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Old 08-22-2010, 03:02 PM   #1
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clutch/transmission problem

In neutral with the clutch out I have a bad rattle. With the clutch pressed all the way to the floor the noise goes away. The clutch is not slipping but when it rattles it seems like the clutch is still engaged when pressed in because its hard to shift. Is this the throw out bearing or the input shaft bearing or both? I have a whine in the transmission in 1st 2nd 3rd and 5th and was told that it was the input shaft bearing going out. Today after I got the rattle in neutral I still have the whine so maybe not the input bearing? Anyway I have a fella looking at it next week and I'm going to go ahead and order a clutch kit and slave cylinder and probably get a new input shaft bearing pressed on since the transmission will be out. If this could be anything else I'd appreciate the help.

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Old 08-22-2010, 03:04 PM   #2
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In neutral with the clutch out I have a bad rattle. With the clutch pressed all the way to the floor the noise goes away.
That is perfectly normal. Really. All you're hearing is the input shaft and its bearings spinning which happens continuously when the clutch is not engaged.

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Old 08-22-2010, 03:47 PM   #3
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This rattle is defiantly not normal. Its loud and just started today. Before this I would hear a slight throw out bearing noise when clutch was out in neutral so this is why I'm leaning towards that guy completely going out.
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Old 08-23-2010, 11:37 AM   #4
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I'm bumping for more help. I had a little more time to test it out. I said rattle before I should have said knocking. The noise happens when I'm in neutral or in gear when the clutch is let out. When the transfer case is in neutral the noise stops and then I can shift through all gears with no noise but its there in all other positions. The knocking also will stop with clutch pressed in. I feel the vibration in the gear shifter not in the transfer case shifter. The clutch has a hard time disengaging sometimes and I have to force it into gear but I can let the clutch out and press it again and it shifts fine. I crawled under and can hear that the sound is louder in the bell housing or in the front of transmission. Doesn't seem to be coming from the transfer case. I'm confused why when the TC is in neutral the noise stops though. That throws a wrench in my bad throw out bearing hypothesis. I have a guy going to look at it next week but I'd like a heads up on what it could be till then. Thanks.
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Old 08-23-2010, 11:41 AM   #5
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Throw out bearing or clutch fork?
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Old 08-23-2010, 11:42 AM   #6
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I'm bumping for more help. I had a little more time to test it out. I said rattle before I should have said knocking. The noise happens when I'm in neutral or in gear when the clutch is let out. When the transfer case is in neutral the noise stops and then I can shift through all gears with no noise but its there in all other positions. The knocking also will stop with clutch pressed in. I feel the vibration in the gear shifter not in the transfer case shifter. The clutch has a hard time disengaging sometimes and I have to force it into gear but I can let the clutch out and press it again and it shifts fine. I crawled under and can hear that the sound is louder in the bell housing or in the front of transmission. Doesn't seem to be coming from the transfer case. I'm confused why when the TC is in neutral the noise stops though. That throws a wrench in my bad throw out bearing hypothesis. I have a guy going to look at it next week but I'd like a heads up on what it could be till then. Thanks.
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Old 08-23-2010, 11:45 AM   #7
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I'm bumping for more help. I had a little more time to test it out. I said rattle before I should have said knocking. The noise happens when I'm in neutral or in gear when the clutch is let out. When the transfer case is in neutral the noise stops and then I can shift through all gears with no noise but its there in all other positions. The knocking also will stop with clutch pressed in. I feel the vibration in the gear shifter not in the transfer case shifter. The clutch has a hard time disengaging sometimes and I have to force it into gear but I can let the clutch out and press it again and it shifts fine. I crawled under and can hear that the sound is louder in the bell housing or in the front of transmission. Doesn't seem to be coming from the transfer case. I'm confused why when the TC is in neutral the noise stops though. That throws a wrench in my bad throw out bearing hypothesis. I have a guy going to look at it next week but I'd like a heads up on what it could be till then. Thanks.
my guess is clutch fork... had it happen to my autoX car.
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Old 08-23-2010, 12:02 PM   #8
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Hey thanks for the reply and sorry for the double post. I'm trying this from my phone. Does the fork press on the throwout bearing to release the clutch? I have a general understanding on how things work but I'm no mechanic. Looks like this will change though if I keep this jeep long enough haha. Thanks again.
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Old 08-23-2010, 12:08 PM   #9
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Hey thanks for the reply and sorry for the double post. I'm trying this from my phone. Does the fork press on the throwout bearing to release the clutch? I have a general understanding on how things work but I'm no mechanic. Looks like this will change though if I keep this jeep long enough haha. Thanks again.

yea the Clutch fork makes contact with the throwout bearing. I could be wrong, but it sounds a lot like that.
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Old 09-30-2010, 10:03 PM   #10
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Mine just started doing the exact same thing, did you figure anything out?
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Old 09-30-2010, 10:13 PM   #11
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I'M GOING WITH THE THROW-OUT BEARING!
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Old 10-01-2010, 06:43 PM   #12
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Mine will actually creep forward with clutch engaged and tranny in neutral?? anybody got any ideas?
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Old 10-01-2010, 11:11 PM   #13
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I got it all fixed up. I had to rebuild. It was an internal bearing that gave out. The synchros were worn badly too. Also when we got into it we found the input shaft had a few teeth chipped. From the looks of it these were old chips but I replaced the input shaft anyway. With the new input shaft the transmission whines a little, I'm hoping it will settle down but if not oh well at least it works now. The clutch was worn but really in good shape. I changed it anyway since I was in there.

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