Re: Snapped off an exhaust bolt
 

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

Re: Snapped off an exhaust bolt
 

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

Re: Snapped off an exhaust bolt
 

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

Re: Snapped off an exhaust bolt
 

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
 

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
 

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
 

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
 

"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
 

"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
 

"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