help snapped bolt what do i do?
#4
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If there is any thread sticking out first thing to do is hit it a few times as sqaure as possible to try and relieve some of the corosion that it has on its thread , soke it with wd40 overnight if posible and then very gently try removing it , but try tightening it slightly first and working it back and forth constantly , if no thread is visible then very carefully centre punch it then drill out , firstly to say 3mm and keep as square as possible , as this will aid the cause if you need to drill it out totally , try and drill all the way through the bolt if possible then soak again with wd40 or similar , at this point very carefully try using an easy out and see how siezed it is , if still solid the only way is to try and drill out and the helicoil it , some good garages have helicoils or engine builders ..... I have a full set cos of my past , but live a bit far away
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#5
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Before you go drilling it out bear this in mind.....
There are things called screw extractors, basically a left handed thread on a taper....you drill a small hole in the centre of the bolt thats left...wind in the screw extractor with a rathcet (reverse on ratchet) and it grips the bolt and removes it...you can do the soaking with wd40 and tapping with hammer to help release it the same as others have said.
You can get them from screwfix and other good hardware places....if you can get the bolt out this way then there's no need to helicoil as it doesnt damage the original threads...and you will pay a hell of a lot less for a set of extractors than you will do for a helicoil at a garage![Wink](https://passionford.com/forum/images/smilies/icon_wink.gif)
I've never not been able to remove a snapped bolt with my set yet![Top](https://passionford.com/forum/images/smilies/smile011.gif)
Link to screwfix.....
http://www.screwfix.com/prods/18643/...xtractor%20Set
Ł2.68 inc vat you cannot go wrong
with a set of these.
HTH
Dan
There are things called screw extractors, basically a left handed thread on a taper....you drill a small hole in the centre of the bolt thats left...wind in the screw extractor with a rathcet (reverse on ratchet) and it grips the bolt and removes it...you can do the soaking with wd40 and tapping with hammer to help release it the same as others have said.
You can get them from screwfix and other good hardware places....if you can get the bolt out this way then there's no need to helicoil as it doesnt damage the original threads...and you will pay a hell of a lot less for a set of extractors than you will do for a helicoil at a garage
![Wink](https://passionford.com/forum/images/smilies/icon_wink.gif)
I've never not been able to remove a snapped bolt with my set yet
![Top](https://passionford.com/forum/images/smilies/smile011.gif)
Link to screwfix.....
http://www.screwfix.com/prods/18643/...xtractor%20Set
Ł2.68 inc vat you cannot go wrong
![Big Grin](https://passionford.com/forum/images/smilies/icon_biggrin.gif)
HTH
Dan
Last edited by SillyFezzaMk1; 05-04-2009 at 07:49 PM.
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