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busted header bolt
95 wrangler with the head bolf broken off flush. suggestions?
thanks |
Re: busted header bolt
On Thu, 13 Sep 2007 10:33:36 -0700, j <321bfd@excite.com> wrote:
>95 wrangler with the head bolf broken off flush. suggestions? > > >thanks Get a Cobalt bit (not high speed steel) and drill center out and try a easy out. It that fails, drill hole larger and retap threads. Note, you want a Cobalt bit because not only will they cut it good (far better than steel bits), they are also harder to break by accident. ----------------- TheSnoMan.com |
Re: busted header bolt
On Thu, 13 Sep 2007 10:33:36 -0700, j <321bfd@excite.com> wrote:
>95 wrangler with the head bolf broken off flush. suggestions? > > >thanks Get a Cobalt bit (not high speed steel) and drill center out and try a easy out. It that fails, drill hole larger and retap threads. Note, you want a Cobalt bit because not only will they cut it good (far better than steel bits), they are also harder to break by accident. ----------------- TheSnoMan.com |
Re: busted header bolt
On Thu, 13 Sep 2007 10:33:36 -0700, j <321bfd@excite.com> wrote:
>95 wrangler with the head bolf broken off flush. suggestions? > > >thanks Get a Cobalt bit (not high speed steel) and drill center out and try a easy out. It that fails, drill hole larger and retap threads. Note, you want a Cobalt bit because not only will they cut it good (far better than steel bits), they are also harder to break by accident. ----------------- TheSnoMan.com |
Re: busted header bolt
On Thu, 13 Sep 2007 10:33:36 -0700, j <321bfd@excite.com> wrote:
>95 wrangler with the head bolf broken off flush. suggestions? > > >thanks Get a Cobalt bit (not high speed steel) and drill center out and try a easy out. It that fails, drill hole larger and retap threads. Note, you want a Cobalt bit because not only will they cut it good (far better than steel bits), they are also harder to break by accident. ----------------- TheSnoMan.com |
Re: busted header bolt
j wrote:
> 95 wrangler with the head bolf broken off flush. suggestions? > > > thanks > What is it flush with? The head? If so I have heard of folks putting a nut there and welding it in the center of the nut onto the stub if there is even just a little showing, then using that. I have heard of and seen folks use a fire wrench (cutting torch) and blow the sucker out with that. It seems to work. I have heard left hand drill bits can work. Things like 'easy outs' are a failure 99% of the time I have seen, used or heard of their use. 'I' can drill out 99% of the ones I go after without damaging threads much if any. Many years of Practice from living in the rust belt helps there. :-( I use a small bit and drill a pilot hole offset from the center of the bolt. I then use a bit that will fit from this pilot 'just' to the edge of the threads and drill. This leaves a crescent moon shape of the bolt that can be backed out with a screwdriver or hammer and center punch. Good Luck! Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's - Gone to the rust pile... Canadian Off Road Trips Photos: Non members can still view! Jan/06 http://www.imagestation.com/album/pi...?id=2115147590 (More Off Road album links at bottom of the view page) |
Re: busted header bolt
j wrote:
> 95 wrangler with the head bolf broken off flush. suggestions? > > > thanks > What is it flush with? The head? If so I have heard of folks putting a nut there and welding it in the center of the nut onto the stub if there is even just a little showing, then using that. I have heard of and seen folks use a fire wrench (cutting torch) and blow the sucker out with that. It seems to work. I have heard left hand drill bits can work. Things like 'easy outs' are a failure 99% of the time I have seen, used or heard of their use. 'I' can drill out 99% of the ones I go after without damaging threads much if any. Many years of Practice from living in the rust belt helps there. :-( I use a small bit and drill a pilot hole offset from the center of the bolt. I then use a bit that will fit from this pilot 'just' to the edge of the threads and drill. This leaves a crescent moon shape of the bolt that can be backed out with a screwdriver or hammer and center punch. Good Luck! Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's - Gone to the rust pile... Canadian Off Road Trips Photos: Non members can still view! Jan/06 http://www.imagestation.com/album/pi...?id=2115147590 (More Off Road album links at bottom of the view page) |
Re: busted header bolt
j wrote:
> 95 wrangler with the head bolf broken off flush. suggestions? > > > thanks > What is it flush with? The head? If so I have heard of folks putting a nut there and welding it in the center of the nut onto the stub if there is even just a little showing, then using that. I have heard of and seen folks use a fire wrench (cutting torch) and blow the sucker out with that. It seems to work. I have heard left hand drill bits can work. Things like 'easy outs' are a failure 99% of the time I have seen, used or heard of their use. 'I' can drill out 99% of the ones I go after without damaging threads much if any. Many years of Practice from living in the rust belt helps there. :-( I use a small bit and drill a pilot hole offset from the center of the bolt. I then use a bit that will fit from this pilot 'just' to the edge of the threads and drill. This leaves a crescent moon shape of the bolt that can be backed out with a screwdriver or hammer and center punch. Good Luck! Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's - Gone to the rust pile... Canadian Off Road Trips Photos: Non members can still view! Jan/06 http://www.imagestation.com/album/pi...?id=2115147590 (More Off Road album links at bottom of the view page) |
Re: busted header bolt
j wrote:
> 95 wrangler with the head bolf broken off flush. suggestions? > > > thanks > What is it flush with? The head? If so I have heard of folks putting a nut there and welding it in the center of the nut onto the stub if there is even just a little showing, then using that. I have heard of and seen folks use a fire wrench (cutting torch) and blow the sucker out with that. It seems to work. I have heard left hand drill bits can work. Things like 'easy outs' are a failure 99% of the time I have seen, used or heard of their use. 'I' can drill out 99% of the ones I go after without damaging threads much if any. Many years of Practice from living in the rust belt helps there. :-( I use a small bit and drill a pilot hole offset from the center of the bolt. I then use a bit that will fit from this pilot 'just' to the edge of the threads and drill. This leaves a crescent moon shape of the bolt that can be backed out with a screwdriver or hammer and center punch. Good Luck! Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's - Gone to the rust pile... Canadian Off Road Trips Photos: Non members can still view! Jan/06 http://www.imagestation.com/album/pi...?id=2115147590 (More Off Road album links at bottom of the view page) |
Re: busted header bolt
All of what Mike said but especially: do NOT try an easy out. The bolt
is rusted in, you will snap the easyout and then you have no hope. Mike Romain wrote: > j wrote: >> 95 wrangler with the head bolf broken off flush. suggestions? >> >> >> thanks >> > > What is it flush with? The head? > > If so I have heard of folks putting a nut there and welding it in the > center of the nut onto the stub if there is even just a little showing, > then using that. > > I have heard of and seen folks use a fire wrench (cutting torch) and > blow the sucker out with that. It seems to work. > > I have heard left hand drill bits can work. > > Things like 'easy outs' are a failure 99% of the time I have seen, used > or heard of their use. > > 'I' can drill out 99% of the ones I go after without damaging threads > much if any. Many years of Practice from living in the rust belt helps > there. :-( > > I use a small bit and drill a pilot hole offset from the center of the > bolt. I then use a bit that will fit from this pilot 'just' to the edge > of the threads and drill. This leaves a crescent moon shape of the bolt > that can be backed out with a screwdriver or hammer and center punch. > > Good Luck! > > Mike > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > 88 Cherokee 235 BFG AT's - Gone to the rust pile... > Canadian Off Road Trips Photos: Non members can still view! > Jan/06 http://www.imagestation.com/album/pi...?id=2115147590 > (More Off Road album links at bottom of the view page) |
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