Lego engine models

Here is a collection of non-motorized Lego engine showcase models with moving crankshaft and pistons. These models are my own original designs based on historical engines. Each one features a hand-turned knob to rotate the crankshaft and move the pistons. Parts lists and instructions are included below. V8: 8-cylinder V-engine The V8 is a good model to begin with. It is simple to build and operates smoothly. In the real world, this layout has powered everything from cars and motorcycles to airplanes and speedboats. The Lego model features a flat-plane crankshaft and a wide 110-degree V-angle. Download partlist.csv, partlist.xml, instructions.pdf, model.io U12: Twin-straight-6 U-engine The U12 is an unusual engine that was used in the GM 6046 for Sherman M4A2 tanks. It combines two Straight-6 engines into one. The Lego model replicates the essence of the real thing, but with a few differences. The original GM 6046 used three-throw crankshafts, while this model utilizes simpler…