I pulled the valve cover off last night to look for any real obvious damage. Everything looked good. However the only parts that was shiny was the cam lobes. Eveything else was coated with a real heavy brownish/redish coat of varnish. Did not look like varnish that i have seen in other engines. Not a bit of sludge or visible contanimants. Wanted to pull the head but did not have the 12 torque tip.
1987 190 Euro