86 CJ7 Failed Emissions Test -- Help
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Re: 86 CJ7 Failed Emissions Test -- Help
Your CO reading is the one that is telling. You are burning too much fuel
at cruise, and this is due only to fuel delivery. The other guy had it
nailed, check the air filter and choke, then you are looking at carb work.
No external adjustments for this, you probably have a sinking float. Don't
waste your money on a bunch of plugs and wires, and don't buy a catalytic
converter. The converter will make it pass this year, but by next year, all
of that excess fuel will destroy the catalyst and you will be back to
rebuilding the carb again.
Also, don't worry about the high HC readings during cruise, as they are a
by-product of the high CO rate. Fix the CO, the HC goes away.
Jerry
"L.W. (ßill) ------ III" <----------@***.net> wrote in message
news:3F958BBE.B9F08098@***.net...
> Hi Dan,
> Do your normal tune up, Plugs, cap and ignition wires, maybe,
> install a carburetor kit. Or install a new catalytic converter which
> will burn the Hydrocarbons and change Carbon Monoxide into harmless
> byproducts. My Bronco test: http://www.----------.com/smog.jpg It has
> almost three hundred thousand miles on it, and the heads have never been
> off.
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Dan Grulke wrote:
> >
> > My 86 CJ7 failed Virginia's strict emissions test, I need advice on
> > how to get it to pass. I can do mechancial work myself if I know what
> > to tackle. Here are the specifics:
> > 15 MPH Test 25 MPH Test
> > HC (Limit/Readings) 207/50 Pass 201/298 Fail
> > CO 1.76/.01 Pass 2.29/4.69 Fail
> > NO 3010/2192 Pass 2796/215 Pass
> > RPM 1926 Valid 1279 Valid
> > Dilution 14.9 Valid 16.8 Valid
> >
> > Visual components and smoke inspections passed.
> > Thanks in advance for any hints you may be willing to offer. Dan
at cruise, and this is due only to fuel delivery. The other guy had it
nailed, check the air filter and choke, then you are looking at carb work.
No external adjustments for this, you probably have a sinking float. Don't
waste your money on a bunch of plugs and wires, and don't buy a catalytic
converter. The converter will make it pass this year, but by next year, all
of that excess fuel will destroy the catalyst and you will be back to
rebuilding the carb again.
Also, don't worry about the high HC readings during cruise, as they are a
by-product of the high CO rate. Fix the CO, the HC goes away.
Jerry
"L.W. (ßill) ------ III" <----------@***.net> wrote in message
news:3F958BBE.B9F08098@***.net...
> Hi Dan,
> Do your normal tune up, Plugs, cap and ignition wires, maybe,
> install a carburetor kit. Or install a new catalytic converter which
> will burn the Hydrocarbons and change Carbon Monoxide into harmless
> byproducts. My Bronco test: http://www.----------.com/smog.jpg It has
> almost three hundred thousand miles on it, and the heads have never been
> off.
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Dan Grulke wrote:
> >
> > My 86 CJ7 failed Virginia's strict emissions test, I need advice on
> > how to get it to pass. I can do mechancial work myself if I know what
> > to tackle. Here are the specifics:
> > 15 MPH Test 25 MPH Test
> > HC (Limit/Readings) 207/50 Pass 201/298 Fail
> > CO 1.76/.01 Pass 2.29/4.69 Fail
> > NO 3010/2192 Pass 2796/215 Pass
> > RPM 1926 Valid 1279 Valid
> > Dilution 14.9 Valid 16.8 Valid
> >
> > Visual components and smoke inspections passed.
> > Thanks in advance for any hints you may be willing to offer. Dan
Guest
Posts: n/a
Re: 86 CJ7 Failed Emissions Test -- Help
Your CO reading is the one that is telling. You are burning too much fuel
at cruise, and this is due only to fuel delivery. The other guy had it
nailed, check the air filter and choke, then you are looking at carb work.
No external adjustments for this, you probably have a sinking float. Don't
waste your money on a bunch of plugs and wires, and don't buy a catalytic
converter. The converter will make it pass this year, but by next year, all
of that excess fuel will destroy the catalyst and you will be back to
rebuilding the carb again.
