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[Closed] stuck cinch crank - hammertime?

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[#7775623]

Raceface turbine cinch crank. In theory should just unscrew on drive side (standard left-loose direction) and pull off.

I can't budge the allen bolt at all, even with park tool long handled allen key. Am I missing some thing stupid or does it require a massive amount of force? If so would it be stupid to use a hammer to 'shock' it loose?


 
Posted : 18/04/2016 2:55 pm
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If it wasn't greased, it might have seized. Have you undone the preload adjuster? (not that it should make a big difference)


 
Posted : 18/04/2016 3:20 pm
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No, didn't undo preload, but will give that a go.

Last time it was taken off was by a LBS when new PF BB fitted so I imagine/hope was greased.

If seized, wd-40 overnight and a hammer?


 
Posted : 18/04/2016 3:37 pm
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Big hammer!

If it's anything like the other RF cranks, once they're stuck, they're stuck.

Breaker bar and allen head attachment may be required, possible heat too, plusgas is a good idea before all of that.


 
Posted : 18/04/2016 3:42 pm
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When I took mine off to replace the chainring, I heaved on it and thought it was stuck too.....it was almost 'f##k it...' Before it came loose. Really tight. Don't forget that you need a crank extractor to remove the arm too....it doesn't just pull off easy.


 
Posted : 18/04/2016 3:44 pm
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I generally just use a hammer to start with. Much easier to to get it to budge and then unscrew as normal. Youll have put it on with a lot of Newtons, so will need a lot to get it undone.


 
Posted : 18/04/2016 3:54 pm
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If it's anything like the other RF cranks, once they're stuck, they're stuck.

Dont like the sound of that!

Hammer/bar time it is!!


 
Posted : 18/04/2016 4:35 pm
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Ended up coming off easily, I just zip tied the long handled Allen key to a handy 4ft bar of galv., stood on the pedal and pushed!


 
Posted : 19/04/2016 6:26 am