91 YJ catalytic converter?
11-28-2007, 10:53 PM
#11
Guest
Posts: n/a
Re: 91 YJ catalytic converter?
ufatbastehd wrote:
> On Nov 28, 6:36 pm, "J. Clarke" <jclarke.use...@***.net> wrote:
>> DougW wrote:
>>> testert555 wrote:
>>>> Can anyone recommend a catalytic converter for my 91 YJ? There is a
>>>> huge difference is prices. I'm going to put it in myself and cannot
>>>> weld. Cheaper the better.
>>
>>> Get it welded in. (in some states the cat must be welded on the
>>> engine side, has to do with emissions laws)
>>
>>> A good local muffler shop should be able to do the job for $100 or
>>> so.
>>
>> In what states does it have to be welded? Or is this more California
>> craziness?
Could be. I checked the Oklahoma regs and they don't specify. Thought
the local muffler shop told me that when I was thinking of swapping to a
bolt-in unit.
> I got my cat from http://www.quadratec.com
>
> its clamped on and I passed inspection in NY
The only problem I have with clamps is on many installs the
pipe tends to rotate. A spot weld is usually all it takes
to keep things in place.
--
DougW
> On Nov 28, 6:36 pm, "J. Clarke" <jclarke.use...@***.net> wrote:
>> DougW wrote:
>>> testert555 wrote:
>>>> Can anyone recommend a catalytic converter for my 91 YJ? There is a
>>>> huge difference is prices. I'm going to put it in myself and cannot
>>>> weld. Cheaper the better.
>>
>>> Get it welded in. (in some states the cat must be welded on the
>>> engine side, has to do with emissions laws)
>>
>>> A good local muffler shop should be able to do the job for $100 or
>>> so.
>>
>> In what states does it have to be welded? Or is this more California
>> craziness?
Could be. I checked the Oklahoma regs and they don't specify. Thought
the local muffler shop told me that when I was thinking of swapping to a
bolt-in unit.
> I got my cat from http://www.quadratec.com
>
> its clamped on and I passed inspection in NY
The only problem I have with clamps is on many installs the
pipe tends to rotate. A spot weld is usually all it takes
to keep things in place.
--
DougW
11-28-2007, 11:29 PM
#12
Guest
Posts: n/a
Re: 91 YJ catalytic converter?
Earle Horton wrote:
> "DougW" <I.only.read.usenet@invalid.address> wrote in message
> news:9Nm3j.27459$aN3.24619@newsfe12.phx...
>
>>testert555 wrote:
>>
>>>Can anyone recommend a catalytic converter for my 91 YJ? There
>>>is a huge difference is prices. I'm going to put it in myself and
>>>cannot weld. Cheaper the better.
>>
>>Get it welded in. (in some states the cat must be welded on the
>>engine side, has to do with emissions laws)
>>
>>A good local muffler shop should be able to do the job for $100 or so.
>>
>
> I can understand the OP's concerns about economy, but a budget converter
> installed on the cheap isn't going to last long. Mine (OEM part) has
> been on there since the emissions recall of 1995, and is still going
> strong. I doubt that the "guts" are still in it, but that is what a
> free flow exhaust is for, to let the converter chunks out. Seriously,
> this isn't something you want to go cheap on.
>
> Cheers,
>
> Earle
>
>
>
It's not a safety item and it's not going to seriously effect
performance or fuel economy, as long as you can pass inspection I don't
see anything wrong with cheaping out on a converter.
That being said if you plan on keeping the vehicle for a long time then
spend the extra bucks for a good converter, it's worth it to not have to
mess with the exhaust system.
Jeff DeWitt
> "DougW" <I.only.read.usenet@invalid.address> wrote in message
> news:9Nm3j.27459$aN3.24619@newsfe12.phx...
>
>>testert555 wrote:
>>
>>>Can anyone recommend a catalytic converter for my 91 YJ? There
>>>is a huge difference is prices. I'm going to put it in myself and
>>>cannot weld. Cheaper the better.
>>
>>Get it welded in. (in some states the cat must be welded on the
>>engine side, has to do with emissions laws)
>>
>>A good local muffler shop should be able to do the job for $100 or so.
