The best system I've seen is used by the U.S. Army Ordnance Center and School. You start with Basic knowledge and skills, (This is a hammer, this is a screwdriver, etc.) Students are taught how to use and care for tools. Next comes classroom presentations about the operation of a simple engine (explain combustion process, cycles, etc.) Then each student gets a B&S 5hp engine to completely disassemble, inspect, and re-assemble. The engine must run properly before moving to the next step. Next we each received a GM 6.2L diesel HMMWV engine and repeated the process. Electrical components are also worked into the schedule as needed (alternators, starters, etc.)with the appropriate information about theory of operation. At the end of the program, a vehicle is rigged by the instructors to simulate problems that require troubleshooting. Think clear lacquer on a set of points, kinked fuel lines hidden from view, etc. You will have much better results when the student has a good knowledge of what is supposed to happen in an engine, transmission, or electrical system before they touch it. If you show someone how to perform a tune-up without an understanding of what each component is supposed to do you have only shown them how to be a parts changer. Suggested reading- Army TM 9-243 "Use and Care of Hand Tools and Measuring Tools" and TM 9-8000 "Principles of Automotive Vehicles" Both publications are readily available in the public domain- they are not copyrighted. Just my two cent's worth, hope it's helpful. Gary- US Army MOS 63G, USAOC&S honor grad-1987.
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Today's Featured Article - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let’s make one more addition to our series on hydraulics. I’ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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