Seeing one of these old motors brings back a memory of the one we had on the farm driving the shearing plant. One of the sheep dogs had taken a dislike to it and each time it was started he would race in and try to bite the flywheel once the motor started. One day the cranking pin which recesses back into the flywheel once the motor starts did not return back in and when the dog went to bite the flywheel it hit him on the nose creating a fair bit of damage and a vet bill. The dog survived but did learn his lesson just barking and growling from a safe distance for all future starts.
