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How can I remove a snapped bolt

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Homer:
Hi All,

After replacing the swivel pin bearings I had an oil leak from the swivel housing seal. Turns out I hadnt tightened the bolts up. Anyway whilst tightening them I snapped one if the bottom ones. It boke off about 2 mm inside the screw hole. What tool can I use to remove it and where can I get one from??


Cheers


Mark

Hightower:
How about one of these http://www.altecweb.com/home.asp?cat=Subcategory5+Piece+Screw+Extractor+Set

I think Halfords stock them.

Tyke:
A good quality stud extractor should do the job. Don't buy cheap ones, they may cause even more trouble.

You will need to drill a pilot hole down the centre of the broken bolt and then use the extractor, held in proper tap wrench, to work the screw out.

The whole set-up really needs to be rigid while you do this. There is a very real chance that if it moves, during drilling or extraction, the drill or the extractor could break and then you are in real trouble.


Remember, cheap extractors are rubbish, they will break and possibly render the whole swivel assembly as scrap. If the worst happens you will have to remove the whole swivel ball and get it to a good engineering shop for removal. It isn't practical to remove a broken extractor or drill in the normal home workshop.


Go for the largest and best quality extractor that will fit and good luck.

Tyke:
Something like this shouldn't cause you any problems. Much better quality and complete with guides, nuts,  etc  :wink:


http://www.fine-tools.co.uk/Merchant2/merchant.mvc?Screen=PROD&Product_Code=SO6&Category_Code=

Homer:
Thanks for the info!


Regards


Mark

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