kennyd said:
While this is very true for a engine that is broken in, the engine in question is brand new, with only 1.5 hrs on the clock. Proper break-in procedures early on will ensure a long engine life.
In '61 grandpa got to tour the Deere plant in Iowa where they made his 4010. The tractors came out the door, literally, at WOT. This was after they were dynoed at WOT to make sure they worked. Your tractor motor is more broke in at the factory than you think.
So, my question is, that I already know the answer to, is.... If the motor is meant to run at a given rpm, why does it need to be "broke in" at other rpm 's???
Let's put this in perspective another way. If your car averages 45 miles per hour of use, in 5000 hours, you will have driven about 225,000 miles. The typical ag diesel is rated for 5000 hours. That is equal to the life of a typical car...if not more becouse of the harsh conditions an ag motor encounters in dusty/muddy/alway's heavily loaded, conditions. Now your car must accelerate up to various speeds, with various throttle settings all the time. Some day's you might just go to the store with a light foot, and only rev the motor up to say 2700 rpms, during the week, say, 3 day's a week, your running late for work, so you drive harder, now your reving your motor up to 3600 rpm's. In both cases, the motor is going up and down in rpm's, while the transmission (or operator) is shifting gears. In this case, the motor needs to be broken in for the various rpm ranges the motor will encounter over it's life. A properly operated tractor should see the same rpm's at a minimum of 80% of it's life. You need the motor "broke in" in it's optimum operating rpms, so you get maximum hp once the rings are finished "seating". I'm not out to debate the issue, I'm just giving more of an explanation on why I stated what I did in my first post.