Also, don't worry about the high HC readings during cruise, as they are a
by-product of the high CO rate. Fix the CO, the HC goes away.
Jerry
"L.W. (ßill) ------ III" <----------@***.net> wrote in message
news:3F958BBE.B9F08098@***.net...
> Hi Dan,
> Do your normal tune up, Plugs, cap and ignition wires, maybe,
> install a carburetor kit. Or install a new catalytic converter which
> will burn the Hydrocarbons and change Carbon Monoxide into harmless
> byproducts. My Bronco test: http://www.----------.com/smog.jpg It has
> almost three hundred thousand miles on it, and the heads have never been
> off.
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Dan Grulke wrote:
> >
> > My 86 CJ7 failed Virginia's strict emissions test, I need advice on
> > how to get it to pass. I can do mechancial work myself if I know what
> > to tackle. Here are the specifics:
> > 15 MPH Test 25 MPH Test
> > HC (Limit/Readings) 207/50 Pass 201/298 Fail
> > CO 1.76/.01 Pass 2.29/4.69 Fail
> > NO 3010/2192 Pass 2796/215 Pass
> > RPM 1926 Valid 1279 Valid
> > Dilution 14.9 Valid 16.8 Valid
> >
> > Visual components and smoke inspections passed.
> > Thanks in advance for any hints you may be willing to offer. Dan
at cruise, and this is due only to fuel delivery. The other guy had it
nailed, check the air filter and choke, then you are looking at carb work.
No external adjustments for this, you probably have a sinking float. Don't
waste your money on a bunch of plugs and wires, and don't buy a catalytic
converter. The converter will make it pass this year, but by next year, all
of that excess fuel will destroy the catalyst and you will be back to
rebuilding the carb again.
Also, don't worry about the high HC readings during cruise, as they are a
by-product of the high CO rate. Fix the CO, the HC goes away.
Jerry
"L.W. (ßill) ------ III" <----------@***.net> wrote in message
news:3F958BBE.B9F08098@***.net...
> Hi Dan,
> Do your normal tune up, Plugs, cap and ignition wires, maybe,
> install a carburetor kit. Or install a new catalytic converter which
> will burn the Hydrocarbons and change Carbon Monoxide into harmless
> byproducts. My Bronco test: http://www.----------.com/smog.jpg It has
> almost three hundred thousand miles on it, and the heads have never been
> off.
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Dan Grulke wrote:
> >
> > My 86 CJ7 failed Virginia's strict emissions test, I need advice on
> > how to get it to pass. I can do mechancial work myself if I know what
> > to tackle. Here are the specifics:
> > 15 MPH Test 25 MPH Test
> > HC (Limit/Readings) 207/50 Pass 201/298 Fail
> > CO 1.76/.01 Pass 2.29/4.69 Fail
> > NO 3010/2192 Pass 2796/215 Pass
> > RPM 1926 Valid 1279 Valid
> > Dilution 14.9 Valid 16.8 Valid
> >
> > Visual components and smoke inspections passed.
> > Thanks in advance for any hints you may be willing to offer. Dan
Guest
Posts: n/a
Re: 86 CJ7 Failed Emissions Test -- Help
Your CO reading is the one that is telling. You are burning too much fuel
at cruise, and this is due only to fuel delivery. The other guy had it
nailed, check the air filter and choke, then you are looking at carb work.
No external adjustments for this, you probably have a sinking float. Don't
waste your money on a bunch of plugs and wires, and don't buy a catalytic
converter. The converter will make it pass this year, but by next year, all
of that excess fuel will destroy the catalyst and you will be back to
rebuilding the carb again.
Also, don't worry about the high HC readings during cruise, as they are a
by-product of the high CO rate. Fix the CO, the HC goes away.
Jerry
"L.W. (ßill) ------ III" <----------@***.net> wrote in message
news:3F958BBE.B9F08098@***.net...
