear out the PP spring fingers.
* personally I have never seen a roller bearing seize.
Even when the cage is completely gone it still rotates - badly and possibly excentric - to the point where the balls get chewed up and fly out of the bearing.