Just thought I would mention something I do every season as part of my preventative maintenance on my outboard. Last week I removed the prop and inspected the prop shaft for fishing line, trot line, etc. I cleaned everything up and applied new grease to the prop shaft before installing the prop. I didn't find any line wrapped around the shaft which could tear the seal and allow water into the lower unit. But I did notice light surface rust on the prop shaft due to being in brackish river water. I was able to clean the surface to look like new and now have the peace of mind of knowing everything is good. Also, I know I can remove the prop if needed, because sometimes you can't easily remove the prop if it hasn't been removed in years.