Prop centre bearing

[alexanderfoti]

Hi all

I changed the prop center bearing whilst I had the old one out yesterday.

Today I have this noise:

https://youtu.be/6mF6FqFh03M?t=50s

Is the replacement (febi) bearing faulty?

 

[alexanderfoti]

Also identical noise/behaviour/speed

https://youtu.be/1PW_OFEhtrU?t=34s

 

[alexanderfoti]

Keep in mind I also changed the gearbox, so this new noise could be from the box.

 

[DREAMER NO2]

Alex only thing i would do , is remove the propshaft and try it again, to see if it is the one or the other. But as you know marking of the propshaft before removal , so it is replaced in the same place you removed it from Did you check the little bearing inside the coupling some you need to put grease on before refitting the propshaft Could be the speedo cable disconect that first and try it .

 

[alexanderfoti]

Thanks, yes I marked up the prop before separating/removing. Also used the alignment marks themselves.

When you say the coupling, you mean the U joint? They seemed absolutely fine with no grinding or anything whilst off the car.

No speedo cable on these, all electronic.

 

[alexanderfoti]

So its stopped doing it now. Lets hope it stays the same!

 

[Steve@Avantgarde]

Have you fitted the prop bearing hanger around the right way? Not wishing to insult your intelligence Alex but I have seen it done.

 

[alexanderfoti]

Yeah, not a bad shout! This has holes on one side for the handbrake cable bracket so not possible to put it on backwards without having the handbrake swinging in the wind.

 

[John Laidlaw]

Still ok today Alex?

 

[alexanderfoti]

All good today still, something banging on the underside on engine start though. Must check the exhaust is in the right place.

 

[DREAMER NO2]

As we are talking about propshafts is it possible to replace the front propshaft coupling on the w124 m103 without taking out the whole propshaft? I have asked on the forum but get mixed reports .I need to talk to a member thats done this himself .

 

[WG M-B]

As we are talking about propshafts is it possible to replace the front propshaft coupling on the w124 m103 without taking out the whole propshaft? I have asked on the forum but get mixed reports .I need to talk to a member thats done this himself .

Yes it's fine. But bear this in mind....
You will have to force to push the propshaft back to remove the coupling . You should drop the centre bearing first!

 

[WG M-B]

And check the centre bearing carrier doesn't get damaged after

 

[alexanderfoti]

Back again today. Seems to be temperature related. A cacophony of noises from 20 mph upwards. Very odd.

 

[DREAMER NO2]

Think its time to drop the propshaft once more .And try the gerbox on its own . This will tell you what it is

 

[alexanderfoti]

Yes I agree, Need to take a look and see whats going on. Just have to find the time! Pah!

 

[alexanderfoti]

Looked again today, no witness marks on the prop or the rear propshafts, or the underside of the car. Spotted a bit of grease leaking from the new bearing, but suspect its normal:

 

[_Taz_]

I see the mounting holes are slotted, is there a reason for this to allow self alignment during fitting ? Never changed one... But wondering if the carrier is at an angle to the propshaft ? Just a thought !

HTH

 

[alexanderfoti]

I see the mounting holes are slotted, is there a reason for this to allow self alignment during fitting ? Never changed one... But wondering if the carrier is at an angle to the propshaft ? Just a thought !

HTH

thanks Taz, yes indeed, they are slotted to allow for installation without tension in the rubber carrier. When I installed it I left it limp and tightened it up again so there shouldn't be any tension.

 

[alexanderfoti]

Update. Ran it up whilst wheels where off the ground, and prodded around with a stethoscope.

100% noise is coming form the Meyle center bearing. Supplier wants me to remove it and send it to them so I can they can "test it". Its not likely I can remove the old one without damaging it. PAH! Will buy another and replace it at my own cost.