Forgive me if this has been posted before....but I think it will be appreciated by Mazda enthusiats!
https://www.youtube.com/watch?v=yNnvOy8ns44&t=720s
https://www.youtube.com/watch?v=yNnvOy8ns44&t=720s
That engine production line is scary complicated.
That part of the engine assembly line is at the end. Before that it is almost entirely automated. The casting and honing and such are all done by robots and machines. Humans install the valves and cover, and add-ons.
Thanks for sharing! Good video... That museum is definitely on my bucket list.