e36 M3 propshaft vibration

[Peejay]

Howsit Guys.

My propshaft has a vibration and doesn't want to go away. It all started when I replaced the centre bearing and housing. Ever since from 80km/h there's a drumming/shudder at the back. The propshaft has been balanced 3 times and still no luck. They also turned it 180 and it got worse. What should I do? Balance it again? Check the alignment? How does 1 do this? Of should I fit shims on the gearbox cross member or the centre bearing housing?

 

[jeff_denning]

Have you checked the propshaft coupling?

 

[Peejay]

Yes its all ok. The guys messed it up when they seperated the shafts to change the centre bearing. Prior to that everything was fine.

 

[frikkieh]

I have a similar problem with my car. Some suggested the tyres, and even the flywheel. Mine only vibrates, when the car is under "load conditions", e.g. uphill or level road.
Did you replace the univeral coupling between the propshaft and the gearbox ?

 

[Peejay]

No I didn't. The stuff that I have done is new rear tyres, had all four wheels refurbed, new rear trailing arm bushes, new rear upper and lower control arm bushes and wheel alignment. I'm quiet certain its the propshaft

 

[Meandmym3]

i use to have a e30 that did just that after fitting the new centre bearing the vibration started struggled a long time to find the problem in the end it was the bush on the front of the propshaft that goes into the gearbox i baught one from bmw fitted it and after that everything was fine

 

[Peejay]

I went to the propshaft place this morning. They say that the propshaft cv has play and needs to be replaced.

So what do I do? New CV from BMW which is out the price range or re-man this CV with new bearings and machined knuckle?

 

[SP33DYV]

I bet they didn't align the dots on the prop shaft when they re-assembled everything. It should not be necessary to re-balance the prop shaft. Now it has probably caused damage to other parts of the drive train. :thumbdo:

 

[veez]

Hi guys i new to the forum , i also have the same problem with my propshaft on my e36 4dr M , I also balanced it two times now and still there ,

 

[Hubblyking]

i use to have a e30 that did just that after fitting the new centre bearing the vibration started struggled a long time to find the problem in the end it was the bush on the front of the propshaft that goes into the gearbox i baught one from bmw fitted it and after that everything was fine

I'm sure this is it.

 

[Peejay]

So I bought a new cv from BMW a will be changing in tomorrow along with the diff pinion seal. Has anyone changed the pinion seal before. How hard is it and what should I look out for? How do u set the backlash on the bearing?

 

[M3_e36]

So I bought a new cv from BMW a will be changing in tomorrow along with the diff pinion seal. Has anyone changed the pinion seal before. How hard is it and what should I look out for? How do u set the backlash on the bearing?

The CV centre bearing and coupling def fixed my vibration it was the smoothest i ever felt my e36 M the pinion seal is a mission,i need to do mine my e46 i think the diff needs to come off and opened to put a new one in if im not mistaken

 

[Peejay]

Here's the parts. I didn't do the job today. Was too lazy. :fencelook:

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[Peejay]

Anybody changed the diff pinion seal before?

 

[hiltonfa]

Hope this will sort your problem out, since you've tried everything else.

Sent from my GT-I8190 using Tapatalk 2

 

[Kish2604]

I bet they didn't align the dots on the prop shaft when they re-assembled everything. It should not be necessary to re-balance the prop shaft. Now it has probably caused damage to other parts of the drive train. :thumbdo:

Pj, please triple check what Speedy is saying here, if the dots don't line up then the U joints are out of "phase" with each other and will cause speed dependent vibration...

 

[RowenS]

I bet they didn't align the dots on the prop shaft when they re-assembled everything. It should not be necessary to re-balance the prop shaft. Now it has probably caused damage to other parts of the drive train. :thumbdo:

Pj, please triple check what Speedy is saying here, if the dots don't line up then the U joints are out of "phase" with each other and will cause speed dependent vibration...

x2

 

[Peejay]

I bet they didn't align the dots on the prop shaft when they re-assembled everything. It should not be necessary to re-balance the prop shaft. Now it has probably caused damage to other parts of the drive train. :thumbdo:

Pj, please triple check what Speedy is saying here, if the dots don't line up then the U joints are out of "phase" with each other and will cause speed dependent vibration...

Dots are lined up guys. 100 percentage its the cv. Now if in turn the shaft if the car is in neutral you can see the play on the cv joint. Anyways I'm more worried about the diff pinion seal and setting the bearing.

 

[Peejay]

Fitted a new cv yesterday but still there's a drumming after 140km/h. I don't know what to do now. Could the diff have a vibration? Anyone know where I can get a second hand shaft or back piece for a m3 4 door?