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A turn of the screw...
Posted by mcnash [Email] (more from mcnash) on Wed, 25 Feb 2004 15:34:24
In Reply to: The perfect idle..., mcnash, Mon, 23 Feb 2004 14:31:15
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To Kevin, LJB, Andy, all of you have valid points, and the spark plug issue is interesting. But given that you have no vacuum leaks, timing is good, and plugs are sparking, it comes down to a turn of the screw, that 3mm screw that controls the mixture, and for me, adjusting it for proper idle and performance is more art than science. In fact, the Haynes manual has 2 CO settings, 3.5% for Europe, and 1.5-2.0% for North America. Anyone who drove cars in the 70s knows about smog pumps and the rudimentary emissions stuff that cars had then, and how they adversely affected performance.
I know that 1.5% CO gives great mileage but a lumpy idle, and 3.5% give a smooth idle, but mileage is off and plugs foul a bit. Is there no happy medium, some "Saab whisperer" trick, that will give good results?
mcnash
posted by 209.86.143...
Posts in this Thread:
- The perfect idle..., mcnash, Mon, 23 Feb 2004 14:31:15
- A turn of the screw..., mcnash, Wed, 25 Feb 2004 15:34:24 <-- Viewing This Message
- Re: The perfect idle..., Kevin, Wed, 25 Feb 2004 04:14:24
- Re: What I've learned, LJB, Mon, 23 Feb 2004 18:09:24
- I don't have any insights, but I surely want...., Brently, Mon, 23 Feb 2004 15:24:31
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