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Buell Forum » Old School Buell » Archive through April 12, 2015 » WTF HAPPENED HERE???? OPINIONS?? « Previous Next »

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K12pilot
Posted on Wednesday, March 04, 2015 - 09:34 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)


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Hootowl
Posted on Wednesday, March 04, 2015 - 09:39 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

One of the magnets came unglued. It didn't take kindly to being in a blender, and put its proverbial dick in the mashed potatoes.
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Natexlh1000
Posted on Wednesday, March 04, 2015 - 09:40 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Shaft broke at speed, forward momentum forced the alternator bell to keep spinning on the stator, grinding it down, melting it, and shorting it out.

Pretty much a perfect storm of failure.
I have never seen the output shaft of an H-D derived engine break like that.

Is this yours?
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Hootowl
Posted on Wednesday, March 04, 2015 - 09:41 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Oooh, I didn't see the mangled crank before. That's going to be expensive. : (
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Oopezoo
Posted on Wednesday, March 04, 2015 - 09:59 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Holy Shat!
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Ft_bstrd
Posted on Wednesday, March 04, 2015 - 10:02 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Wow! Craptastic!

Looks like an engine part out to me.

Yikes.

I'm thinking there had to be some extreme forces at work.

Drag bike?
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K12pilot
Posted on Wednesday, March 04, 2015 - 10:02 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Definitely broke at speed the PO said he was shifting into 3rd when the shit hit the fan, but WHY??

It is mine sort of.

I bought the bike for parts..

Bike is being parted out in classifieds

(Message edited by k12pilot on March 04, 2015)
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Reepicheep
Posted on Wednesday, March 04, 2015 - 10:38 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Crank nut snug and tight? Maybe magnet let go, maybe crank nut backed off (torque spec wrong in service manual) and bell went askew and spinny bits and stationary bits occupied same space at same time.

Terrible news, awesome pictures! Wow. Imagine what it takes to shear that shaft like that.
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Harleyelf
Posted on Wednesday, March 04, 2015 - 12:28 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

What's the adjuster shoe look like? If it separated at high rpm, it might have wedged the primary chain, causing the rotor to immobilize while the crank was still turning.

Teeth broken off sprocket? Something sure froze up while something it was attached to was at high rpm. Did the wheel lock up or the transmission explode?
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Buellistic
Posted on Wednesday, March 04, 2015 - 12:55 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Primary Chain ran "TOO TIGHT" ???
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Fxdrydr
Posted on Wednesday, March 04, 2015 - 01:28 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Whether the magnet coming loose caused a chain of events leading to the shaft failure or a bad bearing, or over-tightened primary chain caused the shaft failure in turn shredding the magnets - either way, not pretty.

Oil in the engine? Primary? From the look of the remaining end of the shaft, it looks like it got pretty hot. Heat and stress could cause something like that. Stroker time!
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Court
Posted on Wednesday, March 04, 2015 - 03:20 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Thy whirly parts doth sought communion with the sun . . . . . . . .

I'm pretty sure . . . .at my age . . . that's what my internals look like.
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Mhlunsford
Posted on Wednesday, March 04, 2015 - 04:03 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I had the 4 bolt mag break on my M2, looked similar but did not break the shaft. go to the newer 8 bolt mag
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K12pilot
Posted on Wednesday, March 04, 2015 - 08:26 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Did some takin apart today...


Primary cover was taken of by the PO's friend, I got a box with the chain & rotor in it

Crank nut is snug as a bug,
Crank spins smooth & no play in the bottom end
no teeth missing,
Trans looks fine to me
oil in engine
Idk if the rear wheel locked, not sure if it would in this case
pic of cover & shoe
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Kalali
Posted on Wednesday, March 04, 2015 - 09:26 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Is this the XB12R you recently bought? Love carnage pictures....
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Dutch_x1
Posted on Wednesday, March 04, 2015 - 09:37 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I also had the 4 bolt mag break on my x1 ,but didn`t break the shaft. replaced it for the newer 8 bolt mag

at harley they told me the 4 bolt mag wasn`t a official recall but something they should recommend replacing.... those clowns new about this all the time and never mentioned it till it was to late .
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Hootowl
Posted on Wednesday, March 04, 2015 - 09:50 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Is that not an 8 bolt version?
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Steeleagle
Posted on Thursday, March 05, 2015 - 12:44 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Been there. Bought it this way.


crank


Mine had/has NO noted internal damage to the case/cover. Call me lucky (except for the crank part).
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Natexlh1000
Posted on Thursday, March 05, 2015 - 08:32 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

What do you suppose it was? flaw in heat treating? Little crack gradually growing out?
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Mhlunsford
Posted on Thursday, March 05, 2015 - 03:50 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

your right that is a 8 bolt mag -whow
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Ratbuell
Posted on Thursday, March 05, 2015 - 10:35 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I'm pretty sure . . . .at my age . . . that's what my internals look like.


I have x-rays from 2008 that PROVE my internals look that way...

For the bike...wow. Whatever happened, it was welding for a while until everything gave up the ghost!
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Mhlunsford
Posted on Friday, March 06, 2015 - 02:17 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

The HD heart could not keep up with the BUELL spirit - a moment of silence please.
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