The flywheel woodruff key was worn level with the crank on my 1961 Johnson RDSL-23 40HP.<br /><br />I replaced it with a new 5/32" by 5/8" key, which was the closest matching size I could find.<br /><br />I had to do some filing on the 5/32" by 5/8" key to make it fit.<br /><br />Does anyone know the woodruff key size that should fit without modification?