Re: how hard to run a diesel engine?????

Posted by Bob M on April 12, 2005 at 10:58:15 from (151.190.254.106):

In Reply to: how hard to run a diesel engine????? posted by vabill on April 12, 2005 at 06:40:28:

Operator’s manuals for modern, high horsepower JD tractors instruct the operator to “gear up and throttle down” whenever possible – i.e. to run the lowest RPM you can without lugging the engine.

How to tell if it’s lugging? So long as the engine RPMs hold up and it pulls thru hard spots, you see no black exhaust smoke when it’s pulling hard and the temperature stays normal, it’s not being lugged.

Why do this? By reducing RPM’s it reduces wear on the engine and saves significantly on fuel.

My experience is this strategy works. Have found a JD 8960 (370 HP Cummins governed at 2,100 PRM) will run happily all day long loafing along at 1,200-1,300 RPM pulling a light load. Same with an 8300 (rated 210(?) HP at 2,300 RPM) worked light.

What’s also signicant is the reduced NOISE! Even inside the factory cab the reduction in fan roar, etc. when throttled down is very noticable.

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