Quick Question.

[jnstrcklnd]

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????

[Torque]

Depends on what sort of vibration. When releasing the clutch or when clutch is already hooked up and accelerating?

[jnstrcklnd]

Originally Posted by Torque

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

[Torque]

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.

[jnstrcklnd]

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.

[LOS]

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?

LOS