> Hi Dan,
> Do your normal tune up, Plugs, cap and ignition wires, maybe,
> install a carburetor kit. Or install a new catalytic converter which
> will burn the Hydrocarbons and change Carbon Monoxide into harmless
> byproducts. My Bronco test: http://www.----------.com/smog.jpg It has
> almost three hundred thousand miles on it, and the heads have never been
> off.
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Dan Grulke wrote:
> >
> > My 86 CJ7 failed Virginia's strict emissions test, I need advice on
> > how to get it to pass. I can do mechancial work myself if I know what
> > to tackle. Here are the specifics:
> > 15 MPH Test 25 MPH Test
> > HC (Limit/Readings) 207/50 Pass 201/298 Fail
> > CO 1.76/.01 Pass 2.29/4.69 Fail
> > NO 3010/2192 Pass 2796/215 Pass
> > RPM 1926 Valid 1279 Valid
> > Dilution 14.9 Valid 16.8 Valid
> >
> > Visual components and smoke inspections passed.
> > Thanks in advance for any hints you may be willing to offer. Dan
at cruise, and this is due only to fuel delivery. The other guy had it
nailed, check the air filter and choke, then you are looking at carb work.
No external adjustments for this, you probably have a sinking float. Don't
waste your money on a bunch of plugs and wires, and don't buy a catalytic
converter. The converter will make it pass this year, but by next year, all
of that excess fuel will destroy the catalyst and you will be back to
rebuilding the carb again.
Also, don't worry about the high HC readings during cruise, as they are a
by-product of the high CO rate. Fix the CO, the HC goes away.
Jerry
"L.W. (ßill) ------ III" <----------@***.net> wrote in message
news:3F958BBE.B9F08098@***.net...
> Hi Dan,
> Do your normal tune up, Plugs, cap and ignition wires, maybe,
> install a carburetor kit. Or install a new catalytic converter which
> will burn the Hydrocarbons and change Carbon Monoxide into harmless
> byproducts. My Bronco test: http://www.----------.com/smog.jpg It has
> almost three hundred thousand miles on it, and the heads have never been
> off.
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Dan Grulke wrote:
> >
> > My 86 CJ7 failed Virginia's strict emissions test, I need advice on
> > how to get it to pass. I can do mechancial work myself if I know what
> > to tackle. Here are the specifics:
> > 15 MPH Test 25 MPH Test
> > HC (Limit/Readings) 207/50 Pass 201/298 Fail
> > CO 1.76/.01 Pass 2.29/4.69 Fail
> > NO 3010/2192 Pass 2796/215 Pass
> > RPM 1926 Valid 1279 Valid
> > Dilution 14.9 Valid 16.8 Valid
> >
> > Visual components and smoke inspections passed.
> > Thanks in advance for any hints you may be willing to offer. Dan
Guest
Posts: n/a
Re: 86 CJ7 Failed Emissions Test -- Help
In message <9be7d463.0310211100.6158f3ab@posting.google.com >, "Dan Grulke"
wrote:
>My 86 CJ7 failed Virginia's strict emissions test, I need advice on
>how to get it to pass. I can do mechancial work myself if I know what
>to tackle. Here are the specifics:
> 15 MPH Test 25 MPH Test
>HC (Limit/Readings) 207/50 Pass 201/298 Fail
>CO 1.76/.01 Pass 2.29/4.69 Fail
>NO 3010/2192 Pass 2796/215 Pass
>RPM 1926 Valid 1279 Valid
>Dilution 14.9 Valid 16.8 Valid
>
>Visual components and smoke inspections passed.
>Thanks in advance for any hints you may be willing to offer. Dan
Too rich @ 25 MPH. Possible carb problem, malfunctioning feedback system or
dirty air filter.
Don't be surprised to see a higher NO number when you get the mixture leaned
out.
wrote:
>My 86 CJ7 failed Virginia's strict emissions test, I need advice on
>how to get it to pass. I can do mechancial work myself if I know what
>to tackle. Here are the specifics:
> 15 MPH Test 25 MPH Test
>HC (Limit/Readings) 207/50 Pass 201/298 Fail
>CO 1.76/.01 Pass 2.29/4.69 Fail
>NO 3010/2192 Pass 2796/215 Pass
>RPM 1926 Valid 1279 Valid
>Dilution 14.9 Valid 16.8 Valid
>
>Visual components and smoke inspections passed.
