you can get a tool to remove it from autozone for about $5 or the trick i used was take an old rag and place it in the middle of the crank and the plastic washer and move it back and forth while pulling up on it. The rag should snag and clip and pop it out enough to get a flat head screwdriver in to remove it the rest of the way
once you can get the flat head in is it jus a matter of forcin it out? i already managed to break the plastic washer (oh well) on my own attempt to get it out.... dont wanna break the crank . any more advice??