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View Poll Results: Crankshaft Failure
Yes : synthetic oil 16 7.27%
Yes : dino oil 14 6.36%
Yes: around 30,000 miles 11 5.00%
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  #111  
Old 4th August 2020
wedge's Avatar
wedge wedge is offline
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Quote:
Originally Posted by Crusty View Post
The crank on my '05 Roadster gave up the ghost at 57,000 miles while cruising down the Interstate at 65 MPH. I have heard that there were problems with the crankpin not being heat treated properly, but I can't prove that. I do know that there was over 1/8" up and down play in the rod when I pulled the rear cylinder off. I still have that engine in a corner of the garage.

I replaced that engine with one from a boneyard, and I've put 50,000 miles on that and everything seems OK so far. However, I'm still paranoid and I'm always listening for loud ticks, knocks or banging when I'm traveling.

I heard that the newer cranks are all OK, so I plan to buy a new (to me) 2016-up Roadster within the next year or so.

Whenever I start to get too paranoid, I just remind myself that Parrothead got over 200,000 miles out of his '06 before he changed his engine.
I wonder if that was an early 05 that got one of the bad cranks from 04?
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  #112  
Old 5th August 2020
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Rebuilt my 2006”R”, at 99,990 miles as was getting some unpleasant noises from the lower end. Don’t believe any bad parts involved much more likely the heavy amounts of flogging subjected to the machine. That’s entirely on me.
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  #113  
Old 12th August 2020
bill smith bill smith is offline
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I am not trying to rub salt but sounds like you folks need to move up to something more dependable like maybe ,,,,,,,an ironhead? Shovel?
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  #114  
Old 12th August 2020
npaisnel npaisnel is offline
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Quote:
Originally Posted by bill smith View Post
I am not trying to rub salt but sounds like you folks need to move up to something more dependable like maybe ,,,,,,,an ironhead? Shovel?
Or a Jap bike !

Or stop tinkering with the factory spec !
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  #115  
Old 13th August 2020
shanneba shanneba is offline
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For anyone that reads this thread in the future-

Hammer performance can get your crankshaft repaired by Dark Horse crankworks.

From Hammer's web site: http://www.hammerperf.com/xllowerend.shtml

What's the Best Crank?
Starting in 2008, all Buell cranks got a new 1.5" crankpin, as did the XR1200 model.
All other XL and Buell cranks came with a 1.25" crankpin.
The larger 1.5" piece greatly increases the rigidity of the crank, resisting "spread" which can cause pinion runout and breakage.
These cranks are a bolt-in replacement for 2004+ XL and 2003-2007 Buell XB models, if you buy the alternator/rotor assembly (available in both 34 and 38 tooth sprockets) and the bolt and washer as well.
They can be fitted to 91-03 XL's and 95-02 Buells with a special machining service offered by HAMMER PERFORMANCE.


Hammer Performance: http://xlforum.net/forums/showpost.p...35&postcount=5
Flywheel assembly:
23999-08 3.813 stroke (XL1200, XL883, XR1200, XB12)
24234-08 3.125 stroke (XB9)
Front sprocket/rotor assembly:
30029-08 38T version for use with 96-link primary chain 40147-04 (stock gearing for XL1200, XB12)
4589 bolt
6445 washer

In addition to the above, when you replace the sprocket shaft bearing (which should be done while you're in there), get the heavy-duty SE piece.
It's part number 24004-03B. The dealer will try to tell you it's a Twin Cam part. Ignore him.
Twin Cams and 2004+ XL's and all Buell XB's use the same sprocket shaft bearing.
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