>Thanks in advance for any hints you may be willing to offer. Dan
Too rich @ 25 MPH. Possible carb problem, malfunctioning feedback system or
dirty air filter.
Don't be surprised to see a higher NO number when you get the mixture leaned
out.
Guest
Posts: n/a
Re: 86 CJ7 Failed Emissions Test -- Help
In message <9be7d463.0310211100.6158f3ab@posting.google.com >, "Dan Grulke"
wrote:
>My 86 CJ7 failed Virginia's strict emissions test, I need advice on
>how to get it to pass. I can do mechancial work myself if I know what
>to tackle. Here are the specifics:
> 15 MPH Test 25 MPH Test
>HC (Limit/Readings) 207/50 Pass 201/298 Fail
>CO 1.76/.01 Pass 2.29/4.69 Fail
>NO 3010/2192 Pass 2796/215 Pass
>RPM 1926 Valid 1279 Valid
>Dilution 14.9 Valid 16.8 Valid
>
>Visual components and smoke inspections passed.
>Thanks in advance for any hints you may be willing to offer. Dan
Too rich @ 25 MPH. Possible carb problem, malfunctioning feedback system or
dirty air filter.
Don't be surprised to see a higher NO number when you get the mixture leaned
out.
wrote:
>My 86 CJ7 failed Virginia's strict emissions test, I need advice on
>how to get it to pass. I can do mechancial work myself if I know what
>to tackle. Here are the specifics:
> 15 MPH Test 25 MPH Test
>HC (Limit/Readings) 207/50 Pass 201/298 Fail
>CO 1.76/.01 Pass 2.29/4.69 Fail
>NO 3010/2192 Pass 2796/215 Pass
>RPM 1926 Valid 1279 Valid
>Dilution 14.9 Valid 16.8 Valid
>
>Visual components and smoke inspections passed.
>Thanks in advance for any hints you may be willing to offer. Dan
Too rich @ 25 MPH. Possible carb problem, malfunctioning feedback system or
dirty air filter.
Don't be surprised to see a higher NO number when you get the mixture leaned
out.
Guest
Posts: n/a
Re: 86 CJ7 Failed Emissions Test -- Help
In message <9be7d463.0310211100.6158f3ab@posting.google.com >, "Dan Grulke"
wrote:
>My 86 CJ7 failed Virginia's strict emissions test, I need advice on
>how to get it to pass. I can do mechancial work myself if I know what
>to tackle. Here are the specifics:
> 15 MPH Test 25 MPH Test
>HC (Limit/Readings) 207/50 Pass 201/298 Fail
>CO 1.76/.01 Pass 2.29/4.69 Fail
>NO 3010/2192 Pass 2796/215 Pass
>RPM 1926 Valid 1279 Valid
>Dilution 14.9 Valid 16.8 Valid
>
>Visual components and smoke inspections passed.
>Thanks in advance for any hints you may be willing to offer. Dan
Too rich @ 25 MPH. Possible carb problem, malfunctioning feedback system or
dirty air filter.
Don't be surprised to see a higher NO number when you get the mixture leaned
out.
wrote:
>My 86 CJ7 failed Virginia's strict emissions test, I need advice on
>how to get it to pass. I can do mechancial work myself if I know what
>to tackle. Here are the specifics:
> 15 MPH Test 25 MPH Test
>HC (Limit/Readings) 207/50 Pass 201/298 Fail
>CO 1.76/.01 Pass 2.29/4.69 Fail
>NO 3010/2192 Pass 2796/215 Pass
>RPM 1926 Valid 1279 Valid
>Dilution 14.9 Valid 16.8 Valid
>
>Visual components and smoke inspections passed.
>Thanks in advance for any hints you may be willing to offer. Dan
Too rich @ 25 MPH. Possible carb problem, malfunctioning feedback system or
dirty air filter.
Don't be surprised to see a higher NO number when you get the mixture leaned
out.
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