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Re: Best method for extracting bolts with broken off heads...
I am surprised no one has suggested he gets it blown out with a torch...
I know folks that swear they can blow the steel bolts out of the cast with a cutting torch without damaging the threads in the cast. Just a though..... Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's 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) RoyJ wrote: > > You have my symapthies on the various broken drills and extractors. I > have done that enough times that my current strategy is to do the "best > shot" the FIRST time. I know it is tempting to to try and work at an odd > angle to avoid taking out too many related parts but it is usually a > false start. > > good luck. > > Clint wrote: > > Well, it must be time for a progress report... > > > > First, I tried the torch, followed by an extractor. I managed to snap > > the extractor off in the bolt. *sigh* I think my neighbor jinxed me on > > that one, cuz he warned me about it. > > > > I was able to cut off the bolt and get the remains of the extractor out, > > so no real harm done, anyway. I followed that up with a titanium coated > > bit, to try drilling it out. I think I should have used a beefier (or > > better) bit, as the bit busted off inside. *sigh again* > > > > So I picked up some better and bigger bits, and went at it again > > tonight. First, I had to remove the front of the Jeep, so I could get my > > drill in there. Turns out to be pretty easy (4 bolts, hidden behind the > > turn signals, in case you need to know), although I'm a little nervous > > about getting everything lined up again (assuming I get to put it back > > together some time). Gives me lots more room to work, anyway. > > > > I got the bottom bolt drilled out pretty quick, and I THINK I'll be ok > > with the threads. I'll have to wait and see on that one; the remains of > > the bolt showed just the very end threads to be touched by the drill > > bit.. But the top bolt is still stuck tight, and the real problem now > > is the broken drill bit in it is keeping me from drilling it out. > > > > I saw someone else with a stuck tap in this same thread, and the > > suggestion was a carbide bit, an A/C drill, and a case of beer (or > > something like that). I think I'll pass on the beer (too many memories > > of New Year's Eve), but I'll break out my old corded drill and pick up a > > few more bits to try drilling it out. > > > > Hey, at least I won ONE fight tonight. :) > > > > Clint > > > > "Clint" <cneufeld@mysocks.shaw.ca> wrote in message > > news:UJCkh.535564$R63.397938@pd7urf1no... > > > >> So I'm elbows-deep in pulling out my radiator and water pump from my > >> '88 Jeep Comanche (4.0l, if that matters), and as I figured was > >> likely, two bolt heads broke off. I've got pictures, if you care to > >> see (http://members.shaw.ca/cneufeld/Imag...ck005Small.jpg). > >> They're broken off just under the head, so there's about 1/2" of > >> threaded material to grab, assuming that doesn't break off. > >> > >> What's the best method you've found to deal with these? Do any of > >> them work better than others? If I've got to drill a hole in them, > >> how do you get the hole started with an uneven surface like the broken > >> off head? Center-punch? That'll be fun to get in there with a hammer... > >> > >> So far, I figure I'm about 3 hours into the job, and I've got all the > >> old parts out. The old water pump actually looks like it's in good > >> shaped (vanes all there, looking pretty new), but it was leaking. > >> There was no sign of anything other than the paper gasket; should I be > >> using the RTV gasket gunk as well? Somehow, I've got to get into the > >> block heater and replace it as well. At least with the water pump > >> out, I can see in there a bit. > >> > >> Clint > > > > |
Re: Best method for extracting bolts with broken off heads...
