u/blakejames41

I’m having a hard time finding the parts I don’t know where to look if anyone finds this gasket kit it would be greatly appreciated.

I have a 1980s 20hp mercury outboard that has been sitting for awhile and I have taken it out a few times this year. I went to change the lower unit oil and this is what I have but it doesn’t seem to be leaking out of the prop. But there still seems like some contamination. Is this normal or should I dive deeper into the lower unit? Are there some internal seals that could be bad?