This course will introduce students to the systems and the mechanics of small engines. Roll up your sleeves and join us to learn how small engines work, and how to service and repair them. This class examines the workings of 2-cycle and 4-cycle engines and the
theory of operation. Fuel systems, basic electrical, maintenance and storage of power equipment are some of the topics covered. Students will gain valuable insight to the Auto Industry that will provide guidance into Career and College pathways.
Unit | Timeframe | Big Ideas (Statements or Essential Questions) and Major Learning Experiences from Unit |
|---|---|---|
Introduction to small engine repair and safe practices | 3 weeks | Explain personal and environmental safety practices associated with clothing; eye protection; hand tools; power equipment; proper ventilation; and the handling, storage, and disposal of chemicals/materials in accordance with local, state, and federal safety and environmental regulations. S/P2 is utilized. |
Tools and equipment | 2 weeks | Wrenches, sockets, screw drivers, pliers, cutters, ratchets, and more are explained as well as their uses. Bench grinders and drill use. Fastener identification and torque |
4 cycle theory and mechanical engine operation | 3 weeks | Intake, compression, power, and exhaust are thoroughly explained. Crankshaft, camshaft, pistons, connecting rods, valves, as well as engine block and cylinder heads are introduced. Lubrication systems. Cooling systems |
2 cycle theory and mechanical engine operation | 2 weeks | Intake, compression, power, and exhaust are thoroughly explained and how they are performed using only 2 strokes of the piston. |
Fuel and carburation | 3 weeks | Fuel delivery, Fuels and their properties. Venturi principles. Carburetor circuits |
Basic electrical and ignition systems | 4 weeks | Complete, open, and short circuits are explained. Transformer principals. Primary and secondary ignition systems. Spark plugs and magnetos |
Cutting blades, shear pins, belts, and maintenance | 2 weeks | Sharpening cutting tools, replacing shear pins, replacing belts, and performing small engine maintenance |