Not sure how to get this nut off the cranks shaft. Im not sure if it has reverse threads or a locking thing but I tried any way. Dont wanna break it. Tried taking it off with a heavy duty impact going counter clock wise. Also I just need to clean the engine a reasseble it and if I can clean it as is that would be a life saver. I dont own any special cleaning machines asides from a pressure washer but Ill buy someting if that saves me a lot of time. Thanks in advance.