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snapped head bolt, any suggestions?

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Old 19-12-2009, 01:25 PM
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liam-rst
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Default snapped head bolt, any suggestions?

as above, taken me cab off road for winter an thought id give it a bit of love, taken the head off for some porting an big valves but snapped a bolt in the process, ive tried using one of them reverse thread taper stud remover but didnt wanna force it too much, does anyone have any suggestions on wot to do as i cant move the at the moment an dont really wanna take the bottom end out if i dont need to
any help much appreciated
Old 19-12-2009, 01:43 PM
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mechanic28
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how much of the bolt is showing
Old 19-12-2009, 01:59 PM
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tabetha
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Needs serious heating for the best chance of removing broken bit, although drilling out as far as you dare with ever larger bits, with patience can do it as the remains of the bolt get so thin you can collapse them in with a old screwdriver etc, messy and long winded but works.
The only easy out I would use is the snap on square taper spiral.
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Old 19-12-2009, 10:45 PM
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the bolt has snapped off pretty much flush with the block, i could drill it out myself but really dont wanna take the chance of damaging the thread, if i heat it up and try the taper thing again im hoping that might work
Old 19-12-2009, 10:55 PM
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stickertone
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is there enough protruding to weld a nut onto???
Old 19-12-2009, 10:57 PM
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nah mate only about 1mm
Old 19-12-2009, 11:06 PM
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stickertone
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can you not put the nut over it and weld through the hole???
Old 19-12-2009, 11:07 PM
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hopefully will come undone with some heat!
Old 19-12-2009, 11:20 PM
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ill have a stab at heating it up first, will a blow torch heat this up enough or will i need acetelyn? if this dont work ill try welding through the nut i didnt think of that lol.
thanx for all the suggestions fellas been a great help much appreciated
Old 19-12-2009, 11:38 PM
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mechanic28
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blow torch is worth a crack mate!would be careful using a acetelyn torch tho!!
Old 19-12-2009, 11:39 PM
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saph_Al
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You'll need the oxy bottles to get any sort of heat into it weldin a nut on os a good idea but do doubt if u could get enough penetration through such a small area , bottles and an easyout sounds ur best bet . good luck buddy
Old 19-12-2009, 11:57 PM
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cheers fellas ill let u kno how i get on, 2 weeks off work will drive me wild with boredom so wanna keep occupied an get as much done while i have the time
Old 20-12-2009, 01:27 PM
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This is probably the wrong spelling and i cant remember who makes it but there is a penertrating oil rost off ice that is brilliant, i've removed many a broken seized in stud/bolt with it. If you do decide to drill it i would highly recomend using left handed drill bits as they can somtimes remove bolts when they catch at the bottom of the bolt.
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