Lego engine goes boom!
These Lego engines are really cool, but you wouldn’t think it could take much before catastrophic failure but these take a lot! They hook up an electric motor to the crank of the lego motor and get it started by hand but after that, it’s all up to the electric motor. Maybe if they had lubed the engines some how they would have lasted longer. They also look really off balance so all of that together makes for an aggressive engine failure!