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  #1  
Old 05-31-2018, 01:20 AM
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JC_Squared JC_Squared is offline
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Front wheel bearing failure

2007 K12GT 58K miles.

Well the other night I was coming home from work and my brakes where acting really strange and my front end sounded rough and sworda jerking. I figured things where about to go bad so I just hoped I made it home.

I did not, coming out o a curve, front wheel locked up and I slid into the ditch. Luckily I landed upright leaning against the ditch so it wasn't that bad of an impact.

Anyways, once I got the bike home I took my front tire of to find one of my bearings at total failure! Just thought I would share!







Time for work!




JC
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  #2  
Old 05-31-2018, 06:59 AM
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Re: Front wheel bearing failure

That's messed up! Glad you weren't hurt JC.
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Old 05-31-2018, 12:38 PM
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Re: Front wheel bearing failure

Yikes!
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Old 05-31-2018, 01:30 PM
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Re: Front wheel bearing failure

The front is unforgiving... You were lucky.


Glad you could get out of it unscathed.


Cheers
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Old 05-31-2018, 04:11 PM
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Re: Front wheel bearing failure

Glad you're okay! You don't happen to pressure wash your bike? Normal front wheel maintenance changes these bearings at 75K miles. Most go longer. But then again you have a heavy bike there. A good tire guy will check the bearing condition at change intervals. Should be smooth and turn freely with your fingers jammed in there.
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Old 05-31-2018, 11:54 PM
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Re: Front wheel bearing failure

That is exactly what happened to my 06 K1200GT 3 years ago
But I was not smart enough to figure out why the brake lever was so smushy
So I traded for a RT
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Old 06-01-2018, 08:34 AM
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Re: Front wheel bearing failure

Same thing happened on my 06 K1200S a few years back...Fortunately I also made it back home before discovering the culprit... Scary stuff...
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Old 06-01-2018, 10:26 AM
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Re: Front wheel bearing failure

Glad you are Ok. Could have been a lot worse.

what is the designation of those bearings?

Realoem only states 25x47 grooved ball bearing, to be able to order one needs to know the width of the bearing as well.

if the bearings are 25x47x12 a bearing change only costs 32usd for two ball bearings and 2 new seals. Thats pocketchange so one could change each year just to be safe.
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Old 06-01-2018, 04:46 PM
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Re: Front wheel bearing failure

Quote:
Originally Posted by OILHEAD
That is exactly what happened to my 06 K1200GT 3 years ago
But I was not smart enough to figure out why the brake lever was so smushy
So I traded for a RT




Good move!
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This is only a good thing when applied to riding... or sex!
Ride West 2008
http://www.i-bmw.com/showthread.php?p=191559#post191559
Ride West 2009 http://www.i-bmw.com/showthread.php?t=24292
Dad & daughter Ride 2011 http://www.i-bmw.com/showthread.php?t=35470
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Old 06-01-2018, 07:10 PM
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Re: Front wheel bearing failure

Had front bearing failure on my '07 K1200GT. Seems I torqued the front axle way too tight the first time I changed the front tire. Failure occurred at about 9K--entirely my fault, in this case.******************************************************* MdMn*****
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Old 06-01-2018, 07:16 PM
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Re: Front wheel bearing failure

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Old 06-01-2018, 10:58 PM
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Re: Front wheel bearing failure

I've seen front wheel bearings fail at 20k on some bikes and 100k on others, you just never know. When I say 'fail', I meant 'detected in advance' bad, not 'crash' bad. Every time you have the front wheel off to change a tire rotate the bearings with your thumb and feel for any sign of roughness, and replace if any is felt.
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Old 06-02-2018, 01:18 AM
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Re: Front wheel bearing failure

Thanks Everyone! I had someone looking out for me on this one for sure!

I have decided to just put the bike out of commission for a few weeks to do some work and install my new clutch ive had for months, spark plugs, valves, brake pads and bleed clutch and brakes. Just everything I need to do at the end of this season but this scared me enough to check this bike up and down!

Anyways, I appreciate everyone's response!

Thanks,
JC
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Old 06-02-2018, 11:07 AM
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Re: Front wheel bearing failure

Quote:
Originally Posted by Louis
Good move!
Says the ‘’friend’’ who offered me 100$ for my K1200GT when the timing chain let me down
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Old 06-02-2018, 08:10 PM
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Re: Front wheel bearing failure

I've got an '08 GT with 58K on it. I remove my wheels and bring them in individually to get new tires mounted, so it gives me an opportunity to check brake pads and bearings. My front bearings were still OK, but I did feel a slight rough spot on one so just replaced them anyway. AllBalls Racing make affordable replacements.
Last winter I also did the big maintenance routine, plugs, valve check, coolant change, brake flush, brake pads. Many of the valves were slightly out of spec, and the others were on the high side so I calibrated them with new spheres to all be close to the low limit.
Make sure you assemble a vacuum system to fill the coolant back up also.
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Old 06-02-2018, 09:56 PM
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Re: Front wheel bearing failure

Quote:
Originally Posted by hmark
I've got an '08 GT with 58K on it. I remove my wheels and bring them in individually to get new tires mounted, so it gives me an opportunity to check brake pads and bearings. My front bearings were still OK, but I did feel a slight rough spot on one so just replaced them anyway. AllBalls Racing make affordable replacements.
Last winter I also did the big maintenance routine, plugs, valve check, coolant change, brake flush, brake pads. Many of the valves were slightly out of spec, and the others were on the high side so I calibrated them with new spheres to all be close to the low limit.
Make sure you assemble a vacuum system to fill the coolant back up also.

Thanks for the All Balls tip, didn't know about them. When you did the valve adjust did you need any special tools to re-install the cams?
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Old 06-04-2018, 10:19 PM
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Re: Front wheel bearing failure

Quote:
Originally Posted by millers
Thanks for the All Balls tip, didn't know about them. When you did the valve adjust did you need any special tools to re-install the cams?
The manual does show a special tool for removing and replacing the cam bearing caps. The caps are under valve spring tension and the tools make it easier than trying to loosen all the nuts evenly without possibly putting a twist on the cap .
I just made my own, it was simple enough and worked great.
Do NOT attempt this job without a factory manual. It is not a job for the faint of heart! There's a lot of careful procedure involved and at any moment you could drop a sphere or nut down into you engine if you do hot take precaution! You'll also need to fabricate a vacuum manifold to pull new coolant back into the engine. DON'T just pour it in!
Other than that, you'll feel pretty accomplished for pulling it off.
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  #18  
Old 07-26-2018, 05:48 PM
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Re: Front wheel bearing failure

Had the same thing happen to me last year. I had felt something odd the weekend prior, but couldn't find anything. I didn't find it until I took the brake calipers off after I did some high speed runs through the mountains! Freaked me out, to say the least!
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