A "Donk" is a slang term for Engine...

Once upon a time,,, way way back,,, in the good old days, they used donkeys to walk around & around in circles hooked up to a pulley thing-a-me-jig,,,, to wind up a big engine to get her started,,, so it really stems from way beack then & was called a "Donkey Engine",,, basically was just a power source to start up an even bigger power source,,, they then had made small piston engines to start up those big engines & hence was affectionately called a donkey engine in the donkeys honour/memory,,, then shortened the term to just plain simply "DONK"

true story

next lesson on the history of the internal combustion engine at 3.25pm tomorrow,,, anyone late to class will have to sit at the back of the room ,,, & please,,, no spit balls or fart noises this time ok???

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No offence intended here but--> anyone writing a book about minis 30 years ago may not have experienced such worn or stuffed-with components as we are finding these days.

You should put your heart & soul into everything you do.