ALDA Tweaking

[Zoonhollis]

I posted the below in the DIESEL DISCUSSION, but I thought I'd run it by the experts in here as well:


After adjusting my ALDA a couple of weeks ago, I had my '84 300D running very well; she was nice and peppy off the line...for a diesel. Now it seems that gremlins have snuck in under the hood and adjusted the ALDA back to its original position. Is it normal for this car to need several adjustments in succession? The fuel mileage also dropped along with the power curve, so I re-enriched the mixture to bring her back to life again. Am I going to face the prospect of continually adjusting this thing? Am I doing harm? Any help is appreciated.