[Healeys] Acceptable CO

[David Porter]

Well yeah, but it won't run, nor pass emissions if HC is too high or too
low..  If owners would only run their cars are the factory ignition
setting...

 

frogeye at porterscustom.com

Porter Customs   2909 Arno NE
Albuquerque, NM USA 87107
505-352-1378
1954 BN2  1959 AN5
Porter Custom Bicycles

cars:
 www.britishcarforum.com/portercustoms.html
gallery:
http://picasaweb.google.com/porterscustombicycles/PorterCustomBicyclesStuff

GO HERE:  <http://porterbikes.com/> http://porterbikes.com/  nice
pictures-fun facts-my world

  _____  

From: Richard Ewald [mailto:richard.ewald at gmail.com] 
Sent: Friday, July 06, 2012 12:08 PM
To: David Porter
Cc: Richard Kahn; Healey List
Subject: Re: [Healeys] Acceptable CO

 

More later, I'm real busy now, but HC is high when the car is rich and when
it is lean, so looking at HC alone does not help.

Rick

On Fri, Jul 6, 2012 at 10:44 AM, David Porter <frogeye at porterscustom.com>
wrote:

This is interesting, but isn't HC level the level that ultimately determines
the CO level? My '54 doesn't seem to have a CO adjustment.. ;~)
dave

frogeye at porterscustom.com

Porter Customs   2909 Arno NE
Albuquerque, NM USA 87107
505-352-1378
1954 BN2  1959 AN5
Porter Custom Bicycles

cars:
 www.britishcarforum.com/portercustoms.html
gallery:
http://picasaweb.google.com/porterscustombicycles/PorterCustomBicyclesStuff

GO HERE: http://porterbikes.com/  nice pictures-fun facts-my world


-----Original Message-----
From: healeys-bounces at autox.team.net [mailto:healeys-bounces at autox.team.net]
On Behalf Of Richard Ewald
Sent: Friday, July 06, 2012 10:41 AM
To: Richard Kahn
Cc: Healey List
Subject: Re: [Healeys] Acceptable CO

Two percent is natural?  I would love to see a cite for that.  According to
Wikipedia on CO air contains about 0.1 part per million by volume.  OSHA
limits long term exposure to 50 PPM  Both of these numbers are way way
below 2%
A CO meter is zeroed at ambient air, which might have a couple of PPM.
 Back in the day when I did smogs, I worked in a shop next to a very busy
freeway.  The air was not quite as pure as I would have liked, and several
times I did smogs that showed negative CO from the exhaust on modern cars.
At sea level, the cars with SU I have set up are most happy at about 6.5-7%
CO at idle.  I would expect similar results at altitude.
Rick

On Fri, Jul 6, 2012 at 8:55 AM, Richard Kahn <tahoehealey at hotmail.com>wrote:

>  One exhaust pipe reads 4%, the other almost 5%. two percent is natural to
> the atmosphere at sea level. I'm not sure what it is at 6500 ft but the
> instrument is "trued" to 2% befor using. I guess that is rich mixture but
> it runs great.
> Richard Kahn
>

> ------------------------------

> Date: Thu, 5 Jul 2012 11:19:34 -0700
>
> Subject: Re: [Healeys] Acceptable CO
> From: richard.ewald at gmail.com
> To: tahoehealey at hotmail.com
> CC: healeys at autox.team.net
>
>
> What percentage CO do you have currently?