> I just did one yesterday. I used a 5/32" chainsaw file and worked from
> each side of the spider/crank arm junction until the sharp edge was
> flattened and the crack removed. It would have been easier using a smaller
> file and would have less risk of scratching adjacent areas. Can you please clarify? Did you leave a square edge or did you round the edge? It is my understanding that you do not want to leave a sharp edge.
Link above will take you to my efforts last night. I don't think I am done. I believe things could be smoother. But before I go much further I want to be sure I have the right idea.