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Old 04-30-2012, 05:45 AM   #361
sgtpaco
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Quote:
Originally Posted by rubbermuh View Post
Hello from Austria,

my stator died too after 73.000km.

The problem is not the stator himself, but the flywheel! There is a new generator offered by BMW (partnumber 12 31 8 524 422), and the new flywheel has big holes for oil to cool the stator!

At the stator I could find no difference (although there may be one - I am no exert for electrics!)


Thank you for the information
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Old 04-30-2012, 06:17 AM   #362
JRWooden
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Quote:
Originally Posted by rubbermuh View Post
Hello from Austria,

my stator died too after 73.000km.

The problem is not the stator himself, but the flywheel! There is a new generator offered by BMW (partnumber 12 31 8 524 422), and the new flywheel has big holes for oil to cool the stator!

At the stator I could find no difference (although there may be one - I am no exert for electrics!)
What ... dang Germans took my idea and I get no credit????
How about they send me a free upgrade kit?
(oh ...... alright ... nevermind .... they were probably working on it a year ago..... )

Seriously I'll bet it fixes the problem!
Max BMW here in the USA still lists the P/N as: 12 31 7 690 427
so I guess the "engineering refinement" is very new.

Pity that the "fix" will cost those of us that are out of warranty the better part of $800 USD.

+1 on the picture it would be nice to see exactly what has been done to the flywheel if possible.
and... I realize I'm really stretching it here... but the weight of the new part would be nice as well
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Old 04-30-2012, 06:38 AM   #363
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Recall?

Hey Joel....
You don't suppose this could become a recall item do you?

Without stretching the point tooooooooooooo far,
I think I could build a case that says that stator-failure is a serious safety issue?

JRWooden screwed with this post 04-30-2012 at 06:51 AM
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Old 04-30-2012, 11:57 AM   #364
vtbob
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Hi Temp insulation

Brain finely switched in and remembered...The insulation material that we used in aircraft engines wiring was Kapton. It is rated up to 400C. My memory was that it was wound on the wires, not extruded, but things may be different now.
Dupot developed it. You can wiki it.
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Old 04-30-2012, 01:53 PM   #365
RadoR6
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Pity that the "fix" will cost those of us that are out of warranty the better part of $800 USD.

JRWooden,don't be so worried.If something goes wrong with my alternator, Munich is not that far from me when going home and whilst there kicking MR. Von Kuenheims' butt or whoever comes first, I'll be thinking of you too...
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Old 04-30-2012, 02:11 PM   #366
JoelWisman
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Quote:
Originally Posted by JRWooden View Post
Hey Joel....
You don't suppose this could become a recall item do you?

Without stretching the point tooooooooooooo far,
I think I could build a case that says that stator-failure is a serious safety issue?
It could, but I tend towards the doubting side.

At the risk of upsetting some people, BMW USA has never once had an involuntary recall on a BMW motorcycle, though they have had more then a few on the car side.

Every write-in campaign to NTSB and NHTSA regarding a BMW motorcycle has amounted to absolutely nothing! The NHTSA considers motorcycles "inherently dangerous" and pays almost zero attention to them. They HAVE opened investigations and even fined BMW for a failure to provide documentation in a timely fashion. (The joke on the motorcycle side is you have to respond to the NHTSA's demand letter within 1.9 years because at 2 years they will fine you a little pocket change)

When a recall occurs in the USA on the motorcycle side, it is because BMW is seeking to limit litigation liability, or just claiming they are as an excuse to force Germany's hand.

SO, a recall on the stator / flywheel will occur if BMW USA feels like it and won't if they don't.


All that said, I want to see this new flywheel in the parts channel. It may not come to all countries or at least not all at the same time, or someone could be mistaken about it which I certainly hope is not the case.
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Old 04-30-2012, 02:21 PM   #367
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Thanks Joel!

Sigh............. I was afraid of that ....
I'll be calling my parts guy tomorrow for a look see on that new P/N ...
He's pretty handy.
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Old 04-30-2012, 02:24 PM   #368
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This site is pretty low on info... confirms the part no exists tho.
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Old 04-30-2012, 02:37 PM   #369
JoelWisman
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http://www.realoem.com/bmw/showparts...97&hg=12&fg=31

above site shows both new and old part numbers. Proof that at the very least, we have a new part number :)
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Old 05-01-2012, 11:44 AM   #370
Olvi
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Add me to the list. One pole completely out of insulation. And look how dry. It is near the connection to the wires going out of stator. We tested the bike day before opening the cover and now it was dead dry. Other poles were quite OK but at the three-four bottommost poles coating was a bit soft and sticky. They didn't smell burnt



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Old 05-01-2012, 01:08 PM   #371
JRWooden
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Olvi ....
Sorry for your misfortune ... it likely awaits most of us .....
Are you under warranty?
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Old 05-01-2012, 02:59 PM   #372
Indy Unlimited
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How many miles Olvi?
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Old 05-01-2012, 03:18 PM   #373
JRWooden
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Quote:
Originally Posted by JoelWisman View Post
http://www.realoem.com/bmw/showparts...97&hg=12&fg=31

above site shows both new and old part numbers. Proof that at the very least, we have a new part number :)
I talked to my buddy the parts manager today.
He says the new part number is loaded, but there is no pricing and it is not available for order here in the USA ... yet.
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Old 05-01-2012, 09:44 PM   #374
Olvi
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Quote:
Originally Posted by JRWooden View Post
Olvi ....
Sorry for your misfortune ... it likely awaits most of us .....
Are you under warranty?
Not under warranty but I'll see some other option. In Europe and especially in our country, warranty doesn't tell all. Here counts also an expected life span of a product (product Liability) and there is a possibility for some (partial) refund.

50 000 km so is it something like 31 000 miles.
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Old 05-01-2012, 10:01 PM   #375
MonsterJ
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Mine crapped out today. Pretty much right at 50K miles. Awesome. Has anyone sourced a drop in replacement? I scanned the 300+ posts and didn't really see that as an option yet. I had a 4 day ride planned starting on Saturday. I'd next day one if I could find one and slap it in on Friday. Sounds like the new one isn't available either.

Looks like I'll be taking the wife's grey and pink F800GS this weekend.

FML.
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