>>
>
> I can understand the OP's concerns about economy, but a budget converter
> installed on the cheap isn't going to last long. Mine (OEM part) has
> been on there since the emissions recall of 1995, and is still going
> strong. I doubt that the "guts" are still in it, but that is what a
> free flow exhaust is for, to let the converter chunks out. Seriously,
> this isn't something you want to go cheap on.
>
> Cheers,
>
> Earle
>
>
>
It's not a safety item and it's not going to seriously effect
performance or fuel economy, as long as you can pass inspection I don't
see anything wrong with cheaping out on a converter.
That being said if you plan on keeping the vehicle for a long time then
spend the extra bucks for a good converter, it's worth it to not have to
mess with the exhaust system.
Jeff DeWitt
11-28-2007, 11:29 PM
#13
Guest
Posts: n/a
Re: 91 YJ catalytic converter?
Earle Horton wrote:
> "DougW" <I.only.read.usenet@invalid.address> wrote in message
> news:9Nm3j.27459$aN3.24619@newsfe12.phx...
>
>>testert555 wrote:
>>
>>>Can anyone recommend a catalytic converter for my 91 YJ? There
>>>is a huge difference is prices. I'm going to put it in myself and
>>>cannot weld. Cheaper the better.
>>
>>Get it welded in. (in some states the cat must be welded on the
>>engine side, has to do with emissions laws)
>>
>>A good local muffler shop should be able to do the job for $100 or so.
>>
>
> I can understand the OP's concerns about economy, but a budget converter
> installed on the cheap isn't going to last long. Mine (OEM part) has
> been on there since the emissions recall of 1995, and is still going
> strong. I doubt that the "guts" are still in it, but that is what a
> free flow exhaust is for, to let the converter chunks out. Seriously,
> this isn't something you want to go cheap on.
>
> Cheers,
>
> Earle
>
>
>
It's not a safety item and it's not going to seriously effect
performance or fuel economy, as long as you can pass inspection I don't
see anything wrong with cheaping out on a converter.
That being said if you plan on keeping the vehicle for a long time then
spend the extra bucks for a good converter, it's worth it to not have to
mess with the exhaust system.
Jeff DeWitt
> "DougW" <I.only.read.usenet@invalid.address> wrote in message
> news:9Nm3j.27459$aN3.24619@newsfe12.phx...
>
>>testert555 wrote:
>>
>>>Can anyone recommend a catalytic converter for my 91 YJ? There
>>>is a huge difference is prices. I'm going to put it in myself and
>>>cannot weld. Cheaper the better.
>>
>>Get it welded in. (in some states the cat must be welded on the
>>engine side, has to do with emissions laws)
>>
>>A good local muffler shop should be able to do the job for $100 or so.
>>
>
> I can understand the OP's concerns about economy, but a budget converter
> installed on the cheap isn't going to last long. Mine (OEM part) has
> been on there since the emissions recall of 1995, and is still going
> strong. I doubt that the "guts" are still in it, but that is what a
> free flow exhaust is for, to let the converter chunks out. Seriously,
> this isn't something you want to go cheap on.
>
> Cheers,
>
> Earle
>
>
>
It's not a safety item and it's not going to seriously effect
performance or fuel economy, as long as you can pass inspection I don't
see anything wrong with cheaping out on a converter.
That being said if you plan on keeping the vehicle for a long time then
spend the extra bucks for a good converter, it's worth it to not have to
mess with the exhaust system.
Jeff DeWitt
11-28-2007, 11:41 PM
#14
Guest
Posts: n/a
Re: 91 YJ catalytic converter?
"Jeff DeWitt" <JeffDeWitt@nc.rr.com> wrote in message
news:474e4044$0$9630$4c368faf@roadrunner.com...
> Earle Horton wrote:
> > "DougW" <I.only.read.usenet@invalid.address> wrote in message
> > news:9Nm3j.27459$aN3.24619@newsfe12.phx...
