Re: Fixing exhaust lead
 

On 15 mar, 17:28, c <c...@me.org> wrote:
> nrs wrote:
> > On 15 mar, 08:59, "nrs" <neale...@yahoo.com> wrote:
> >> The rearmost stud is broken on my 2.5 4cyl (95 YJ) and it has an
> >> exhaust leak. It was this way when I bought it so I have no idea how
> >> long it has gone like this. Yesterday I took it to a mechanic and he
> >> said that he could just remove the manifolds and broken stud and put
> >> in a new gasket but that there is only a 50% chance it will seal
> >> properly. He said the sure fix is to mill the exhaust manifold and
> >> mating surface on the head, stating that the exhaust leak could have
> >> erroded the mating surfaces.
>
> >> Does this sound reasonable?
>
> >> Also, would the intake manifold also have to be milled to keep it at
> >> the same thickness? I worry about this because some of the fasterners
> >> are used to hold both manifolds in place.
>
> >> Thanks
>
> > Any advice would be appreciated. I´m sure some of you have dealt with
> > this before. Thanks
>
> I have seen manifolds erode or pit very badly if a leak is left unfixed
> for a long enough time, so yes it is possible. If you trust your
> mechanic, then take his advice. There are many good mechanics out there,
> and there are also a lot of shady ones.
>
> Chris- Ocultar texto de la cita -
>
> - Mostrar texto de la cita -

Thanks to all who replied. This mechanic is highly recommended by the
local jeepers so I would tend to trust him. I was starting to doubt
since milling seemed extreme to me. However, based on your comments
it seems he was just letting me know the worst case scenario. I'm
thinking if it needs milling, I would rather get headers or a new
manifold and mill only on the head to avoid mismatching the intake and
exhaust manifold thicknesses.

Thanks

Re: Fixing exhaust lead
 

On 15 mar, 17:28, c <c...@me.org> wrote:
> nrs wrote:
> > On 15 mar, 08:59, "nrs" <neale...@yahoo.com> wrote:
> >> The rearmost stud is broken on my 2.5 4cyl (95 YJ) and it has an
> >> exhaust leak. It was this way when I bought it so I have no idea how
> >> long it has gone like this. Yesterday I took it to a mechanic and he
> >> said that he could just remove the manifolds and broken stud and put
> >> in a new gasket but that there is only a 50% chance it will seal
> >> properly. He said the sure fix is to mill the exhaust manifold and
> >> mating surface on the head, stating that the exhaust leak could have
> >> erroded the mating surfaces.
>
> >> Does this sound reasonable?
>
> >> Also, would the intake manifold also have to be milled to keep it at
> >> the same thickness? I worry about this because some of the fasterners
> >> are used to hold both manifolds in place.
>
> >> Thanks
>
> > Any advice would be appreciated. I´m sure some of you have dealt with
> > this before. Thanks
>
> I have seen manifolds erode or pit very badly if a leak is left unfixed
> for a long enough time, so yes it is possible. If you trust your
> mechanic, then take his advice. There are many good mechanics out there,
> and there are also a lot of shady ones.
>
> Chris- Ocultar texto de la cita -
>
> - Mostrar texto de la cita -

Thanks to all who replied. This mechanic is highly recommended by the
local jeepers so I would tend to trust him. I was starting to doubt
since milling seemed extreme to me. However, based on your comments
it seems he was just letting me know the worst case scenario. I'm
thinking if it needs milling, I would rather get headers or a new
manifold and mill only on the head to avoid mismatching the intake and
exhaust manifold thicknesses.

Thanks

Re: Fixing exhaust lead
 

On 15 mar, 17:28, c <c...@me.org> wrote:
> nrs wrote:
> > On 15 mar, 08:59, "nrs" <neale...@yahoo.com> wrote:
> >> The rearmost stud is broken on my 2.5 4cyl (95 YJ) and it has an
> >> exhaust leak. It was this way when I bought it so I have no idea how
> >> long it has gone like this. Yesterday I took it to a mechanic and he
> >> said that he could just remove the manifolds and broken stud and put
> >> in a new gasket but that there is only a 50% chance it will seal
> >> properly. He said the sure fix is to mill the exhaust manifold and
> >> mating surface on the head, stating that the exhaust leak could have
> >> erroded the mating surfaces.
>
> >> Does this sound reasonable?
>
> >> Also, would the intake manifold also have to be milled to keep it at
> >> the same thickness? I worry about this because some of the fasterners
> >> are used to hold both manifolds in place.
>
> >> Thanks
>
> > Any advice would be appreciated. I´m sure some of you have dealt with
> > this before. Thanks
>
> I have seen manifolds erode or pit very badly if a leak is left unfixed
> for a long enough time, so yes it is possible. If you trust your
> mechanic, then take his advice. There are many good mechanics out there,
> and there are also a lot of shady ones.
>
> Chris- Ocultar texto de la cita -
>
> - Mostrar texto de la cita -

