Animation made sketchyphysics. To view the crankshaft and connecting rods open the layers menu and hide the block layer.
STL (Stereolithography, filesize: 815 KB), OBJ (OBJ, filesize: 853 KB), 3DS (3D Studio, filesize: 787 KB), FBX (Autodesk FBX, filesize: 1.07 MB), IGE (IGES, filesize: 299 Bytes), MAX (Autodesk 3ds Max, filesize: 1.09 MB), SKP (Sketchup, filesize: 1.25 MB), OTHER (Other, filesize: 690 KB)