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Transcript

  • 1. Engine Operation
  • 2. The Four Stroke Cycle
    • Intake
    • Compression
    • Power
    • Exhaust
  • 3. Intake
    • Intake valve opens
    • Air fuel mixture enters the cylinder
    • Piston moves down
  • 4. Compression
    • Piston moves upward
    • Intake valve closed
    • Air-fuel mixture is compressed
  • 5. Power
    • Spark plug fires
    • Ignition proceeds
    • Piston is forced down
  • 6. Exhaust
    • Exhaust valve opens
    • Piston moves upward
    • Spent gas pushed into exhaust system
  • 7. Diagnosis
    • T hree vital systems to establish a diagnostic routine for the engine.
    • Fuel
    • Compression or Air
    • Ignition or Fire
  • 8. Fuel system diagnosis
    • Is there gas in the tank?
    • Is there gas to the intake manifold?
    • Filters?
    • Pressure test?
  • 9. Compression system
    • Is the air filter clean?
    • Is the exhaust system flowing?
    • Compression Test
  • 10. Ignition System
    • Is there spark at the spark plug?
    • Is there spark from the coil?
    • Is there power to the coil?
    • Results of a system diagnostic test?