4 Cycle Engine Transparency

Turning the pin on this transparency will rotate the crankshaft. Students will see how the intake, compression, combustion and exhaust processes all make the engine work properly.

On average, the engine rotates one thousand times each minute, generating a tremendous amount of heat and friction. At the same time oil cools, cleans and helps to seal the combustion chambers. Use the relief valve and bypass valve to understand the cooling device.