> Yup Shane, the nice thing about that little unit was that I was able
> to tune the carb to the best compromise between HC and CO so
> calibration didnt really matter. The funny thing is that the engine
> will idle the same wether the emissions are "right on" or "way off" -
> so, there is no way to do this by ear.
The Jeepster was a '68 and was affected by a strange NOX law:
If you weren't the original owner, and the car was in the year range
between something like '67 - '73, you had to fit the car with a NOX
device which would disable the vacuum advance until the engine was at a
very high RPM, in the Jeep's case this was near redline.
This really affected derivability so I really hope that they do not
force us to use this device since it will render our cars pretty much
useless. I am emotionally preparing myself to take my TR off the road
until it is exempt, if it comes to that. Hopefully they wont have some
clause that prevents me from driving it again once that time comes.
Steve
>
>
> You and me together, Steve (I have a '74 too!). With the final
> implementation
> of SMOG Check II in California on Dec 1, 1997, your handheld meter and
> the
> tri-gas testers that can be bought surplus for a song may be of
> questionable
> benefit. Aside from the fact that they are not calibrated (as are the
>
> State-endorsed units) against a rigid standard, the new requirements
> will
> be for testing emissions of HC, CO, CO2, O2 and NOX *under load* (ie,
> on
> a dynometer, or rolling road in the Queens vernacular). I have seen
> no
> data for vehicles tested in this manner, so cannot say if the results
> will be different from the current static tests at 2500rpm. My gut
> feeling is that they will be, especially on older cars where there
> may be more drag from old bearings, brakes, etc.
>
> The handheld device and surplus garage equipment (there will be lots
> of them
> available Dec 1) will provide a first glimpse at an engines
> "state-of-health",
> but until we see some data comparing the old static with the new
> dynamic tests,
> I would be wary of handing out shekels for such a unit.
>
> Testing for allowable NOX emissions is another kettle of fish.
>
> SMOG Check II - coming to a state near you.
>
> Shane Ingate in San Diego
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