Thanks to all who replied. This mechanic is highly recommended by the
local jeepers so I would tend to trust him. I was starting to doubt
since milling seemed extreme to me. However, based on your comments
it seems he was just letting me know the worst case scenario. I'm
thinking if it needs milling, I would rather get headers or a new
manifold and mill only on the head to avoid mismatching the intake and
exhaust manifold thicknesses.

Thanks

Re: Fixing exhaust lead
 

nrs wrote:
> On 15 mar, 08:59, "nrs" <neale...@yahoo.com> wrote:
>> The rearmost stud is broken on my 2.5 4cyl (95 YJ) and it has an
>> exhaust leak. It was this way when I bought it so I have no idea how
>> long it has gone like this. Yesterday I took it to a mechanic and he
>> said that he could just remove the manifolds and broken stud and put
>> in a new gasket but that there is only a 50% chance it will seal
>> properly. He said the sure fix is to mill the exhaust manifold and
>> mating surface on the head, stating that the exhaust leak could have
>> erroded the mating surfaces.
>>
>> Does this sound reasonable?
>>
>> Also, would the intake manifold also have to be milled to keep it at
>> the same thickness? I worry about this because some of the fasterners
>> are used to hold both manifolds in place.
>>
>> Thanks
>
> Any advice would be appreciated. I´m sure some of you have dealt with
> this before. Thanks
>

I have seen manifolds erode or pit very badly if a leak is left unfixed
for a long enough time, so yes it is possible. If you trust your
mechanic, then take his advice. There are many good mechanics out there,
and there are also a lot of shady ones.

Chris

Re: Fixing exhaust lead
 

nrs wrote:
> On 15 mar, 08:59, "nrs" <neale...@yahoo.com> wrote:
>> The rearmost stud is broken on my 2.5 4cyl (95 YJ) and it has an
>> exhaust leak. It was this way when I bought it so I have no idea how
>> long it has gone like this. Yesterday I took it to a mechanic and he
>> said that he could just remove the manifolds and broken stud and put
>> in a new gasket but that there is only a 50% chance it will seal
>> properly. He said the sure fix is to mill the exhaust manifold and
>> mating surface on the head, stating that the exhaust leak could have
>> erroded the mating surfaces.
>>
>> Does this sound reasonable?
>>
>> Also, would the intake manifold also have to be milled to keep it at
>> the same thickness? I worry about this because some of the fasterners
>> are used to hold both manifolds in place.
>>
>> Thanks
>
> Any advice would be appreciated. I´m sure some of you have dealt with
> this before. Thanks
>

I have seen manifolds erode or pit very badly if a leak is left unfixed
for a long enough time, so yes it is possible. If you trust your
mechanic, then take his advice. There are many good mechanics out there,
and there are also a lot of shady ones.

Chris

Re: Fixing exhaust lead
 

nrs wrote:
> On 15 mar, 08:59, "nrs" <neale...@yahoo.com> wrote:
>> The rearmost stud is broken on my 2.5 4cyl (95 YJ) and it has an
>> exhaust leak. It was this way when I bought it so I have no idea how
>> long it has gone like this. Yesterday I took it to a mechanic and he
>> said that he could just remove the manifolds and broken stud and put
>> in a new gasket but that there is only a 50% chance it will seal
>> properly. He said the sure fix is to mill the exhaust manifold and
>> mating surface on the head, stating that the exhaust leak could have
>> erroded the mating surfaces.
>>
>> Does this sound reasonable?
>>
>> Also, would the intake manifold also have to be milled to keep it at
>> the same thickness? I worry about this because some of the fasterners
>> are used to hold both manifolds in place.
>>
>> Thanks
>
> Any advice would be appreciated. I´m sure some of you have dealt with
> this before. Thanks
>

I have seen manifolds erode or pit very badly if a leak is left unfixed
for a long enough time, so yes it is possible. If you trust your
mechanic, then take his advice. There are many good mechanics out there,
and there are also a lot of shady ones.

