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Lesson 5: The Internal Combustion Engine & Engine OilJeff Crawford

Crawford’s Auto Repair

The Internal Combustion Engine

The Otto Cycle of Events◦Intake◦Compression◦Combustion◦Exhaust

The Internal Combustion Engine

C:CrankshaftE: Exhaust

CamshaftI: Inlet CamshaftP: PistonR: Connecting

RodS: Spark PlugV:Valves

◦ red: exhaust◦blue: intake

W:Cooling Water Duct

The Internal Combustion Engine

Connecting Rods and Camshaft Rotate and provide input to the transmission, then to the drive train, then to the wheels (later lesson)

Animation at: http://commons.wikimedia.org/wiki/File:Cshaft.gif

The Internal Combustion Engine

Watch Video of Otto Cycle: http://www.youtube.com/watch?v=6qHherIwsTE

The Internal Combustion Engine

http://youtu.be/Onqi9iRpFYE

The Internal Combustion Engine

This lesson is important to know for the following four lessons:◦The Cooling System◦The Fuel System◦The Electrical System◦The Drivetrain

Engine Oil

API CodeSAE

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