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PostPosted: Sat Jul 13, 2013 3:14 pm 
Gold Trader / MacRetro rider
Gold Trader / MacRetro rider
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Joined: Sun May 25, 2008 11:03 am
Posts: 18207
Location: Sunny Glasgow
My cranks have just turned by themselves. :shock: :shock:

Ive got the bike on the stand with the wheels and chain off, in prep for polishing and a wheel change.
Its been sitting on the stand for a good hour,by itself, doing nothing. I had been spinning the cranks to check out a bend in the outer ring but that was the hour ago and ive been sitting gaming since(commitment eh?).
Im sitting here at the desk and the bike is hanging 7' away. I have no windows open and the house is pretty much sealed.

Then for no apparent reason the cranks spun a full turn then started the rocking back and forth as they do with the chain off. ( im now glancing at it all the time to see it it does it again :shock: )

OK thinking it could have swung on the pendulum till it settled before, but it runs really smoothly and it couldnt have finished settling with the weight at the top :? So what caused it to turn a full turn. Perfectly balanced maybe?? A fly settles and that sends the weight down,it carries over the top but without force behind it(flew away) it cant complete a 2nd turn.

http://www.youtube.com/watch?v=XVSRm80WzZk :shock: :shock:


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PostPosted: Sat Jul 13, 2013 3:16 pm 
Gold Trader / PoTM Winner / RB Rider
Gold Trader / PoTM Winner / RB Rider
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Joined: Tue Feb 26, 2013 6:26 pm
Posts: 16922
Location: 54 Festive Road Winchcombe GLOUCS Yarp...
:mrgreen:

Looking for the lost crank..................


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PostPosted: Sat Jul 13, 2013 3:24 pm 
Karma Queen / Cake Meisterin
Karma Queen / Cake Meisterin
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Joined: Thu Jul 27, 2006 10:02 pm
Posts: 6736
Location: North Yorkshire
I'm more worried that your in a sealed house with no windows open in this weather :shock: you got air-conditioning or something?

Alison


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PostPosted: Sat Jul 13, 2013 4:43 pm 
Classified Mod
Classified Mod

Joined: Wed Dec 30, 2009 8:34 pm
Posts: 12694
Location: Fife in Scotland
Alison its just incase the neighbours smell the funny cigarettes :shock:













:mrgreen:


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PostPosted: Sat Jul 13, 2013 6:06 pm 
Retro Guru
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Joined: Mon Mar 28, 2011 9:29 pm
Posts: 1877
Location: Somerset
only one pedal mounted? Was their a chain on the rings?


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PostPosted: Sat Jul 13, 2013 7:21 pm 
Old School Grand Master
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Joined: Sat May 20, 2006 2:56 pm
Posts: 4776
Location: No brakes? Way to commit soldier.
Definately ghosts.

Sleep tight.


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PostPosted: Sat Jul 13, 2013 8:16 pm 
Retro Guru
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Joined: Thu Jun 23, 2011 11:25 pm
Posts: 1785
Location: It's not easy being a dolphin.
That's not normal. What kind of cranks and BB are we talking about?


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PostPosted: Sat Jul 13, 2013 8:25 pm 
Gold Trader
Gold Trader
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Joined: Thu Oct 01, 2009 12:31 pm
Posts: 1281
Location: Munich, Germany
What do you know about the history of your bike? It is clearly a ghost. The question is if he is friendly or not....


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PostPosted: Sat Jul 13, 2013 8:30 pm 
Gold Trader / PoTM Winner / RB Rider
Gold Trader / PoTM Winner / RB Rider
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Joined: Tue Feb 26, 2013 6:26 pm
Posts: 16922
Location: 54 Festive Road Winchcombe GLOUCS Yarp...
Maybe it was loooooooooooooooooose?


Last edited by The History Man on Sat Jul 13, 2013 9:14 pm, edited 1 time in total.

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PostPosted: Sat Jul 13, 2013 9:13 pm 
Dirt Disciple

Joined: Sat May 04, 2013 9:32 pm
Posts: 84
Location: Leeds, West Yorkshire
Surely something to do with bb? Maybe on its way out :)


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