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#713436 09/08/21 06:34 PM
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Does anyone know what the exhaust co level for a 1981 3.5 +8 would be?

GARYMYNARD #713466 09/08/21 10:45 PM
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https://assets.publishing.service.g...dards-for-road-vehicles-19th-edition.pdf

The above document states a CO level of 4.5% vol for a pass for a non cat vehicle of your age. 🤔🔧


1994 +8, BMW Calypso Red.
2002 4/4, 4 seater, BMW Calypso Red.
How do you open the boot?
Calypso Red #713556 10/08/21 07:27 PM
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I looked this up, but iam sure it should be lower than that.

GARYMYNARD #713599 11/08/21 06:31 AM
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I suppose it shows why catalytic converters were introduced.


1994 +8, BMW Calypso Red.
2002 4/4, 4 seater, BMW Calypso Red.
How do you open the boot?
GARYMYNARD #713724 11/08/21 06:33 PM
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I read somewhere that air contains 2% co. is this true?

David Byrne

GARYMYNARD #713730 11/08/21 07:16 PM
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I've never heard that. I thought there were only trace amounts of co and co2...... isn't that one of the arguments against co and co2 causing warming?....that even if you double the amount of them it's still a tiny/trace in the air?
I'm not supporting that argument just outlining it.

I'm probably wrong, I often am.

Nick

GARYMYNARD #713733 11/08/21 07:21 PM
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"Clean" air contains 78% Nitrogen, 21% Oxygen and 0.93% Argon plus a few other gasses in minuscule amounts.

"Dirty" air in the city for example would have CO in it but the amount depends on the pollution level.


Bob

2009 Black Roadster
1999 4/4 2 litre Zetec
GARYMYNARD #716073 30/08/21 09:55 AM
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I find my Alvis with twin SU's runs very well at 4%


1999 Morgan Plus 8. 3.9 ....
1961 Alvis TD21 Series1 3 Litre Auto....

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