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Old 05-10-2006, 03:34 PM   #16
Justin e36
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Quote:
Originally Posted by jeffrie
Diff would whine if clutch was engaged or not, even if in neutral.
And would change it's whine tone as you give it throttle or deaccelerat.
Another vote for throw out bearing.
Could just put 80 90 for a little while and see if whine changes tone or goes away.
If it does then it's probably a good time to start shopping for a new one.
Yeah, it's probably the throw out bearing.

The reason I mentioned differential is because I was working on a friend's e34 535i with LSD and it had similar symptoms... high pitched whine, with the clutch released it would stop whining. Sounded like a loud supercharger, a little deeper. Only when accelerating it would whine. But it also clunked when hard-shifting... until the wheels locked up when shifting to 3rd. ... a sea of bearings fell out when I opened up the diff.

Slovenia... curious, did this problem only start after the SC install?
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Old 05-10-2006, 03:58 PM   #17
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My money is on the release bearing, I would get it replaced immedietly before it causes more damage.
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Old 05-10-2006, 04:18 PM   #18
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I would say its the release bearing too. However, if you added a charger, you can expect your tranny bearing to go quickly if your constantly beating the car. If your worried about the tranny itself, there isn't much to do except maybe an oil treatment and some thick oil.
Lastly, in order to preserve the tranny, try to avoid hard downshift. Hard downshifting is a major cause of bearing failure on BMW trannies.
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Old 05-10-2006, 04:43 PM   #19
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Quote:
Originally Posted by Justin e36

Slovenia... curious, did this problem only start after the SC install?
yup...the noise just got increasingly louder, but not right after the install, I would say like 2 days after, but the car was driven a bit and run hard to make sure we were hitting 8psi at high rpm....
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Old 05-10-2006, 06:17 PM   #20
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I don't see how it could be the release bearing at all, unless you're clutch slave cylinder isn't fully retracting, your the release fork has shifted somehow.

Try the cheapest option, the center driveshaft bearing, then make sure it's not coming from the diff, check the rear wheel bearings (I know its far, but vibrations can travel up the drivetrain), and as much as you'll hate to hear it, it could be something internally in the gearbox that is damaged.
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Old 05-10-2006, 07:28 PM   #21
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I have the exact same problem, this sucks...sometimes ONLY when its cold i accelerate slowly and from 1000-2000rpm it is normal and then at 2000rpm theres no power increase but my throttle position is the same?
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Old 05-11-2006, 11:30 PM   #22
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i had the EXACT problem...when you press the clutch it goes away, when driving or in neutral with your foot off the clutch, it whines. throw out bearing needed replacing.
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Old 05-12-2006, 12:54 AM   #23
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Funny, my car is in at Bimmersport for the same reason, and he mentioned the bearings as well. I have to pick up the car tomorrow, so i will let you know.
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Old 05-12-2006, 01:30 AM   #24
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Quote:
Originally Posted by thinair
I don't see how it could be the release bearing at all, unless you're clutch slave cylinder isn't fully retracting, your the release fork has shifted somehow.
The shaft is always spinning thru the release bearing, and if the bearing is shot it is going to squeel.
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Old 05-12-2006, 08:53 AM   #25
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Quote:
Originally Posted by A.K.A. Blackout
Funny, my car is in at Bimmersport for the same reason, and he mentioned the bearings as well. I have to pick up the car tomorrow, so i will let you know.
you gotta reply with the outcome, thanks man
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Old 05-12-2006, 09:45 AM   #26
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Charlie was telling me the same thing....we should do a bearing group buy and install rate
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Old 05-12-2006, 09:51 PM   #27
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Ok guys, got the bearings done with some other work to my car and it seems to be the cause of the whining. So I am completely happy with the outcome!
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Old 05-12-2006, 10:07 PM   #28
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Quote:
Originally Posted by A.K.A. Blackout
Ok guys, got the bearings done with some other work to my car and it seems to be the cause of the whining. So I am completely happy with the outcome!
pm sent
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Old 05-13-2006, 10:36 AM   #29
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check power steering fluid.
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Old 05-15-2006, 10:35 PM   #30
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I've got the exact same issue Rob.
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