DSL 912 - Fuel Systems

1. Determine safety and personal health hazards
   1. Wear appropriate Personal Protective Equipment (PPE)
   2. Practice shop cleanliness
   3. Explain tool maintenance and safety
2. Summarize components of a fuel system
   1. Discuss fuel quality and the effect it has on engine performance
   2. Explain fuel tanks, filters, level sensors, and gas cap functions and repairs
   3. Describe fuel/air ratios and ideal mixing techniques
   4. List the various engine fuels
   5. Define fuel transfer pumps, fuel nozzles and injectors, injection pumps, carburetors, and propane fuel components
   6. Explain how fuel metering effects horsepower, torque, and emissions
   7. Describe EFI system
3. Repair components in fuel systems
   1. Inspect fuel filter, fuel lines, and hoses
   2. Replace fuel filter, fuel lines, and hoses
   3. Identify fuel system designs
4. Test fuel components and operation of idle and speed controls
   1. Diagnose drivability problems
   2. Explain why diagnostic performance tests are necessary
   3. Repair starting and drivability concerns on engines
   4. Describe variances in fuel pressures
   5. Summarize costs associated with repair vs replacement of components
   6. Practice setting and adjusting linkages and cables for fuel delivery and shot offs