engine operaion
Post on 12-Sep-2014
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DESCRIPTION
TRANSCRIPT
![Page 1: Engine operaion](https://reader033.vdocuments.mx/reader033/viewer/2022061104/5412d0c78d7f720a4e8b46d8/html5/thumbnails/1.jpg)
Engine Operation
![Page 2: Engine operaion](https://reader033.vdocuments.mx/reader033/viewer/2022061104/5412d0c78d7f720a4e8b46d8/html5/thumbnails/2.jpg)
The Four Stroke Cycle
Intake Compression Power Exhaust
![Page 3: Engine operaion](https://reader033.vdocuments.mx/reader033/viewer/2022061104/5412d0c78d7f720a4e8b46d8/html5/thumbnails/3.jpg)
Intake
Intake valve opens
Air fuel mixture enters the cylinder
Piston moves down
![Page 4: Engine operaion](https://reader033.vdocuments.mx/reader033/viewer/2022061104/5412d0c78d7f720a4e8b46d8/html5/thumbnails/4.jpg)
Compression
Piston moves upward
Intake valve closed
Air-fuel mixture is compressed
![Page 5: Engine operaion](https://reader033.vdocuments.mx/reader033/viewer/2022061104/5412d0c78d7f720a4e8b46d8/html5/thumbnails/5.jpg)
Power
Spark plug fires
Ignition proceeds
Piston is forced down
![Page 6: Engine operaion](https://reader033.vdocuments.mx/reader033/viewer/2022061104/5412d0c78d7f720a4e8b46d8/html5/thumbnails/6.jpg)
Exhaust Exhaust valve opens
Piston moves upward
Spent gas pushed into exhaust system
![Page 7: Engine operaion](https://reader033.vdocuments.mx/reader033/viewer/2022061104/5412d0c78d7f720a4e8b46d8/html5/thumbnails/7.jpg)
Diagnosis
Three vital systems to establish a diagnostic routine for the engine.
Fuel
Compression or Air
Ignition or Fire
![Page 8: Engine operaion](https://reader033.vdocuments.mx/reader033/viewer/2022061104/5412d0c78d7f720a4e8b46d8/html5/thumbnails/8.jpg)
Fuel system diagnosis
Is there gas in the tank?
Is there gas to the intake manifold?
Filters?
Pressure test?
![Page 9: Engine operaion](https://reader033.vdocuments.mx/reader033/viewer/2022061104/5412d0c78d7f720a4e8b46d8/html5/thumbnails/9.jpg)
Compression system
Is the air filter clean?
Is the exhaust system flowing?
Compression Test
![Page 10: Engine operaion](https://reader033.vdocuments.mx/reader033/viewer/2022061104/5412d0c78d7f720a4e8b46d8/html5/thumbnails/10.jpg)
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?