> >
> >>testert555 wrote:
> >>
> >>>Can anyone recommend a catalytic converter for my 91 YJ? There
> >>>is a huge difference is prices. I'm going to put it in myself and
> >>>cannot weld. Cheaper the better.
> >>
> >>Get it welded in. (in some states the cat must be welded on the
> >>engine side, has to do with emissions laws)
> >>
> >>A good local muffler shop should be able to do the job for $100 or
> >>so.
> >>
> >
> > I can understand the OP's concerns about economy, but a budget
> > converter
> > installed on the cheap isn't going to last long. Mine (OEM part)
> > has
> > been on there since the emissions recall of 1995, and is still going
> > strong. I doubt that the "guts" are still in it, but that is what a
> > free flow exhaust is for, to let the converter chunks out.
> > Seriously, this isn't something you want to go cheap on.
> >
> > Cheers,
> >
> > Earle
> >
> >
> >
>
> It's not a safety item and it's not going to seriously effect
> performance or fuel economy, as long as you can pass inspection
> I don't see anything wrong with cheaping out on a converter.
Four letters Jeff, "r", "u", "s" and "t". It's amazing how fast cheap
metal tries to get back to the earth it came from. That said you don't
have to get ripped off by the stealership. Just get a quality brand
name component, and you won't be sorry.
>
> That being said if you plan on keeping the vehicle for a long time
> then spend the extra bucks for a good converter, it's worth it to
> not have to mess with the exhaust system.
Yep, exhaust system work sucks. I have known people to attack stubborn
exhaust bolts with a 44 Magnum.
Saludos,
Earle
>
> Jeff DeWitt
--
Posted via a free Usenet account from http://www.teranews.com
news:474e4044$0$9630$4c368faf@roadrunner.com...
> Earle Horton wrote:
> > "DougW" <I.only.read.usenet@invalid.address> wrote in message
> > news:9Nm3j.27459$aN3.24619@newsfe12.phx...
> >
> >>testert555 wrote:
> >>
> >>>Can anyone recommend a catalytic converter for my 91 YJ? There
> >>>is a huge difference is prices. I'm going to put it in myself and
> >>>cannot weld. Cheaper the better.
> >>
> >>Get it welded in. (in some states the cat must be welded on the
> >>engine side, has to do with emissions laws)
> >>
> >>A good local muffler shop should be able to do the job for $100 or
> >>so.
> >>
> >
> > I can understand the OP's concerns about economy, but a budget
> > converter
> > installed on the cheap isn't going to last long. Mine (OEM part)
> > has
> > been on there since the emissions recall of 1995, and is still going
> > strong. I doubt that the "guts" are still in it, but that is what a
> > free flow exhaust is for, to let the converter chunks out.
> > Seriously, this isn't something you want to go cheap on.
> >
> > Cheers,
> >
> > Earle
> >
> >
> >
>
> It's not a safety item and it's not going to seriously effect
> performance or fuel economy, as long as you can pass inspection
> I don't see anything wrong with cheaping out on a converter.
Four letters Jeff, "r", "u", "s" and "t". It's amazing how fast cheap
metal tries to get back to the earth it came from. That said you don't
have to get ripped off by the stealership. Just get a quality brand
name component, and you won't be sorry.
>
> That being said if you plan on keeping the vehicle for a long time
> then spend the extra bucks for a good converter, it's worth it to
> not have to mess with the exhaust system.
Yep, exhaust system work sucks. I have known people to attack stubborn
exhaust bolts with a 44 Magnum.
Saludos,
Earle
>
> Jeff DeWitt
--
Posted via a free Usenet account from http://www.teranews.com
11-28-2007, 11:41 PM
#15
Guest
Posts: n/a
Re: 91 YJ catalytic converter?
"Jeff DeWitt" <JeffDeWitt@nc.rr.com> wrote in message
news:474e4044$0$9630$4c368faf@roadrunner.com...
> Earle Horton wrote:
> > "DougW" <I.only.read.usenet@invalid.address> wrote in message
> > news:9Nm3j.27459$aN3.24619@newsfe12.phx...
> >
> >>testert555 wrote:
> >>
> >>>Can anyone recommend a catalytic converter for my 91 YJ? There
> >>>is a huge difference is prices. I'm going to put it in myself and
> >>>cannot weld. Cheaper the better.
