1968 20hp lower unit seals

[Arronh]

Hello. I’m in the process of restoring a 68 mercury 20hp. The lower seals need to be replaced. I’m having a tough time finding instructional videos. Does anyone have a good resource? I’ve done similarly-sized Johnsons from roughly the same time period. Am I going to run into any appreciably different?

Thank you

 

[merc850]

A manual would help but in lieu of one I'm posting some starter pages: (before you start soak the cover nut area with a penetrating oil for a few days too loosen it up.)