Open Crank Farm Engine

An engine by Mick Cherry. The open crank farm engine was made after I had purchased a new lathe. I thought I would build something simple just to iron out any problems.

The outcome is a terrific little engine, dead simple to make, the main frame is all made from 1/4 ally sheet screwed together. The only tricky bit was the inlet valve, it’s the automatic type, and with it being a relatively slow running engine I had to get the spring strong enough to snap the valve shut, but weak enough for the piston to suck it open to allow fuel in.


About Nigel 192 Articles
Have been making models since I was around 7 years old and using a lathe from the age of 11, a self taught engineer with a passion for making model engines.

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