If he has access to a welder I've had good luck if there is enough bolt
sticking I just weld a nut on, between the heat from the weld and the nut head they come easy. "Mike Romain" <romainm@sympatico.ca> wrote in message news:459D3B6A.3AE27867@sympatico.ca... >I am surprised no one has suggested he gets it blown out with a torch... > > I know folks that swear they can blow the steel bolts out of the cast > with a cutting torch without damaging the threads in the cast. > > Just a though..... > > Mike > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > 88 Cherokee 235 BFG AT's > 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) > > RoyJ wrote: >> >> You have my symapthies on the various broken drills and extractors. I >> have done that enough times that my current strategy is to do the "best >> shot" the FIRST time. I know it is tempting to to try and work at an odd >> angle to avoid taking out too many related parts but it is usually a >> false start. >> >> good luck. >> >> Clint wrote: >> > Well, it must be time for a progress report... >> > >> > First, I tried the torch, followed by an extractor. I managed to snap >> > the extractor off in the bolt. *sigh* I think my neighbor jinxed me on >> > that one, cuz he warned me about it. >> > >> > I was able to cut off the bolt and get the remains of the extractor >> > out, >> > so no real harm done, anyway. I followed that up with a titanium >> > coated >> > bit, to try drilling it out. I think I should have used a beefier (or >> > better) bit, as the bit busted off inside. *sigh again* >> > >> > So I picked up some better and bigger bits, and went at it again >> > tonight. First, I had to remove the front of the Jeep, so I could get >> > my >> > drill in there. Turns out to be pretty easy (4 bolts, hidden behind >> > the >> > turn signals, in case you need to know), although I'm a little nervous >> > about getting everything lined up again (assuming I get to put it back >> > together some time). Gives me lots more room to work, anyway. >> > >> > I got the bottom bolt drilled out pretty quick, and I THINK I'll be ok >> > with the threads. I'll have to wait and see on that one; the remains >> > of >> > the bolt showed just the very end threads to be touched by the drill >> > bit.. But the top bolt is still stuck tight, and the real problem now >> > is the broken drill bit in it is keeping me from drilling it out. >> > >> > I saw someone else with a stuck tap in this same thread, and the >> > suggestion was a carbide bit, an A/C drill, and a case of beer (or >> > something like that). I think I'll pass on the beer (too many memories >> > of New Year's Eve), but I'll break out my old corded drill and pick up >> > a >> > few more bits to try drilling it out. >> > >> > Hey, at least I won ONE fight tonight. :) >> > >> > Clint >> > >> > "Clint" <cneufeld@mysocks.shaw.ca> wrote in message >> > news:UJCkh.535564$R63.397938@pd7urf1no... >> > >> >> So I'm elbows-deep in pulling out my radiator and water pump from my >> >> '88 Jeep Comanche (4.0l, if that matters), and as I figured was >> >> likely, two bolt heads broke off. I've got pictures, if you care to >> >> see (http://members.shaw.ca/cneufeld/Imag...ck005Small.jpg). >> >> They're broken off just under the head, so there's about 1/2" of >> >> threaded material to grab, assuming that doesn't break off. >> >> >> >> What's the best method you've found to deal with these? Do any of >> >> them work better than others? If I've got to drill a hole in them, >> >> how do you get the hole started with an uneven surface like the broken >> >> off head? Center-punch? That'll be fun to get in there with a >> >> hammer... >> >> >> >> So far, I figure I'm about 3 hours into the job, and I've got all the >> >> old parts out. The old water pump actually looks like it's in good >> >> shaped (vanes all there, looking pretty new), but it was leaking. >> >> There was no sign of anything other than the paper gasket; should I be >> >> using the RTV gasket gunk as well? Somehow, I've got to get into the >> >> block heater and replace it as well. At least with the water pump >> >> out, I can see in there a bit. >> >> >> >> Clint >> > >> > |
Re: Best method for extracting bolts with broken off heads...
