Bell housing bearing

[PiotrK100]

Since few months I have a new toy K100 and ride with HER non stop (did already 5000 km ) to see what come up in meantime to chnge that in winter time. I was hearing a annoying noice from alternator, so I guess that bearing need to be replace but did not want to do that during the season. But today, I had a little time, I take of alternator and was very surprised that when moved runs smoothly without any bearing noice. So I put all stuff together apart from alternator and run the engine....what the noice :mbird
So my best guess is (I think that is 99% that option) the bearing in bell housing unfortunately. I wonder how that happens, while it runs in oil bath or should at least. So now the question if somene has such situatin?? I do not want to take apart the engine before season ends but also I do not want that bearing will fall in pieces to the sump!!! MAybe will be an idea to unscrew that part that moves alternator and grease thru sealant that bearing??? (how to unscrew that)
What part of the engine must be take of to get access to that bearing, mean how to dismantle bellhousing. All informtion ale warmly welcomed.

[kennybobby]

Can you search youtube to find a k100 video recording of the noise from someone else--to hear whether it is a bearing noise or a clanking sound of the balancer shaft?  For example in a k75 we can hear this sound:

[Laitch]

So I put all stuff together apart from alternator and run the engine....what the noice :mbird

Is it this noise, Piotr?

[Scud]

What part of the engine must be take of to get access to that bearing, mean how to dismantle bellhousing. All informtion ale warmly welcomed.

This bearing, on a motor with 180,000 miles was absolutely smoked. But it didn't make any noise at all and I was very surprised to find the burn marks in the block. I believe this is inline with the bearing you are concerned about. I dismantled the entire bike and this bearing was one of the last things I saw. For orientation, the rear cylinder wall is at the bottom of the picture, it's looking out, toward where the head would be.

I believe you could get to it by removing transmission, then bell housing. But I would suggest spending some time with a shop manual if you have one - or it may be worth paying a professional mechanic just for a diagnosis or advice - then decide whether you can (or want to) do the work.



I believe English is not your language, so please allow me to just point out something I think is very funny in your writing. "All information ale warmly appreciated." Ale = beer. I've given you some information, and I would gladly buy you a beer.

Queers and good luck with the puzzle.

[PiotrK100]

This bearing, on a motor with 180,000 miles was absolutely smoked. But it didn't make any noise at all and I was very surprised to find the burn marks in the block. I believe this is inline with the bearing you are concerned about. I dismantled the entire bike and this bearing was one of the last things I saw. For orientation, the rear cylinder wall is at the bottom of the picture, it's looking out, toward where the head would be.

I believe you could get to it by removing transmission, then bell housing. But I would suggest spending some time with a shop manual if you have one - or it may be worth paying a professional mechanic just for a diagnosis or advice - then decide whether you can (or want to) do the work.



Hi
No that is not that sound, it is exactly noice of ball bearing running loose and without proper lubrification. And I gues It must be from alternator shaft because if such a noise would be created from main saft bearing that will be also leakage because sealant will not stand move like that beeing immersed in oil.

I believe English is not your language, so please allow me to just point out something I think is very funny in your writing. "All information ale warmly appreciated." Ale = beer. I've given you some information, and I would gladly buy you a beer.

Well, sure english is nt my mother tongue but that was just a typing mistake, was ale and should be are.

Queers and good luck with the puzzle.

[PiotrK100]

Will try to record it later  and place a link for my ftp.

[PiotrK100]

OK than, so I set up youtube channel, so you can watch and hear the noise:

[Scud]

To be clear:
The noise is also present if you run the engine with the alternator removed?

I like to use the Max BMW website's parts diagrams to see how things fit together - and the prices and part numbers are listed along with the illustrations.

I think the bearing you are concerned about is in this illustration, and that it can be replaced without removing the housing.

http://www.maxbmwmotorcycles.com/fiche/DiagramsMain.aspx?vid=51747&rnd=07012015

Also - you can use a wood dowel to isolate the noise. Put it on various parts of the engine and place your ear to the end - it's like a cheap stethoscope.

[PiotrK100]

Noise remains when alternator is removed. My guess in 99% that bearing as that is exactly the noice of worn bearing and also commes laud from that place. I do not know if you can remove that bearing without removing bellhousing but if you have such information/experience I'd be very grateful.