Chris

Re: Fixing exhaust lead
 

nrs wrote:
> On 15 mar, 17:28, c <c...@me.org> wrote:
>> nrs wrote:
>>> On 15 mar, 08:59, "nrs" <neale...@yahoo.com> wrote:
>>>> The rearmost stud is broken on my 2.5 4cyl (95 YJ) and it has an
>>>> exhaust leak. It was this way when I bought it so I have no idea how
>>>> long it has gone like this. Yesterday I took it to a mechanic and he
>>>> said that he could just remove the manifolds and broken stud and put
>>>> in a new gasket but that there is only a 50% chance it will seal
>>>> properly. He said the sure fix is to mill the exhaust manifold and
>>>> mating surface on the head, stating that the exhaust leak could have
>>>> erroded the mating surfaces.
>>>> Does this sound reasonable?
>>>> Also, would the intake manifold also have to be milled to keep it at
>>>> the same thickness? I worry about this because some of the fasterners
>>>> are used to hold both manifolds in place.
>>>> Thanks
>>> Any advice would be appreciated. I´m sure some of you have dealt with
>>> this before. Thanks
>> I have seen manifolds erode or pit very badly if a leak is left unfixed
>> for a long enough time, so yes it is possible. If you trust your
>> mechanic, then take his advice. There are many good mechanics out there,
>> and there are also a lot of shady ones.
>>
>> Chris- Ocultar texto de la cita -
>>
>> - Mostrar texto de la cita -
>
> Thanks to all who replied. This mechanic is highly recommended by the
> local jeepers so I would tend to trust him. I was starting to doubt
> since milling seemed extreme to me. However, based on your comments
> it seems he was just letting me know the worst case scenario. I'm
> thinking if it needs milling, I would rather get headers or a new
> manifold and mill only on the head to avoid mismatching the intake and
> exhaust manifold thicknesses.
>
> Thanks
>
>

There is a gasket glue designed for exhaust gaskets in case of pits from
a leak and it is not unheard of to double the gaskets if it has a slight
warp.

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)

Re: Fixing exhaust lead
 

nrs wrote:
> On 15 mar, 17:28, c <c...@me.org> wrote:
>> nrs wrote:
>>> On 15 mar, 08:59, "nrs" <neale...@yahoo.com> wrote:
>>>> The rearmost stud is broken on my 2.5 4cyl (95 YJ) and it has an
>>>> exhaust leak. It was this way when I bought it so I have no idea how
>>>> long it has gone like this. Yesterday I took it to a mechanic and he
>>>> said that he could just remove the manifolds and broken stud and put
>>>> in a new gasket but that there is only a 50% chance it will seal
>>>> properly. He said the sure fix is to mill the exhaust manifold and
>>>> mating surface on the head, stating that the exhaust leak could have
>>>> erroded the mating surfaces.
>>>> Does this sound reasonable?
>>>> Also, would the intake manifold also have to be milled to keep it at
>>>> the same thickness? I worry about this because some of the fasterners
>>>> are used to hold both manifolds in place.
>>>> Thanks
>>> Any advice would be appreciated. I´m sure some of you have dealt with
>>> this before. Thanks
>> I have seen manifolds erode or pit very badly if a leak is left unfixed
>> for a long enough time, so yes it is possible. If you trust your
>> mechanic, then take his advice. There are many good mechanics out there,
>> and there are also a lot of shady ones.
>>
>> Chris- Ocultar texto de la cita -
>>
>> - Mostrar texto de la cita -
>
> Thanks to all who replied. This mechanic is highly recommended by the
> local jeepers so I would tend to trust him. I was starting to doubt
> since milling seemed extreme to me. However, based on your comments
> it seems he was just letting me know the worst case scenario. I'm
> thinking if it needs milling, I would rather get headers or a new
> manifold and mill only on the head to avoid mismatching the intake and
> exhaust manifold thicknesses.
>
> Thanks
>
>

There is a gasket glue designed for exhaust gaskets in case of pits from
a leak and it is not unheard of to double the gaskets if it has a slight
warp.

