Cutting torch, oxy-acetylene. This falls under "expert" use of a torch. If
you don't do it right, you not only damage the threads, but what gets left
in the hole is a hardened mix of bolt and cast iron that is likely to break
the teeth of any thread chaser you put in it.

Earle

"Arold "Al" Green" <aroldg@spamlessmchsi.com> wrote in message
news:lftsp2t2r2b6dlr6e72nbdc93gc2u3u0lt@4ax.com...
> Mike & Bill,
> Excuse my ignorance, but what do you mean by blowing out a bolt with a
> torch?
> Al
>
> "L.W. \(Bill\) ------ III" <----------@***.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

 

Cutting torch, oxy-acetylene. This falls under "expert" use of a torch. If
you don't do it right, you not only damage the threads, but what gets left
in the hole is a hardened mix of bolt and cast iron that is likely to break
the teeth of any thread chaser you put in it.

Earle

"Arold "Al" Green" <aroldg@spamlessmchsi.com> wrote in message
news:lftsp2t2r2b6dlr6e72nbdc93gc2u3u0lt@4ax.com...
> Mike & Bill,
> Excuse my ignorance, but what do you mean by blowing out a bolt with a
> torch?
> Al
>
> "L.W. \(Bill\) ------ III" <----------@***.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

 

Cutting torch, oxy-acetylene. This falls under "expert" use of a torch. If
you don't do it right, you not only damage the threads, but what gets left
in the hole is a hardened mix of bolt and cast iron that is likely to break
the teeth of any thread chaser you put in it.

Earle

"Arold "Al" Green" <aroldg@spamlessmchsi.com> wrote in message
news:lftsp2t2r2b6dlr6e72nbdc93gc2u3u0lt@4ax.com...
> Mike & Bill,
> Excuse my ignorance, but what do you mean by blowing out a bolt with a
> torch?
> Al
>
> "L.W. \(Bill\) ------ III" <----------@***.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

 

Using an oxygen acetylene cutting torch.

The steel will catch on fire and melt before the cast iron does
apparently so the high flow of gas going into the dead end hole
physially blows the melted steel out of the hole.

One Jeep owner kept snapping engine mounts (I think it was because he
insisted on using the hardest bolts he could get, which sheared too
easy, but that's another thread) and he stated he used the torch to blow
the holes clean. He also stated he normally didn't need to chase the
threads with a tap.

Mike

Arold \"Al\" Green wrote:
>
> Mike & Bill,
> Excuse my ignorance, but what do you mean by blowing out a bolt with a
> torch?
> Al
>
> "L.W. \(Bill\) ------ III" <----------@***.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

 

Using an oxygen acetylene cutting torch.

The steel will catch on fire and melt before the cast iron does
apparently so the high flow of gas going into the dead end hole
physially blows the melted steel out of the hole.

One Jeep owner kept snapping engine mounts (I think it was because he
insisted on using the hardest bolts he could get, which sheared too
easy, but that's another thread) and he stated he used the torch to blow
the holes clean. He also stated he normally didn't need to chase the
threads with a tap.

Mike

Arold \"Al\" Green wrote:
>
> Mike & Bill,
> Excuse my ignorance, but what do you mean by blowing out a bolt with a
> torch?
> Al
>
> "L.W. \(Bill\) ------ III" <----------@***.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

 

Using an oxygen acetylene cutting torch.

The steel will catch on fire and melt before the cast iron does
apparently so the high flow of gas going into the dead end hole
physially blows the melted steel out of the hole.

One Jeep owner kept snapping engine mounts (I think it was because he
insisted on using the hardest bolts he could get, which sheared too
easy, but that's another thread) and he stated he used the torch to blow
the holes clean. He also stated he normally didn't need to chase the
threads with a tap.

Mike

Arold \"Al\" Green wrote:
>
> Mike & Bill,
> Excuse my ignorance, but what do you mean by blowing out a bolt with a
> torch?
> Al
>
> "L.W. \(Bill\) ------ III" <----------@***.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

 

Thanks for the info. I guess I will not try it - definitely not an
expert with a torch.
Al


Mike Romain <romainm@sympatico.ca> wrote:

>Using an oxygen acetylene cutting torch.
>
>The steel will catch on fire and melt before the cast iron does
>apparently so the high flow of gas going into the dead end hole
>physially blows the melted steel out of the hole.
>
>One Jeep owner kept snapping engine mounts (I think it was because he
>insisted on using the hardest bolts he could get, which sheared too
>easy, but that's another thread) and he stated he used the torch to blow
>the holes clean. He also stated he normally didn't need to chase the
>threads with a tap.
>
>Mike
__
Arold "Al" Green

 

Thanks for the info. I guess I will not try it - definitely not an
expert with a torch.
Al


Mike Romain <romainm@sympatico.ca> wrote:

>Using an oxygen acetylene cutting torch.
>
>The steel will catch on fire and melt before the cast iron does
>apparently so the high flow of gas going into the dead end hole
>physially blows the melted steel out of the hole.
>
>One Jeep owner kept snapping engine mounts (I think it was because he
>insisted on using the hardest bolts he could get, which sheared too
>easy, but that's another thread) and he stated he used the torch to blow
>the holes clean. He also stated he normally didn't need to chase the
>threads with a tap.
>
>Mike
__
Arold "Al" Green

 

Thanks for the info. I guess I will not try it - definitely not an
expert with a torch.
Al


Mike Romain <romainm@sympatico.ca> wrote:

>Using an oxygen acetylene cutting torch.
>
>The steel will catch on fire and melt before the cast iron does
>apparently so the high flow of gas going into the dead end hole
>physially blows the melted steel out of the hole.
>
>One Jeep owner kept snapping engine mounts (I think it was because he
>insisted on using the hardest bolts he could get, which sheared too
>easy, but that's another thread) and he stated he used the torch to blow
>the holes clean. He also stated he normally didn't need to chase the
>threads with a tap.
>
>Mike
__
Arold "Al" Green

 

Only one way to learn, Al.

Carl

"Arold "Al" Green" <aroldg@spamlessmchsi.com> wrote in message
news:to9tp2dn7l3k9gl2q8l7e3ntuf742od034@4ax.com...
> Thanks for the info. I guess I will not try it - definitely not an
> expert with a torch.
> Al
>
>
> Mike Romain <romainm@sympatico.ca> wrote:
>
>>Using an oxygen acetylene cutting torch.
>>
>>The steel will catch on fire and melt before the cast iron does
>>apparently so the high flow of gas going into the dead end hole
>>physially blows the melted steel out of the hole.
>>
>>One Jeep owner kept snapping engine mounts (I think it was because he
>>insisted on using the hardest bolts he could get, which sheared too
>>easy, but that's another thread) and he stated he used the torch to blow
>>the holes clean. He also stated he normally didn't need to chase the
>>threads with a tap.
>>
>>Mike
> __
> Arold "Al" Green