If he has access to a welder I've had good luck if there is enough bolt
sticking I just weld a nut on, between the heat from the weld and the nut head they come easy. "Mike Romain" <romainm@sympatico.ca> wrote in message news:459D3B6A.3AE27867@sympatico.ca... >I am surprised no one has suggested he gets it blown out with a torch... > > I know folks that swear they can blow the steel bolts out of the cast > with a cutting torch without damaging the threads in the cast. > > Just a though..... > > Mike > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > 88 Cherokee 235 BFG AT's > 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) > > RoyJ wrote: >> >> You have my symapthies on the various broken drills and extractors. I >> have done that enough times that my current strategy is to do the "best >> shot" the FIRST time. I know it is tempting to to try and work at an odd >> angle to avoid taking out too many related parts but it is usually a >> false start. >> >> good luck. >> >> Clint wrote: >> > Well, it must be time for a progress report... >> > >> > First, I tried the torch, followed by an extractor. I managed to snap >> > the extractor off in the bolt. *sigh* I think my neighbor jinxed me on >> > that one, cuz he warned me about it. >> > >> > I was able to cut off the bolt and get the remains of the extractor >> > out, >> > so no real harm done, anyway. I followed that up with a titanium >> > coated >> > bit, to try drilling it out. I think I should have used a beefier (or >> > better) bit, as the bit busted off inside. *sigh again* >> > >> > So I picked up some better and bigger bits, and went at it again >> > tonight. First, I had to remove the front of the Jeep, so I could get >> > my >> > drill in there. Turns out to be pretty easy (4 bolts, hidden behind >> > the >> > turn signals, in case you need to know), although I'm a little nervous >> > about getting everything lined up again (assuming I get to put it back >> > together some time). Gives me lots more room to work, anyway. >> > >> > I got the bottom bolt drilled out pretty quick, and I THINK I'll be ok >> > with the threads. I'll have to wait and see on that one; the remains >> > of >> > the bolt showed just the very end threads to be touched by the drill >> > bit.. But the top bolt is still stuck tight, and the real problem now >> > is the broken drill bit in it is keeping me from drilling it out. >> > >> > I saw someone else with a stuck tap in this same thread, and the >> > suggestion was a carbide bit, an A/C drill, and a case of beer (or >> > something like that). I think I'll pass on the beer (too many memories >> > of New Year's Eve), but I'll break out my old corded drill and pick up >> > a >> > few more bits to try drilling it out. >> > >> > Hey, at least I won ONE fight tonight. :) >> > >> > Clint >> > >> > "Clint" <cneufeld@mysocks.shaw.ca> wrote in message >> > news:UJCkh.535564$R63.397938@pd7urf1no... >> > >> >> So I'm elbows-deep in pulling out my radiator and water pump from my >> >> '88 Jeep Comanche (4.0l, if that matters), and as I figured was >> >> likely, two bolt heads broke off. I've got pictures, if you care to >> >> see (http://members.shaw.ca/cneufeld/Imag...ck005Small.jpg). >> >> They're broken off just under the head, so there's about 1/2" of >> >> threaded material to grab, assuming that doesn't break off. >> >> >> >> What's the best method you've found to deal with these? Do any of >> >> them work better than others? If I've got to drill a hole in them, >> >> how do you get the hole started with an uneven surface like the broken >> >> off head? Center-punch? That'll be fun to get in there with a >> >> hammer... >> >> >> >> So far, I figure I'm about 3 hours into the job, and I've got all the >> >> old parts out. The old water pump actually looks like it's in good >> >> shaped (vanes all there, looking pretty new), but it was leaking. >> >> There was no sign of anything other than the paper gasket; should I be >> >> using the RTV gasket gunk as well? Somehow, I've got to get into the >> >> block heater and replace it as well. At least with the water pump >> >> out, I can see in there a bit. >> >> >> >> Clint >> > >> > |
Re: Best method for extracting bolts with broken off heads...
