The Ford Barn - Rocket Science Behind Engine Balancing

https://www.youtube.com/watch?v=yRWL9czmk_E
https://www.youtube.com/watch?v=9Bdc...ature=youtu.be
https://www.youtube.com/watch?v=_TssXF8yQek
https://www.youtube.com/watch?v=gdHQ8aTfiQQ

The first link leads to a discussion of inline 4 cylinder engines as in the Model T, Model A and Model B Fords. One of the links explains the flat plane crankshaft as in the new Mustang GT350 5.2L engine.

Listen to what the engineer is saying, and watch the videos more than once to get the jist of the science.