The exhaust also contains what looks like soot/oil in the vapor drops. Yup...I am imaging valves - visually checked the head gasket and found some oil/dirt on an otherwise clean valve cover.
So, I am considering buying a rebuilt engine of same type. Anything to look out for? You know, the questions I don't yet know to ask! Thanks for any guidance.
![Shrug :shrug:](./images/smilies/shrug.gif)