If he has access to a welder I've had good luck if there is enough bolt
sticking I just weld a nut on, between the heat from the weld and the nut head they come easy. "Mike Romain" <romainm@sympatico.ca> wrote in message news:459D3B6A.3AE27867@sympatico.ca... >I am surprised no one has suggested he gets it blown out with a torch... > > I know folks that swear they can blow the steel bolts out of the cast > with a cutting torch without damaging the threads in the cast. > > Just a though..... > > Mike > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > 88 Cherokee 235 BFG AT's > 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) > > RoyJ wrote: >> >> You have my symapthies on the various broken drills and extractors. I >> have done that enough times that my current strategy is to do the "best >> shot" the FIRST time. I know it is tempting to to try and work at an odd >> angle to avoid taking out too many related parts but it is usually a >> false start. >> >> good luck. >> >> Clint wrote: >> > Well, it must be time for a progress report... >> > >> > First, I tried the torch, followed by an extractor. I managed to snap >> > the extractor off in the bolt. *sigh* I think my neighbor jinxed me on >> > that one, cuz he warned me about it. >> > >> > I was able to cut off the bolt and get the remains of the extractor >> > out, >> > so no real harm done, anyway. I followed that up with a titanium >> > coated >> > bit, to try drilling it out. I think I should have used a beefier (or >> > better) bit, as the bit busted off inside. *sigh again* >> > >> > So I picked up some better and bigger bits, and went at it again >> > tonight. First, I had to remove the front of the Jeep, so I could get >> > my >> > drill in there. Turns out to be pretty easy (4 bolts, hidden behind >> > the >> > turn signals, in case you need to know), although I'm a little nervous >> > about getting everything lined up again (assuming I get to put it back >> > together some time). Gives me lots more room to work, anyway. >> > >> > I got the bottom bolt drilled out pretty quick, and I THINK I'll be ok >> > with the threads. I'll have to wait and see on that one; the remains >> > of >> > the bolt showed just the very end threads to be touched by the drill >> > bit.. But the top bolt is still stuck tight, and the real problem now >> > is the broken drill bit in it is keeping me from drilling it out. >> > >> > I saw someone else with a stuck tap in this same thread, and the >> > suggestion was a carbide bit, an A/C drill, and a case of beer (or >> > something like that). I think I'll pass on the beer (too many memories >> > of New Year's Eve), but I'll break out my old corded drill and pick up >> > a >> > few more bits to try drilling it out. >> > >> > Hey, at least I won ONE fight tonight. :) >> > >> > Clint >> > >> > "Clint" <cneufeld@mysocks.shaw.ca> wrote in message >> > news:UJCkh.535564$R63.397938@pd7urf1no... >> > >> >> So I'm elbows-deep in pulling out my radiator and water pump from my >> >> '88 Jeep Comanche (4.0l, if that matters), and as I figured was >> >> likely, two bolt heads broke off. I've got pictures, if you care to >> >> see (http://members.shaw.ca/cneufeld/Imag...ck005Small.jpg). >> >> They're broken off just under the head, so there's about 1/2" of >> >> threaded material to grab, assuming that doesn't break off. >> >> >> >> What's the best method you've found to deal with these? Do any of >> >> them work better than others? If I've got to drill a hole in them, >> >> how do you get the hole started with an uneven surface like the broken >> >> off head? Center-punch? That'll be fun to get in there with a >> >> hammer... >> >> >> >> So far, I figure I'm about 3 hours into the job, and I've got all the >> >> old parts out. The old water pump actually looks like it's in good >> >> shaped (vanes all there, looking pretty new), but it was leaking. >> >> There was no sign of anything other than the paper gasket; should I be >> >> using the RTV gasket gunk as well? Somehow, I've got to get into the >> >> block heater and replace it as well. At least with the water pump >> >> out, I can see in there a bit. >> >> >> >> Clint >> > >> > |
Re: Best method for extracting bolts with broken off heads...
Hi Mike,
Yup, I've had a head bolt blown out while the head was on the flat head, and didn't even need a thread chaser. God Bless America, Bill O|||||||O mailto:-------------------- http://www.----------.com/ "Mike Romain" <romainm@sympatico.ca> wrote in message news:459D3B6A.3AE27867@sympatico.ca... > I am surprised no one has suggested he gets it blown out with a torch... > > I know folks that swear they can blow the steel bolts out of the cast > with a cutting torch without damaging the threads in the cast. > > Just a though..... > > Mike > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > 88 Cherokee 235 BFG AT's > 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) -- Posted via a free Usenet account from http://www.teranews.com |
Re: Best method for extracting bolts with broken off heads...
