How dose works the engine

e Blender 3D to create these models. It's free and open source, and the community is amazing:
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Chapters
0:00 Intro
0:14 4 Stroke Cycle
1:22 Firing Order
1:36 Camshaft / Timing Belt
1:56 Crankshaft
2:15 Block / Heads
2:35 V6 / V8
3:02 Air Intake
3:25 Fuel
3:54 Cooling
5:02 Electrical
6:06 Oil
7:03 Exhaust