Engine Performance

Auto 793 will cover the following subjects, not necessarily in this order:

1. Big Four – What it takes to make an engine run
2. Exhaust Analysis – Pollution, good and bad combustion, what the machine measures, what the gases mean, examples and lab practice.
3. Engine Operation – The basic four stroke cycle, understanding vacuum, pressure and temperature conditions under basic modes of operation, normal and abnormal combustion.
4. Engine Testing – Cranking and running vacuum testing, cranking and running compression testing, cylinder balance testing, leakdown testing.
5. Timing Belts – How to suspect and find problems, testing for free play and proper position, how to change.
6. Air Induction systems – Turbocharger, supercharger, throttle body sludge, variable intake runner control.
7. Exhaust systems – pressure testing and diagnosis.
8. Fuel systems – Circuit examples, diagnosis, relays and amp testing. Fuel quality, pressure testing, flow testing, and leakdown testing.
9. Ignition systems – Primary and secondary basics, spark testing, leakage testing, timing theory and testing.
10. No-Start Diagnosis – Testing for the Big Four, fuel, spark, timing, injector but no spark, no spark or injector, primary ignition but no secondary, etc…

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