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Sheered a bolt-head...
 

[Closed] Sheered a bolt-head off by over tightening help required please...

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[#3945296]

As the title, the bolt-head has snapped off leaving bolt shaft in stem!

What's best to get out? Cheers


 
Posted : 05/05/2012 4:25 pm
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if it is the face plate then remove all the other bolts take of the face plate and remove by using pliers/molgips or putting a cut in the top for a screwdriver
If the bit that goes on the fork
MMMMM
drill out with small drill but will take a while with a steel bolt to do this


 
Posted : 05/05/2012 4:28 pm
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It's the steerer clamp. Tried drilling and made very little in roads with a cordless.

Must try with a corded and not over tighten the buggars in future!

Cheers


 
Posted : 05/05/2012 4:39 pm
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Cutting fluid helps. And a bolt extractor makes the job a piece of cake


 
Posted : 05/05/2012 4:48 pm
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Shorty - bought an extractor set - do I need to drill a 'pilot-hole' with an ordinary bit first?


 
Posted : 05/05/2012 4:50 pm
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Very important to use a good quality high speed steel (HSS) drill bit, use a center punch to make a mark to get the drill started, then I'd use a file tang in the hole to unscrew the damaged thread.


 
Posted : 05/05/2012 4:53 pm
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Yeah a pilot hole with a good quality drill bit


 
Posted : 05/05/2012 4:54 pm
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might be a job for someone with a pillar drill...


 
Posted : 06/05/2012 10:58 am
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I did it with a standard hand drill, if you're careful it is fairly simple.


 
Posted : 06/05/2012 11:05 am
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Can you cut it in the middle between the clamping sides this will releave the pressure and make it easier to remove the bolt. Also having the other bolt tight can help in getting the broken bolt out.


 
Posted : 06/05/2012 11:13 am
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Pics would help a lot. Depending on exactly what's happened, I've seen shafts removed by running a hacksaw down the slot to unscrew the shaft. A lot depends on whether the shaft is loaded or not.

Does the shaft sit in an open thread or a blind one?


 
Posted : 06/05/2012 11:32 am