Re: Snapped off an exhaust bolt
"wb" wrote... > Yeah, I realized the WD40 is not the best for rust. I actually have plenty of bolt left to grab on to, but not enough that it is > still usable. It snapped, with a little less than half remaining. Should I be able to unscrew it from the manifold fitting, > assuming I get it hot enough and soak it enough with the right kind of lubricant? Do I replace it with a headless bolt (do they > have a proper term for these), screwed in from underneath? The term your looking for is "stud". Apply PB blaster, tap lightly with a hammer, wait half an hour, put on some more pb blaster, tap again, then use some vice grips to turn it out. -- DougW |
Re: Snapped off an exhaust bolt
"DougW" <post.replies@invalid.address> wrote in message
news:Tzcvh.138409$fh6.59206@newsfe13.lga... > > "wb" wrote... > > > Yeah, I realized the WD40 is not the best for rust. I actually > > have plenty of bolt left to grab on to, but not enough that it is > > still usable. It snapped, with a little less than half remaining. > > Should I be able to unscrew it from the manifold fitting, > > assuming I get it hot enough and soak it enough with the right > > kind of lubricant? Do I replace it with a headless bolt (do they > > have a proper term for these), screwed in from underneath? > > The term your looking for is "stud". Studs are good for this. If they weld themselves to the manifold or whatever they are screwed into, it's a good thing. You can put some anti-seize or thread locker on them first, but it will burn off and the stud will rust in place eventually. Earle > > Apply PB blaster, tap lightly with a hammer, wait half > an hour, put on some more pb blaster, tap again, then > use some vice grips to turn it out. > > -- > DougW > > > |
Re: Snapped off an exhaust bolt
"DougW" <post.replies@invalid.address> wrote in message
news:Tzcvh.138409$fh6.59206@newsfe13.lga... > > "wb" wrote... > > > Yeah, I realized the WD40 is not the best for rust. I actually > > have plenty of bolt left to grab on to, but not enough that it is > > still usable. It snapped, with a little less than half remaining. > > Should I be able to unscrew it from the manifold fitting, > > assuming I get it hot enough and soak it enough with the right > > kind of lubricant? Do I replace it with a headless bolt (do they > > have a proper term for these), screwed in from underneath? > > The term your looking for is "stud". Studs are good for this. If they weld themselves to the manifold or whatever they are screwed into, it's a good thing. You can put some anti-seize or thread locker on them first, but it will burn off and the stud will rust in place eventually. Earle > > Apply PB blaster, tap lightly with a hammer, wait half > an hour, put on some more pb blaster, tap again, then > use some vice grips to turn it out. > > -- > DougW > > > |
Re: Snapped off an exhaust bolt
"DougW" <post.replies@invalid.address> wrote in message
news:Tzcvh.138409$fh6.59206@newsfe13.lga... > > "wb" wrote... > > > Yeah, I realized the WD40 is not the best for rust. I actually > > have plenty of bolt left to grab on to, but not enough that it is > > still usable. It snapped, with a little less than half remaining. > > Should I be able to unscrew it from the manifold fitting, > > assuming I get it hot enough and soak it enough with the right > > kind of lubricant? Do I replace it with a headless bolt (do they > > have a proper term for these), screwed in from underneath? > > The term your looking for is "stud". Studs are good for this. If they weld themselves to the manifold or whatever they are screwed into, it's a good thing. You can put some anti-seize or thread locker on them first, but it will burn off and the stud will rust in place eventually. Earle > > Apply PB blaster, tap lightly with a hammer, wait half > an hour, put on some more pb blaster, tap again, then > use some vice grips to turn it out. > > -- > DougW > > > |
Re: Snapped off an exhaust bolt
"DougW" <post.replies@invalid.address> wrote in message
news:Tzcvh.138409$fh6.59206@newsfe13.lga... > > "wb" wrote... > > > Yeah, I realized the WD40 is not the best for rust. I actually > > have plenty of bolt left to grab on to, but not enough that it is > > still usable. It snapped, with a little less than half remaining. > > Should I be able to unscrew it from the manifold fitting, > > assuming I get it hot enough and soak it enough with the right > > kind of lubricant? Do I replace it with a headless bolt (do they > > have a proper term for these), screwed in from underneath? > > The term your looking for is "stud". Studs are good for this. If they weld themselves to the manifold or whatever they are screwed into, it's a good thing. You can put some anti-seize or thread locker on them first, but it will burn off and the stud will rust in place eventually. Earle > > Apply PB blaster, tap lightly with a hammer, wait half > an hour, put on some more pb blaster, tap again, then > use some vice grips to turn it out. > > -- > DougW > > > |
Re: Snapped off an exhaust bolt
The torch is your best friend in this situation.
