Posted by 300jk on December 24, 2020 at 10:05:07 from (172.58.225.100):
Just something I�m curious about and I�m sure somewhere there is a mathematical formula to figure it out. An example I�ll use is this. We have an Oliver 1650 gas tractor we moldboard plow with. Tractor is rated at 65-66 hp. Growing up we were always told by dad to run the tractor at around 1700-1800 rpm. I believe the the engine has an operating rpm of around 2400 rpm at wide open throttle . How much of that 65 hp are we using at say 1700 rpm ? We never ever use any tractor at full rpm even for pto work where 540 pto rpm is. Usually around 2000 for pto work like making hay ect. I do realize pto equipment is designed to run at 540, but that�s not how I was taught. I do however run my 300 wide open when blowing snow.
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Today's Featured Article - Timing Your Magneto Ignition Tractor - by Chris Pratt. If you have done major engine work or restored your tractor, chances are you removed the magneto and spark plug wires and eventually reached the point where you had to put it all back together and make it run. On our first cosmetic restoration, not having a manual, we carefully marked the wires, taped the magneto in the position it came off, and were careful not to turn the engine over while we had these components off. We thought we could get by with this since the engine ran perfectly and would not need any internal work. After the cleanup and painting was done, we began reassembly and finally came to t
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