> >>
> >>Get it welded in. (in some states the cat must be welded on the
> >>engine side, has to do with emissions laws)
> >>
> >>A good local muffler shop should be able to do the job for $100 or
> >>so.
> >>
> >
> > I can understand the OP's concerns about economy, but a budget
> > converter
> > installed on the cheap isn't going to last long. Mine (OEM part)
> > has
> > been on there since the emissions recall of 1995, and is still going
> > strong. I doubt that the "guts" are still in it, but that is what a
> > free flow exhaust is for, to let the converter chunks out.
> > Seriously, this isn't something you want to go cheap on.
> >
> > Cheers,
> >
> > Earle
> >
> >
> >
>
> It's not a safety item and it's not going to seriously effect
> performance or fuel economy, as long as you can pass inspection
> I don't see anything wrong with cheaping out on a converter.
Four letters Jeff, "r", "u", "s" and "t". It's amazing how fast cheap
metal tries to get back to the earth it came from. That said you don't
have to get ripped off by the stealership. Just get a quality brand
name component, and you won't be sorry.
>
> That being said if you plan on keeping the vehicle for a long time
> then spend the extra bucks for a good converter, it's worth it to
> not have to mess with the exhaust system.
Yep, exhaust system work sucks. I have known people to attack stubborn
exhaust bolts with a 44 Magnum.
Saludos,
Earle
>
> Jeff DeWitt
--
Posted via a free Usenet account from http://www.teranews.com
news:474e4044$0$9630$4c368faf@roadrunner.com...
> Earle Horton wrote:
> > "DougW" <I.only.read.usenet@invalid.address> wrote in message
> > news:9Nm3j.27459$aN3.24619@newsfe12.phx...
> >
> >>testert555 wrote:
> >>
> >>>Can anyone recommend a catalytic converter for my 91 YJ? There
> >>>is a huge difference is prices. I'm going to put it in myself and
> >>>cannot weld. Cheaper the better.
> >>
> >>Get it welded in. (in some states the cat must be welded on the
> >>engine side, has to do with emissions laws)
> >>
> >>A good local muffler shop should be able to do the job for $100 or
> >>so.
> >>
> >
> > I can understand the OP's concerns about economy, but a budget
> > converter
> > installed on the cheap isn't going to last long. Mine (OEM part)
> > has
> > been on there since the emissions recall of 1995, and is still going
> > strong. I doubt that the "guts" are still in it, but that is what a
> > free flow exhaust is for, to let the converter chunks out.
> > Seriously, this isn't something you want to go cheap on.
> >
> > Cheers,
> >
> > Earle
> >
> >
> >
>
> It's not a safety item and it's not going to seriously effect
> performance or fuel economy, as long as you can pass inspection
> I don't see anything wrong with cheaping out on a converter.
Four letters Jeff, "r", "u", "s" and "t". It's amazing how fast cheap
metal tries to get back to the earth it came from. That said you don't
have to get ripped off by the stealership. Just get a quality brand
name component, and you won't be sorry.
>
> That being said if you plan on keeping the vehicle for a long time
> then spend the extra bucks for a good converter, it's worth it to
> not have to mess with the exhaust system.
Yep, exhaust system work sucks. I have known people to attack stubborn
exhaust bolts with a 44 Magnum.
Saludos,
Earle
>
> Jeff DeWitt
--
Posted via a free Usenet account from http://www.teranews.com
11-29-2007, 12:52 AM
#16
Guest
Posts: n/a
Re: 91 YJ catalytic converter?
Earle Horton wrote:
> Yep, exhaust system work sucks. I have known people to attack stubborn
> exhaust bolts with a 44 Magnum.
That's why the make air hammers and sell muffler specific chisels for them
<g>. With that and a good angle grinder, I fear nothing!
Just for fun, have you ever tried to weld on one of those "aluminized" jobs?
Between that and some grades of stainless, clamps are hard to avoid.