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)

Re: Fixing exhaust lead
 

nrs wrote:
> On 15 mar, 17:28, c <c...@me.org> wrote:
>> nrs wrote:
>>> On 15 mar, 08:59, "nrs" <neale...@yahoo.com> wrote:
>>>> The rearmost stud is broken on my 2.5 4cyl (95 YJ) and it has an
>>>> exhaust leak. It was this way when I bought it so I have no idea how
>>>> long it has gone like this. Yesterday I took it to a mechanic and he
>>>> said that he could just remove the manifolds and broken stud and put
>>>> in a new gasket but that there is only a 50% chance it will seal
>>>> properly. He said the sure fix is to mill the exhaust manifold and
>>>> mating surface on the head, stating that the exhaust leak could have
>>>> erroded the mating surfaces.
>>>> Does this sound reasonable?
>>>> Also, would the intake manifold also have to be milled to keep it at
>>>> the same thickness? I worry about this because some of the fasterners
>>>> are used to hold both manifolds in place.
>>>> Thanks
>>> Any advice would be appreciated. I´m sure some of you have dealt with
>>> this before. Thanks
>> I have seen manifolds erode or pit very badly if a leak is left unfixed
>> for a long enough time, so yes it is possible. If you trust your
>> mechanic, then take his advice. There are many good mechanics out there,
>> and there are also a lot of shady ones.
>>
>> Chris- Ocultar texto de la cita -
>>
>> - Mostrar texto de la cita -
>
> Thanks to all who replied. This mechanic is highly recommended by the
> local jeepers so I would tend to trust him. I was starting to doubt
> since milling seemed extreme to me. However, based on your comments
> it seems he was just letting me know the worst case scenario. I'm
> thinking if it needs milling, I would rather get headers or a new
> manifold and mill only on the head to avoid mismatching the intake and
> exhaust manifold thicknesses.
>
> Thanks
>
>

There is a gasket glue designed for exhaust gaskets in case of pits from
a leak and it is not unheard of to double the gaskets if it has a slight
warp.

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)

Re: Fixing exhaust lead
 

Actually, milling is really just plopping the head and/or manifold(s)
down on a big blanchard grinder. It's a 24" diameter horizontal grinding
wheel, just slide the part over it. Takes just a couple minutes to
flatten things out. 99% of the time is getting the head off. Might as
well think about grinding the valves while it is off.

nrs wrote:
> On 15 mar, 17:28, c <c...@me.org> wrote:
>
>>nrs wrote:
>>
>>>On 15 mar, 08:59, "nrs" <neale...@yahoo.com> wrote:
>>>
>>>>The rearmost stud is broken on my 2.5 4cyl (95 YJ) and it has an
>>>>exhaust leak. It was this way when I bought it so I have no idea how
>>>>long it has gone like this. Yesterday I took it to a mechanic and he
>>>>said that he could just remove the manifolds and broken stud and put
>>>>in a new gasket but that there is only a 50% chance it will seal
>>>>properly. He said the sure fix is to mill the exhaust manifold and
>>>>mating surface on the head, stating that the exhaust leak could have
>>>>erroded the mating surfaces.
>>
>>>>Does this sound reasonable?
>>
>>>>Also, would the intake manifold also have to be milled to keep it at
>>>>the same thickness? I worry about this because some of the fasterners
>>>>are used to hold both manifolds in place.
>>
>>>>Thanks
>>
>>>Any advice would be appreciated. I´m sure some of you have dealt with
>>>this before. Thanks
>>
>>I have seen manifolds erode or pit very badly if a leak is left unfixed
>>for a long enough time, so yes it is possible. If you trust your
>>mechanic, then take his advice. There are many good mechanics out there,
>>and there are also a lot of shady ones.
>>
>>Chris- Ocultar texto de la cita -
>>
>>- Mostrar texto de la cita -
>
>
> Thanks to all who replied. This mechanic is highly recommended by the
> local jeepers so I would tend to trust him. I was starting to doubt
> since milling seemed extreme to me. However, based on your comments
> it seems he was just letting me know the worst case scenario. I'm
> thinking if it needs milling, I would rather get headers or a new
> manifold and mill only on the head to avoid mismatching the intake and
> exhaust manifold thicknesses.
>
> Thanks
>
>