Hello, I made you a part of a car engine, which includes connecting rods, crankshafts, pistons, and all axes. It took me a long time to make, but unfortunately the animation does not work properly from the beginning to the end, I'm back problem, I do not. So here is nevertheless scene complete with textures, lighting, and of course the engine. If you find out why the animation is not working properly, thank you to share it to everyone and myself that I arrangeras lot too. Have fun.