--
Will Honea
--
Posted via a free Usenet account from http://www.teranews.com
> Yep, exhaust system work sucks. I have known people to attack stubborn
> exhaust bolts with a 44 Magnum.
That's why the make air hammers and sell muffler specific chisels for them
<g>. With that and a good angle grinder, I fear nothing!
Just for fun, have you ever tried to weld on one of those "aluminized" jobs?
Between that and some grades of stainless, clamps are hard to avoid.
--
Will Honea
--
Posted via a free Usenet account from http://www.teranews.com
11-29-2007, 12:52 AM
#17
Guest
Posts: n/a
Re: 91 YJ catalytic converter?
Earle Horton wrote:
> Yep, exhaust system work sucks. I have known people to attack stubborn
> exhaust bolts with a 44 Magnum.
That's why the make air hammers and sell muffler specific chisels for them
<g>. With that and a good angle grinder, I fear nothing!
Just for fun, have you ever tried to weld on one of those "aluminized" jobs?
Between that and some grades of stainless, clamps are hard to avoid.
--
Will Honea
--
Posted via a free Usenet account from http://www.teranews.com
> Yep, exhaust system work sucks. I have known people to attack stubborn
> exhaust bolts with a 44 Magnum.
That's why the make air hammers and sell muffler specific chisels for them
<g>. With that and a good angle grinder, I fear nothing!
Just for fun, have you ever tried to weld on one of those "aluminized" jobs?
Between that and some grades of stainless, clamps are hard to avoid.
--
Will Honea
--
Posted via a free Usenet account from http://www.teranews.com
11-29-2007, 11:10 AM
#18
Guest
Posts: n/a
Re: 91 YJ catalytic converter?
"DougW" <I.only.read.usenet@invalid.address> wrote in message
news:S8B3j.29316$L15.24393@newsfe08.phx...
> ufatbastehd wrote:
> > On Nov 28, 6:36 pm, "J. Clarke" <jclarke.use...@***.net> wrote:
> >> DougW wrote:
> >>> testert555 wrote:
> >>>> Can anyone recommend a catalytic converter for my 91 YJ? There is
> >>>> a huge difference is prices. I'm going to put it in myself and
> >>>> cannot weld. Cheaper the better.
> >>
> >>> Get it welded in. (in some states the cat must be welded on the
> >>> engine side, has to do with emissions laws)
> >>
> >>> A good local muffler shop should be able to do the job for $100 or
> >>> so.
> >>
> >> In what states does it have to be welded? Or is this more
> >> California craziness?
>
> Could be. I checked the Oklahoma regs and they don't specify.
> Thought the local muffler shop told me that when I was thinking
> of swapping to a bolt-in unit.
Muffler shoppes will tell you anything, especially if they get to weld
the new unit in.
>
> > I got my cat from http://www.quadratec.com
> >
> > its clamped on and I passed inspection in NY
>
> The only problem I have with clamps is on many installs the
> pipe tends to rotate. A spot weld is usually all it takes
> to keep things in place.
>
If it is stubborn enough to need a spot weld, usually there is another
problem, such as mismatched pipe, a joint not inserted all the way or a
clamp the wrong size. The stainless steel exhaust components are pretty
slippery, but if you run the engine, retighten the clamps and repeat
usually even they will lock down eventually. I have one that I am
giving up on and will spot weld later today.
Cheers,
Earle
--
Posted via a free Usenet account from http://www.teranews.com
news:S8B3j.29316$L15.24393@newsfe08.phx...
> ufatbastehd wrote:
> > On Nov 28, 6:36 pm, "J. Clarke" <jclarke.use...@***.net> wrote:
> >> DougW wrote:
> >>> testert555 wrote:
> >>>> Can anyone recommend a catalytic converter for my 91 YJ? There is
> >>>> a huge difference is prices. I'm going to put it in myself and
> >>>> cannot weld. Cheaper the better.
> >>
> >>> Get it welded in. (in some states the cat must be welded on the
> >>> engine side, has to do with emissions laws)
> >>
> >>> A good local muffler shop should be able to do the job for $100 or
> >>> so.
> >>
> >> In what states does it have to be welded? Or is this more
> >> California craziness?
