Thank you for posting this.
I have always wanted to build model engines, and started by building Stuart models No 10 H and No 1 with reversing gear.
But what I really wanted to do, was build a scale model of an 8LB3 Gardner diesel - about 3 - 4 feet long ! Still have the desire, but not the time, skill and money !
I spent my early years ( about 1952 ) on an ex Naval pinnace ( 86 feet long ) which my Dad converted from steam to a Gardner semi-diesel ( T4 ) . Again, a beautiful piece of engineering ! Sadly, this was confiscated by the Egyptian government during the Suez Canal crisis.
There in lies a complete story in itself.
Thanks again, I really appreciate your enjoyment of engine