The one big difference between cars and gas engine tractors is rpms. Cars , especially today routinely see 6000-7000 rpm . Tractors operate more in the 1000 to 1500 rpm range depending on year. You do not need as much timing advance at 1300rpm as you do at 7000rpm for spark to occur at the same given degree point in engine rotation. Computers may give you more control over engine performance but the old principle of keep it simple worked pretty well for the designers of the 20s 30s 40s 50s etc, as a lot of those tractors survived and operate as designed 70 or 80 years later . Computers are constantly changing and replacements for failed units become unavailable . Meanwhile the old magneto ignition or point condenser distributor and carbureted tractors keep plugging away . Pretty simple to diagnose points and condensers and carb equipped engines for the average farmer , not so much with computer controls. They both have their place but for a tractor I much prefer simplicity.
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Today's Featured Article - Tractor Hydraulics - The Basics - by Curtis Von Fange. Hydraulics was one of the greatest inventions for helping man compound the work he can do. It’s amazing how a little floor jack can lift tons and tons of weight with just the flick of a handle. What’s even more amazing is that all the principals of hydraulic theory can be wrapped up in such a small package. This same package applies to any hydraulic system from the largest bulldozer to the oldest and smallest tractor. This short series will take a look at the basic layout of a simple hydraul
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