Could you have a bad temp gauge or sender? And yes.. IMHO based on my small undersanding of diesels if you have poor combustion then an engine would run cooler. Good cumbustion produces more heat.
Try this idea. Use a sensor to measure combustion temps. Adjust timing till you get the highest temps. Some say you already have sensors.... "your glow plugs" More on that topic here:
http://biodiesel.infopop.cc/groupee/forums/a/tpc/f/159605551/m/1071029711/r/3361009911#3361009911
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"Know other lessons I need to learn? TELL me. Tired of learning'em the hard way".
Glow Plug Wait: [i} Time of silence in homage Rudolph Diesel. Longer you own a diesel. more honor you give". [/i]
Life; SNAFU Situation Normal All Fouled Up, & FUBAR: Fouled Up Beyond All Repair
-Now: Snafued Jeep TJ w/OM617 2Be daily driver & building SS M1079 w/Ambo boxed /live in Adv. Truck, Diesel KLR conversion
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