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E36 M3 (1992-1999) {Euro - S50 B32 321hp @ 7400 rpm} {U.S. - S52 B32 240 hp @ 6000 rpm}
Total Produced: 71,212 - Years Produced: 1992 to 1999


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Old Mon, Apr-29-2013, 09:57:05 PM   #21
egebhardt
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Default Re: Center Driveshaft Bearing Removal

I've revisited this problem a few times since.
If you look at the CSB, you can see where a snap-ring will come off and a shield will slide away.
Then you find a rubber seal on the bearing itself. Pick that seal out carefully.
Look inside and you'll probably find nice clean dry bearings. Keep in mind, my cars are all dry California cars.
I packed in more grease and put it back together.
If it's dirty and rusty in there, you probably need a new one.

This "Re-Pack" alternative does not require separating the driveshaft.
I'm sure I'll get flamed for this procedure, but when you have high-quality bearings that are clean, adding grease seems very reasonable. If it is rusted and pitted, well......., replace the CSB. I used common sense and saved time and a little money. I haven't had driveline noises or wobbles yet.
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Old Mon, Apr-29-2013, 11:54:17 PM   #22
Jrrrrrrr
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Default Re: Center Driveshaft Bearing Removal

Quote:
Originally Posted by egebhardt View Post
This "Re-Pack" alternative does not require separating the driveshaft.
I'm sure I'll get flamed for this procedure, but when you have high-quality bearings that are clean, adding grease seems very reasonable. If it is rusted and pitted, well......., replace the CSB. I used common sense and saved time and a little money. I haven't had driveline noises or wobbles yet.
I don't see any reason this is a hackish method. If the rubber surround is good, and if the ball bearings and races inside are good, and because you're already in there, repacking the CSB with grease is fine.

Marring the drive shaft or any other sort of abuse that throws off the driveshaft's balancing is a different thing, obviously.
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Old Tue, Apr-30-2013, 12:16:07 AM   #23
OahuMPower
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Default Re: Center Driveshaft Bearing Removal

"usually" the bearing isnt the problem, it's the shitty rubber surround.

If I'm going to be in there opening that shiet up.. it's getting replaced
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Discussing Center Driveshaft Bearing Removal in the E36 M3 (1992-1999) Forum - {Euro - S50 B32 321hp @ 7400 rpm} {U.S. - S52 B32 240 hp @ 6000 rpm}
Total Produced: 71,212 - Years Produced: 1992 to 1999 at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)