Quote:
Originally Posted by rocketboy52
On flat ground I was seeing between 85-95 degrees C. Since Ive been through the entire coolant system, I am curious to know how to tell if Im running lean? I had an old mustang that had cooling issues and after replaceing the cooling system, I learned how to read spark plugs and with a slight tweak of the carb, all overheating issues went away. What is the equivalent for a diesel? How does one monitor and control the actual quantity of fuel delivered. I imagine the IP and Alda setting are the first places to look. It took me a few days to find a 24mm wrench, but I actually found a stubby angle open end wrench set at harbor frieght that included a 24mm wrench. I'm on assignment in San Diego again next week, so it won't be until next weekend that Im able to fiddle with my Alda adjustment. Wish me luck!
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An MB turbo diesel always runs lean, sort of... with no throttle plate, it has unmetered air entering the engine, and normally operates with an excess of air (although a plugged air filter, etc can change that). The heat produced is based almost entirely on power production, which is in turn based on fuel delivered. More fuel = more power (to a point) = more heat. I can't quite explain the details as to why this is so different than a gasser, but I do know they react totally different. What you describe on the gas engine doesn't apply to the diesel.
11-01-2009, 10:37 AM
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