>
> Could be. I checked the Oklahoma regs and they don't specify.
> Thought the local muffler shop told me that when I was thinking
> of swapping to a bolt-in unit.
Muffler shoppes will tell you anything, especially if they get to weld
the new unit in.
>
> > I got my cat from http://www.quadratec.com
> >
> > its clamped on and I passed inspection in NY
>
> The only problem I have with clamps is on many installs the
> pipe tends to rotate. A spot weld is usually all it takes
> to keep things in place.
>
If it is stubborn enough to need a spot weld, usually there is another
problem, such as mismatched pipe, a joint not inserted all the way or a
clamp the wrong size. The stainless steel exhaust components are pretty
slippery, but if you run the engine, retighten the clamps and repeat
usually even they will lock down eventually. I have one that I am
giving up on and will spot weld later today.
Cheers,
Earle
--
Posted via a free Usenet account from http://www.teranews.com
11-29-2007, 11:10 AM
#19
Guest
Posts: n/a
Re: 91 YJ catalytic converter?
"DougW" <I.only.read.usenet@invalid.address> wrote in message
news:S8B3j.29316$L15.24393@newsfe08.phx...
> ufatbastehd wrote:
> > On Nov 28, 6:36 pm, "J. Clarke" <jclarke.use...@***.net> wrote:
> >> DougW wrote:
> >>> testert555 wrote:
> >>>> Can anyone recommend a catalytic converter for my 91 YJ? There is
> >>>> a huge difference is prices. I'm going to put it in myself and
> >>>> cannot weld. Cheaper the better.
> >>
> >>> Get it welded in. (in some states the cat must be welded on the
> >>> engine side, has to do with emissions laws)
> >>
> >>> A good local muffler shop should be able to do the job for $100 or
> >>> so.
> >>
> >> In what states does it have to be welded? Or is this more
> >> California craziness?
>
> Could be. I checked the Oklahoma regs and they don't specify.
> Thought the local muffler shop told me that when I was thinking
> of swapping to a bolt-in unit.
Muffler shoppes will tell you anything, especially if they get to weld
the new unit in.
>
> > I got my cat from http://www.quadratec.com
> >
> > its clamped on and I passed inspection in NY
>
> The only problem I have with clamps is on many installs the
> pipe tends to rotate. A spot weld is usually all it takes
> to keep things in place.
>
If it is stubborn enough to need a spot weld, usually there is another
problem, such as mismatched pipe, a joint not inserted all the way or a
clamp the wrong size. The stainless steel exhaust components are pretty
slippery, but if you run the engine, retighten the clamps and repeat
usually even they will lock down eventually. I have one that I am
giving up on and will spot weld later today.
Cheers,
Earle
--
Posted via a free Usenet account from http://www.teranews.com
news:S8B3j.29316$L15.24393@newsfe08.phx...
> ufatbastehd wrote:
> > On Nov 28, 6:36 pm, "J. Clarke" <jclarke.use...@***.net> wrote:
> >> DougW wrote:
> >>> testert555 wrote:
> >>>> Can anyone recommend a catalytic converter for my 91 YJ? There is
> >>>> a huge difference is prices. I'm going to put it in myself and
> >>>> cannot weld. Cheaper the better.
> >>
> >>> Get it welded in. (in some states the cat must be welded on the
> >>> engine side, has to do with emissions laws)
> >>
> >>> A good local muffler shop should be able to do the job for $100 or
> >>> so.
> >>
> >> In what states does it have to be welded? Or is this more
> >> California craziness?
>
> Could be. I checked the Oklahoma regs and they don't specify.
> Thought the local muffler shop told me that when I was thinking
> of swapping to a bolt-in unit.
Muffler shoppes will tell you anything, especially if they get to weld
the new unit in.
>
> > I got my cat from http://www.quadratec.com
> >
> > its clamped on and I passed inspection in NY
>
> The only problem I have with clamps is on many installs the
> pipe tends to rotate. A spot weld is usually all it takes
> to keep things in place.
