Lawn and Garden Equipment Repair and Restoration

  1. Core Engine Principles
    1. Internal Combustion Engine Theory
      1. Four-Stroke Engine Operation
        1. Intake Stroke
          1. Compression Stroke
            1. Power Stroke
              1. Exhaust Stroke
              2. Two-Stroke Engine Operation
                1. Intake and Compression Phase
                  1. Power and Exhaust Phase
                    1. Port Timing
                    2. Engine Comparison
                      1. Two-Stroke vs Four-Stroke Efficiency
                        1. Maintenance Requirements
                          1. Application Suitability
                            1. Power-to-Weight Ratios
                          2. Key Engine Components
                            1. Cylinder Block and Head
                              1. Cooling Passages
                                1. Mounting Surfaces
                                  1. Gasket Surfaces
                                  2. Piston Assembly
                                    1. Piston Construction
                                      1. Compression Rings
                                        1. Oil Control Rings
                                          1. Piston Pin
                                          2. Connecting Rod and Crankshaft
                                            1. Rod Bearings
                                              1. Main Bearings
                                                1. Crankshaft Journals
                                                  1. Counterweights
                                                  2. Valve Train Components
                                                    1. Camshaft
                                                      1. Valves
                                                        1. Valve Springs
                                                          1. Valve Lifters
                                                            1. Pushrods
                                                              1. Rocker Arms
                                                              2. Two-Stroke Specific Components
                                                                1. Reed Valves
                                                                  1. Exhaust Ports
                                                                    1. Transfer Ports
                                                                  2. Engine Measurements and Tolerances
                                                                    1. Using Precision Measuring Tools
                                                                      1. Caliper Techniques
                                                                        1. Micrometer Usage
                                                                          1. Dial Indicator Setup
                                                                          2. Critical Engine Measurements
                                                                            1. Bore and Stroke Dimensions
                                                                              1. Piston-to-Cylinder Clearance
                                                                                1. Valve Clearances
                                                                                  1. Bearing Clearances
                                                                                    1. End Play Measurements
                                                                                    2. Understanding Specifications
                                                                                      1. Manufacturer Tolerances
                                                                                        1. Wear Limits
                                                                                          1. Service Limits

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                                                                                      1. Foundations of Small Engine Repair

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                                                                                      3. Engine Systems Diagnosis and Service