The Tractor Vet has it right. The diesel engine physics is different than the gas. It produces maximum torque at a much lower RPM than a gas job and with far less fuel. As I'm an electrical engineer and not a mechanical engineer I don't have all the answers and don't presume to know things out of my area of expertise. But what I do know is that a diesel under load reacts quite differently than a gas/ignition engine under load. In order to fully understand the physics of each technology you would have to study the HP, torque and fuel usage curves. Not all diesel engines are created equal. Many of the older diesel designs are a bit weak in the torque/lugging department, while the more recent designs are light years ahead. John Deere offers an economy PTO that runs 540 at 1700 engine rpm... and not at 2400 engine RPM..why?.. because max torque is achieved around 1700 and while max HP is achieved near the rated speed of 2400 it is not necessary to power most PTO implements, and I realize a 30-35% fuel savings.
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Today's Featured Article - Grain Threshing in the Early 40's - by Jerry D. Coleman. How many of you can sit there and say that you have plowed with a mule? Well I would say not many, but maybe a few. This story is about the day my Grandfather Brown (true name) decided along with my parents to purchase a new Ford tractor. It wasn't really new except to us. The year was about 1967 and my father found a good used Ford 601 tractor to use on the farm instead of "Bob", our old mule. Now my grandfather had had this mule since the mid 40's and he was getting some age on him. S
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1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
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