Hi Mike,
Yup, I've had a head bolt blown out while the head was on the flat head, and didn't even need a thread chaser. God Bless America, Bill O|||||||O mailto:-------------------- http://www.----------.com/ "Mike Romain" <romainm@sympatico.ca> wrote in message news:459D3B6A.3AE27867@sympatico.ca... > I am surprised no one has suggested he gets it blown out with a torch... > > I know folks that swear they can blow the steel bolts out of the cast > with a cutting torch without damaging the threads in the cast. > > Just a though..... > > Mike > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > 88 Cherokee 235 BFG AT's > 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) -- Posted via a free Usenet account from http://www.teranews.com |
Re: Best method for extracting bolts with broken off heads...
Hi Mike,
Yup, I've had a head bolt blown out while the head was on the flat head, and didn't even need a thread chaser. God Bless America, Bill O|||||||O mailto:-------------------- http://www.----------.com/ "Mike Romain" <romainm@sympatico.ca> wrote in message news:459D3B6A.3AE27867@sympatico.ca... > I am surprised no one has suggested he gets it blown out with a torch... > > I know folks that swear they can blow the steel bolts out of the cast > with a cutting torch without damaging the threads in the cast. > > Just a though..... > > Mike > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > 88 Cherokee 235 BFG AT's > 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) -- Posted via a free Usenet account from http://www.teranews.com |
Re: Best method for extracting bolts with broken off heads...
Mike & Bill,
Excuse my ignorance, but what do you mean by blowing out a bolt with a torch? Al "L.W. \(Bill\) ------ III" <----------@cox.net> wrote: >Hi Mike, > Yup, I've had a head bolt blown out while the head was on the flat >head, and didn't even need a thread chaser. > God Bless America, Bill O|||||||O >mailto:-------------------- http://www.----------.com/ > >"Mike Romain" <romainm@sympatico.ca> wrote in message >news:459D3B6A.3AE27867@sympatico.ca... >> I am surprised no one has suggested he gets it blown out with a torch... >> >> I know folks that swear they can blow the steel bolts out of the cast >> with a cutting torch without damaging the threads in the cast. >> >> Just a though..... >> >> Mike >> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 >> 88 Cherokee 235 BFG AT's >> 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) __ Arold "Al" Green |
Re: Best method for extracting bolts with broken off heads...
Mike & Bill,
Excuse my ignorance, but what do you mean by blowing out a bolt with a torch? Al "L.W. \(Bill\) ------ III" <----------@cox.net> wrote: >Hi Mike, > Yup, I've had a head bolt blown out while the head was on the flat >head, and didn't even need a thread chaser. > God Bless America, Bill O|||||||O >mailto:-------------------- http://www.----------.com/ > >"Mike Romain" <romainm@sympatico.ca> wrote in message >news:459D3B6A.3AE27867@sympatico.ca... >> I am surprised no one has suggested he gets it blown out with a torch... >> >> I know folks that swear they can blow the steel bolts out of the cast >> with a cutting torch without damaging the threads in the cast. >> >> Just a though..... >> >> Mike >> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 >> 88 Cherokee 235 BFG AT's >> 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) __ Arold "Al" Green |
Re: Best method for extracting bolts with broken off heads...
Mike & Bill,
Excuse my ignorance, but what do you mean by blowing out a bolt with a torch? Al "L.W. \(Bill\) ------ III" <----------@cox.net> wrote: >Hi Mike, > Yup, I've had a head bolt blown out while the head was on the flat >head, and didn't even need a thread chaser. > God Bless America, Bill O|||||||O >mailto:-------------------- http://www.----------.com/ > >"Mike Romain" <romainm@sympatico.ca> wrote in message >news:459D3B6A.3AE27867@sympatico.ca... >> I am surprised no one has suggested he gets it blown out with a torch... >> >> I know folks that swear they can blow the steel bolts out of the cast >> with a cutting torch without damaging the threads in the cast. >> >> Just a though..... >> >> Mike >> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 >> 88 Cherokee 235 BFG AT's >> 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) __ Arold "Al" Green |
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