Auxiliary Air Valve question |
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Auxiliary Air Valve question |
torakki |
Feb 1 2024, 07:41 PM
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#1
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Newbie Group: Members Posts: 43 Joined: 5-October 18 From: Nor Cal Member No.: 22,545 Region Association: Northern California |
This is on a '74 2.0. This car's been on and off the back burner for a number of years. (To many cars). It now runs very well, "Except", when it's cold, it idles perfect. As it warms, (about 2 minutes) the idle gets faster to about 1800 rpm. After a 15-to-20-minute drive, I shut it off. Restart a few minutes later and the idle is slow to wont idle fast enough to keep running. So, I'm checking the Auxiliary air valve (I took it apart) and when it's cold, it's open halfway. When it gets warm, it closes. Shouldn't it be opening when warm to let in more air to keep the idle speed up? In other words, lean out the mixture? I would think, when cold, it should be closed to richen up the fuel and warm, open to lean out.
Am I 180 degrees off? Thanks for any input. |
iankarr |
Feb 3 2024, 02:48 PM
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#2
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The wrencher formerly known as Cuddy_K Group: Members Posts: 2,481 Joined: 22-May 15 From: Heber City, UT Member No.: 18,749 Region Association: Intermountain Region |
You can see more about how the AAR works in this video...forward to 7:15 for detailed shots.
https://www.youtube.com/watch?v=cBdjLrxvBIM |
Lo-Fi Version | Time is now: 10th June 2024 - 03:47 AM |
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