>
If it is stubborn enough to need a spot weld, usually there is another
problem, such as mismatched pipe, a joint not inserted all the way or a
clamp the wrong size. The stainless steel exhaust components are pretty
slippery, but if you run the engine, retighten the clamps and repeat
usually even they will lock down eventually. I have one that I am
giving up on and will spot weld later today.
Cheers,
Earle
--
Posted via a free Usenet account from http://www.teranews.com
11-29-2007, 05:39 PM
#20
Guest
Posts: n/a
Re: 91 YJ catalytic converter?
Earle Horton wrote:
> "DougW" wrote ...
>> ufatbastehd wrote:
>>> On Nov 28, 6:36 pm, "J. Clarke" wrote:
>>>> DougW wrote:
>>>>> testert555 wrote:
>>>>>> Can anyone recommend a catalytic converter for my 91 YJ? There is
>>>>>> a huge difference is prices. I'm going to put it in myself and
>>>>>> cannot weld. Cheaper the better.
>>>>
>>>>> Get it welded in. (in some states the cat must be welded on the
>>>>> engine side, has to do with emissions laws)
>>>>
>>>>> A good local muffler shop should be able to do the job for $100 or
>>>>> so.
>>>>
>>>> In what states does it have to be welded? Or is this more
>>>> California craziness?
>>
>> Could be. I checked the Oklahoma regs and they don't specify.
>> Thought the local muffler shop told me that when I was thinking
>> of swapping to a bolt-in unit.
>
> Muffler shoppes will tell you anything, especially if they get to weld
> the new unit in.
True, but to weld on the bolt adapter would have been more money for the
shop.
>>
>>> I got my cat from http://www.quadratec.com
>>>
>>> its clamped on and I passed inspection in NY
>>
>> The only problem I have with clamps is on many installs the
>> pipe tends to rotate. A spot weld is usually all it takes
>> to keep things in place.
>>
> If it is stubborn enough to need a spot weld, usually there is another
> problem, such as mismatched pipe, a joint not inserted all the way or
> a clamp the wrong size. The stainless steel exhaust components are
> pretty slippery, but if you run the engine, retighten the clamps and
> repeat usually even they will lock down eventually. I have one that
> I am giving up on and will spot weld later today.
My problems always pop up when the exhaust hangers put torque on the
pipe. In the ZJ they are all off to one side so the whole assembly
tries to rotate.
--
DougW
> "DougW" wrote ...
>> ufatbastehd wrote:
>>> On Nov 28, 6:36 pm, "J. Clarke" wrote:
>>>> DougW wrote:
>>>>> testert555 wrote:
>>>>>> Can anyone recommend a catalytic converter for my 91 YJ? There is
>>>>>> a huge difference is prices. I'm going to put it in myself and
>>>>>> cannot weld. Cheaper the better.
>>>>
>>>>> Get it welded in. (in some states the cat must be welded on the
>>>>> engine side, has to do with emissions laws)
>>>>
>>>>> A good local muffler shop should be able to do the job for $100 or
>>>>> so.
>>>>
>>>> In what states does it have to be welded? Or is this more
>>>> California craziness?
>>
>> Could be. I checked the Oklahoma regs and they don't specify.
>> Thought the local muffler shop told me that when I was thinking
>> of swapping to a bolt-in unit.
>
> Muffler shoppes will tell you anything, especially if they get to weld
> the new unit in.
True, but to weld on the bolt adapter would have been more money for the
shop.
>>
>>> I got my cat from http://www.quadratec.com
>>>
>>> its clamped on and I passed inspection in NY
>>
>> The only problem I have with clamps is on many installs the
>> pipe tends to rotate. A spot weld is usually all it takes
>> to keep things in place.
>>
> If it is stubborn enough to need a spot weld, usually there is another
> problem, such as mismatched pipe, a joint not inserted all the way or
> a clamp the wrong size. The stainless steel exhaust components are
> pretty slippery, but if you run the engine, retighten the clamps and
> repeat usually even they will lock down eventually. I have one that
> I am giving up on and will spot weld later today.
My problems always pop up when the exhaust hangers put torque on the
pipe. In the ZJ they are all off to one side so the whole assembly
tries to rotate.
--
DougW