So, as you may have seen from a previous post that I decided to fly before painting. For the most part I'm happy with that decision except I carried that thought a little too far. I primered nothing and now I have a bottom cowl that is quickly accumulating some oil around the exit area. I need to clean it up and want to primer it. The oil and other gunk seems to have really gotten into the fiberglass, especially the pin holes. Any advice on how to remedy that and prepare it for primer? Live and learn...