Carl "wb" <wbowlin@gmail.com> wrote in message news:Fucvh.14209$ji1.4241@newssvr12.news.prodigy.n et... > RoyJ wrote: >> Next time use a GOOD lubricant like Kroil or BP blaster. WD-40 is a water >> displacing solvent that has little effect of tough rust. >> >> For this time, I'd hit it with the Kroil or PB, let it sit for at least >> 10 minutes, heat it up some, more PB, let the pentrant soak in. Grab with >> vice grips. Drilling out is a very last resort. The bolts have been temp >> cycled so many times they are hard as files. (and just as brittle, that's >> why it snapped). Grind the head as flat as possible, center punch, drill >> with a LEFT HANDED drill (if possible other wise a right handed one), >> lots of pressure, very slow speed (250 rpm is about right). You may need >> a couple of different sizes, drill until you hit the wall on one side, >> pick out the pieces. Miserable job when working upside down. >> >> wb wrote: >> >>> I was removing the nuts from two bolts where the exhaust pipe bolts onto >>> the exhaust header. I had used some WD40 on them and got one off with >>> no issues. I was loosening the other nut when I applied a little too >>> much pressure (but it wasn't a lot) when the bolt snapped on me. I was >>> going to replace the bolt and nut but realized that the bolts seem to >>> built into manifold itself. What's the best course of action to take >>> care of this problem? It is an 88 Wrangler. >>> >>> -Will > > Yeah, I realized the WD40 is not the best for rust. I actually have > plenty of bolt left to grab on to, but not enough that it is still usable. > It snapped, with a little less than half remaining. Should I be able to > unscrew it from the manifold fitting, assuming I get it hot enough and > soak it enough with the right kind of lubricant? Do I replace it with a > headless bolt (do they have a proper term for these), screwed in from > underneath? > > Thanks |
Re: Snapped off an exhaust bolt
The torch is your best friend in this situation.
Carl "wb" <wbowlin@gmail.com> wrote in message news:Fucvh.14209$ji1.4241@newssvr12.news.prodigy.n et... > RoyJ wrote: >> Next time use a GOOD lubricant like Kroil or BP blaster. WD-40 is a water >> displacing solvent that has little effect of tough rust. >> >> For this time, I'd hit it with the Kroil or PB, let it sit for at least >> 10 minutes, heat it up some, more PB, let the pentrant soak in. Grab with >> vice grips. Drilling out is a very last resort. The bolts have been temp >> cycled so many times they are hard as files. (and just as brittle, that's >> why it snapped). Grind the head as flat as possible, center punch, drill >> with a LEFT HANDED drill (if possible other wise a right handed one), >> lots of pressure, very slow speed (250 rpm is about right). You may need >> a couple of different sizes, drill until you hit the wall on one side, >> pick out the pieces. Miserable job when working upside down. >> >> wb wrote: >> >>> I was removing the nuts from two bolts where the exhaust pipe bolts onto >>> the exhaust header. I had used some WD40 on them and got one off with >>> no issues. I was loosening the other nut when I applied a little too >>> much pressure (but it wasn't a lot) when the bolt snapped on me. I was >>> going to replace the bolt and nut but realized that the bolts seem to >>> built into manifold itself. What's the best course of action to take >>> care of this problem? It is an 88 Wrangler. >>> >>> -Will > > Yeah, I realized the WD40 is not the best for rust. I actually have > plenty of bolt left to grab on to, but not enough that it is still usable. > It snapped, with a little less than half remaining. Should I be able to > unscrew it from the manifold fitting, assuming I get it hot enough and > soak it enough with the right kind of lubricant? Do I replace it with a > headless bolt (do they have a proper term for these), screwed in from > underneath? > > Thanks |
Re: Snapped off an exhaust bolt
The torch is your best friend in this situation.
Carl "wb" <wbowlin@gmail.com> wrote in message news:Fucvh.14209$ji1.4241@newssvr12.news.prodigy.n et... > RoyJ wrote: >> Next time use a GOOD lubricant like Kroil or BP blaster. WD-40 is a water >> displacing solvent that has little effect of tough rust. >> >> For this time, I'd hit it with the Kroil or PB, let it sit for at least >> 10 minutes, heat it up some, more PB, let the pentrant soak in. Grab with >> vice grips. Drilling out is a very last resort. The bolts have been temp >> cycled so many times they are hard as files. (and just as brittle, that's >> why it snapped). Grind the head as flat as possible, center punch, drill >> with a LEFT HANDED drill (if possible other wise a right handed one), >> lots of pressure, very slow speed (250 rpm is about right). You may need >> a couple of different sizes, drill until you hit the wall on one side, >> pick out the pieces. Miserable job when working upside down. >> >> wb wrote: >> >>> I was removing the nuts from two bolts where the exhaust pipe bolts onto >>> the exhaust header. I had used some WD40 on them and got one off with >>> no issues. I was loosening the other nut when I applied a little too >>> much pressure (but it wasn't a lot) when the bolt snapped on me. I was >>> going to replace the bolt and nut but realized that the bolts seem to >>> built into manifold itself. What's the best course of action to take >>> care of this problem? It is an 88 Wrangler. >>> >>> -Will > > Yeah, I realized the WD40 is not the best for rust. I actually have > plenty of bolt left to grab on to, but not enough that it is still usable. > It snapped, with a little less than half remaining. Should I be able to > unscrew it from the manifold fitting, assuming I get it hot enough and > soak it enough with the right kind of lubricant? Do I replace it with a > headless bolt (do they have a proper term for these), screwed in from > underneath? > > Thanks |
Re: Snapped off an exhaust bolt
The torch is your best friend in this situation.
