I currently have my timing belt off, and my original plan was to pull the oil pump to replace the seals. Anyone have any tips or a good procedure for removing the crank sprocket? The only information I've seen on this is a video where the guy heated up the crank sprocket to pull it off. Is this generally how it is done? I was thinking I might try to use a puller tool, but I don't think I can get hooks around the back of the part to pull.