Today, I made a four cylinder diesel engine out of Lego that runs off the suction of a vacuum. To make it, I had to take apart my old two-cylinder engine. I made it because my old engine, although fast, wasn’t as cool as a bigger engine. This new diesel engine is slow but works better, and I can add more stuff because it’s bigger. I made the engine run with the suction from a vacuum cleaner that connects via the port on top of the engine.
To upgrade this engine, I am going to add a throttle and stabilize the flywheel. The throttle is going to go on the port on top of the engine where the vacuum connects. Throttles work by limiting or raising the suction going to the pistons.
I am also going to add an oil pan, which will also raise the engine up so that the flywheel doesn’t touch the ground.
The Costume Kid 