Carl "wb" <wbowlin@gmail.com> wrote in message news:Fucvh.14209$ji1.4241@newssvr12.news.prodigy.n et... > RoyJ wrote: >> Next time use a GOOD lubricant like Kroil or BP blaster. WD-40 is a water >> displacing solvent that has little effect of tough rust. >> >> For this time, I'd hit it with the Kroil or PB, let it sit for at least >> 10 minutes, heat it up some, more PB, let the pentrant soak in. Grab with >> vice grips. Drilling out is a very last resort. The bolts have been temp >> cycled so many times they are hard as files. (and just as brittle, that's >> why it snapped). Grind the head as flat as possible, center punch, drill >> with a LEFT HANDED drill (if possible other wise a right handed one), >> lots of pressure, very slow speed (250 rpm is about right). You may need >> a couple of different sizes, drill until you hit the wall on one side, >> pick out the pieces. Miserable job when working upside down. >> >> wb wrote: >> >>> I was removing the nuts from two bolts where the exhaust pipe bolts onto >>> the exhaust header. I had used some WD40 on them and got one off with >>> no issues. I was loosening the other nut when I applied a little too >>> much pressure (but it wasn't a lot) when the bolt snapped on me. I was >>> going to replace the bolt and nut but realized that the bolts seem to >>> built into manifold itself. What's the best course of action to take >>> care of this problem? It is an 88 Wrangler. >>> >>> -Will > > Yeah, I realized the WD40 is not the best for rust. I actually have > plenty of bolt left to grab on to, but not enough that it is still usable. > It snapped, with a little less than half remaining. Should I be able to > unscrew it from the manifold fitting, assuming I get it hot enough and > soak it enough with the right kind of lubricant? Do I replace it with a > headless bolt (do they have a proper term for these), screwed in from > underneath? > > Thanks |
Re: Snapped off an exhaust bolt
Lots of penetrant, judious heat, tap tap, more penetrant, repeat over
several days. Get a brand new Vice Grip (by brand, no import junk!) and give it a go. I've had one come out with a major screech on the second day of swearing at it. Good luck. Replace with a suitable stud from dealer or NAPA. It would be a good idea to run a suitable tap into the hole to clean out the crud first. I expect it will be a 3/8"-16 NC thread. wb wrote: > RoyJ wrote: > >> Next time use a GOOD lubricant like Kroil or BP blaster. WD-40 is a >> water displacing solvent that has little effect of tough rust. >> >> For this time, I'd hit it with the Kroil or PB, let it sit for at >> least 10 minutes, heat it up some, more PB, let the pentrant soak in. >> Grab with vice grips. Drilling out is a very last resort. The bolts >> have been temp cycled so many times they are hard as files. (and just >> as brittle, that's why it snapped). Grind the head as flat as >> possible, center punch, drill with a LEFT HANDED drill (if possible >> other wise a right handed one), lots of pressure, very slow speed (250 >> rpm is about right). You may need a couple of different sizes, drill >> until you hit the wall on one side, pick out the pieces. Miserable job >> when working upside down. >> >> wb wrote: >> >>> I was removing the nuts from two bolts where the exhaust pipe bolts >>> onto the exhaust header. I had used some WD40 on them and got one >>> off with no issues. I was loosening the other nut when I applied a >>> little too much pressure (but it wasn't a lot) when the bolt snapped >>> on me. I was going to replace the bolt and nut but realized that the >>> bolts seem to built into manifold itself. What's the best course of >>> action to take care of this problem? It is an 88 Wrangler. >>> >>> -Will > > > Yeah, I realized the WD40 is not the best for rust. I actually have > plenty of bolt left to grab on to, but not enough that it is still > usable. It snapped, with a little less than half remaining. Should I > be able to unscrew it from the manifold fitting, assuming I get it hot > enough and soak it enough with the right kind of lubricant? Do I > replace it with a headless bolt (do they have a proper term for these), > screwed in from underneath? > > Thanks |
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