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5-Series (E12,E28, E34, E39, E60) Chat relating to the BMW 5-Series of all generations. Specific models include: BMW 518, BMW 520, BMW 520i, BMW 530i, BMW 528i, BMW 530i, BMW 518i, BMW 524d, BMW 525i, BMW 525e, BMW 528e, BMW 540i, BMW 535i, BMW 520d, BMW 525td, BMW 525d, BMW 530d, BMW 525i/xi, BMW 530i/xi. (BMW 5-Series Forum)

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Old 09-29-2007, 05:00 PM   #1 (permalink)
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Exclamation Quick Question.

Hey guys, been awhile. I just have a quick question. I might be buying a 94 530i, 3.0L V8 and 5 speed. Only has 131k miles. The owner says he put in a new clutch and had the flywheel machined at the same time. He got it all ogether and he said there is a vibration coming from that area now. But he said it might go away when it breaks in. What do you guys think? Worst case it needs a new flywheel or????
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Old 09-29-2007, 05:33 PM   #2 (permalink)
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Depends on what sort of vibration. When releasing the clutch or when clutch is already hooked up and accelerating?
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Old 09-30-2007, 12:01 AM   #3 (permalink)
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Depends on what sort of vibration. When releasing the clutch or when clutch is already hooked up and accelerating?
I want to say whjen hooked up and accelarating, but I dont really know. Im going down tomorrow morning to check her out. Whats the worst case? Anything else I should look out for? Thanks Torque!!!

Here is the original posting for the car. It dosnt mention the vibration though... 1994 BMW 530i V-8 5 speed
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Old 09-30-2007, 12:25 AM   #4 (permalink)
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I'm worried about the "runs rough at times" more than the vibration.

It may still be the nikasil engine ... look into that; check the casting numbers on the block. You do not want a rough running v8 ... that can only mean trouble. Read this and look or have a mechanic check the numbers BMW M60 - Wikipedia, the free encyclopedia

edit: If it is a newer, Alusil block, have a leakdown and compression test performed ... something doesn't add up here: '94 530 for 2000. I paid more for a '90 535.

As for the vibration: if the clutch is already hooked up, it's more than likely something to do with the driveshaft. Possibly:
- Guibo/flex disk gone or installed backwards/out of alignment.
- Worn carrier bearing
- Incorrectly adjusted preload on the carrier bearing.

Hope that helps.
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Old 09-30-2007, 06:18 PM   #5 (permalink)
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Well, I didnt get a chance to get down there and look at it today. But hopefully tomorrow. Is there anything specific that I should ask the dude? Im not going to be able to have extensive testing done to it like the leak down or compression.
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Old 10-01-2007, 08:58 AM   #6 (permalink)
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It can also be the drive shaft or flex disk among other things!
How fast are you going when it shakes? 20mph?30 or 55-60?

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