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View Results: How did your failure happen?
No notice at all ,left me stranded on the spot. 66 22.53%
Noticed a problem ,but was able to ride back to civilazation 106 36.18%
Just checked and felt fine ,but died a few hundred miles later 17 5.80%
Noticed problem,rode bike hundreds of miles without total failure 104 35.49%
Voters: 293. You may not vote on this poll

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Old 04-05-2011, 01:37 PM   #286
Anorak
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Quote:
Originally Posted by tagesk View Post
No big deal.

[TaSK]
Wut?

What if you had to be back at work in less than two days? what if you were crossing the Atacama desert?
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Old 04-05-2011, 01:37 PM   #287
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Looks like the input shaft seal to the FD might also be leaking
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Old 04-05-2011, 01:53 PM   #288
TomDac
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last year when I got my 6K mile service, they noticed the pinion bearing "had some play" and recommended I get it replaced before it fails... I inquired just how much play and would it be wise to replace it right away.. They said it could probably wait till next year.. So, I just got it replaced over the weekend.. No failure (thankfully) but still $500 I didn't want to spend.. Grrrr.

Hopefully it'll be fine for many more miles and I won't ever have to worry about it.
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Old 04-05-2011, 02:03 PM   #289
tagesk
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Quote:
Originally Posted by Anorak View Post
Wut?

What if you had to be back at work in less than two days? what if you were crossing the Atacama desert?
No big deal FOR ME IN THE CURRENT SITUATION.
If I was in a desert I would have brought a bearing, a seal and a puller.

As it is, I rode to the nearest town, pulled into a hotel, had an excellent dinner, and am now
waiting for the parts to arrive.
No big deal.

I am in no way condoning the design of the FD!

[TaSK]
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Old 04-05-2011, 02:05 PM   #290
tagesk
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Quote:
Originally Posted by (none) View Post
Looks like the input shaft seal to the FD might also be leaking
Might be, but everything was severely spreyed with oil so it is hard to tell.

Thank you for alerting me; I'll clean it and keep an eye on it.

[TaSK]
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Old 04-06-2011, 05:05 AM   #291
JimVonBaden
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Quote:
Originally Posted by tagesk View Post
No big deal FOR ME IN THE CURRENT SITUATION.
If I was in a desert I would have brought a bearing, a seal and a puller.

As it is, I rode to the nearest town, pulled into a hotel, had an excellent dinner, and am now
waiting for the parts to arrive.
No big deal.

I am in no way condoning the design of the FD!

[TaSK]
That is the attitude of an adventurer! Even break downs are part of the adventure, so why not go with it?

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Old 04-06-2011, 08:22 AM   #292
StYd
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2005,75k

Mine too. My sister actually noticed the grinding noise on a lunch ride. No wheel play, top to bottom or side to side, but a noticeable grinding noise on rotation. Got the drive apart, and the bevel gear inner bearing is toast. Got all the bearings and seals on order, and am hoping they dont take too long to get here. About 300$ in parts.
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Old 04-06-2011, 09:49 AM   #293
rinho
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first of all, I don't know all technical word for all these parts...

Mine fails (2 years ago) because the inner part of the bearing on the of the pinion had slide a little bit and had started to grind the diff case (I was told if happens frequently)
Resulting in an oil pollution and the bearings "beginning of the end"
However I was able to ride several hundred KM without being worried

Leak appears right after a highly muddy weekend (GS Challenge)...
Maybe the leak had nothing related to the diff "on his way" failure, but at least it helps me see it before it turn into drama.

I replaced the part myself, but I bring the diff to be adjusted by a BMW mecanic master.
IMHO, the preload adjustment is the key to have the diff lasts long.
I even think the preload should be re-adjusted during the bearing life
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Old 04-06-2011, 10:27 AM   #294
Anorak
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Quote:
Originally Posted by StYd View Post
Mine too. My sister actually noticed the grinding noise on a lunch ride. No wheel play, top to bottom or side to side, but a noticeable grinding noise on rotation. Got the drive apart, and the bevel gear inner bearing is toast. Got all the bearings and seals on order, and am hoping they dont take too long to get here. About 300$ in parts.
It's all part of the adventure. Why not go with it?

Because it's trouble and expense you shouldn't have to deal with.
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'Gonna get me a six pack...push people off the highway!'

"they live off the carrion of our mutual distrust and bribe us with symbols that equate hatred with manhood."

"I mean at the end of the day, I was addicted to Starting Fluid for Christ's sake!"

"Yeah, that guy sure is terrible at touching moms"
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Old 04-06-2011, 03:54 PM   #295
def
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Location: The woods and mountains of Alabama
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Quote:
Originally Posted by rinho View Post
first of all, I don't know all technical word for all these parts...

Mine fails (2 years ago) because the inner part of the bearing on the of the pinion had slide a little bit and had started to grind the diff case (I was told if happens frequently)
Resulting in an oil pollution and the bearings "beginning of the end"
However I was able to ride several hundred KM without being worried

Leak appears right after a highly muddy weekend (GS Challenge)...
Maybe the leak had nothing related to the diff "on his way" failure, but at least it helps me see it before it turn into drama.

I replaced the part myself, but I bring the diff to be adjusted by a BMW mecanic master.
IMHO, the preload adjustment is the key to have the diff lasts long.
I even think the preload should be re-adjusted during the bearing life
I agree...if the preload is set correctly and lubrication is maintained, a FD failure probability is dramatically reduced.
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Old 04-06-2011, 05:13 PM   #296
rinho
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Quote:
Originally Posted by def View Post
I agree...if the preload is set correctly and lubrication is maintained, a FD failure probability is dramatically reduced.
Right, and that's why I change the diff oil when doing the engine oil... to check and be sure the oil is not contaminated
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Old 04-08-2011, 07:16 PM   #297
Enprize
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Quote:
Originally Posted by tagesk View Post
No big deal FOR ME IN THE CURRENT SITUATION.
If I was in a desert I would have brought a bearing, a seal and a puller.

As it is, I rode to the nearest town, pulled into a hotel, had an excellent dinner, and am now
waiting for the parts to arrive.
No big deal.

I am in no way condoning the design of the FD!

[TaSK]
Pullers are nice, as you can see from my photos I had to chisel mine off half way down the copper canyon! Next time I carry a puller too.
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Old 04-09-2011, 07:07 AM   #298
MotoPerro
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No Failures...Yet

On two oilheads with ~70K combined no failures yet, but it's always in the back of my mind. I bought BMW so that I would NOT have these types of failures. Lately, I've been re-thinking the simplicity of the chain. Chains typically don't just fail and leave you stranded. You get plenty of opportunity while cleaning and lubricating to inspect sprockets and chain for wear. If you don't take preventive action, then shame on you (or me!). Just MHO.
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Old 04-09-2011, 07:59 AM   #299
kubiak
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Quote:
Originally Posted by MotoPerro View Post
On two oilheads with ~70K combined no failures yet, but it's always in the back of my mind. I bought BMW so that I would NOT have these types of failures. Lately, I've been re-thinking the simplicity of the chain. Chains typically don't just fail and leave you stranded. You get plenty of opportunity while cleaning and lubricating to inspect sprockets and chain for wear. If you don't take preventive action, then shame on you (or me!). Just MHO.
i always thought if they had a belt drive on the gs that would be nice, they would have to enclose it somehow though to keep debris out. then just carry a spare belt if it ever needed one.
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