Re: Mercury 9.9 Lower Unit disassembly

[billw]

I did one of those years ago….As I remember, the entire bearing carrier unscrews. Normal thread direction. You do need a tool; but I made one from a piece of pipe, because I didn’t have time to wait for a tool to arrive. In the carrier, behind the seal, is a prop shaft bushing. Make sure it’s not worn out, before you take it apart, by attempting to move the prop shaft up, down and side-to-side. If it’s worn, your new seal won’t do you much good.

Long live American manufacturing!