Just in case anyone is interested in what the oil looks like in a poorly
maintained '85 Westy with 140k miles after 2000 miles:
http://imgur.com/HLX3OUK

Good news is no coolant (probably)!  Bad news-lots of iron, lead and
aluminum.  No surprise with the low compression in two cylinders.  Iron
could be from a worn cam and lifters as well as cylinders and rings.  I'll
install an oil pressure gauge next to see how bad the bearings are.  Still
hope to get 3000 miles out of it this summer.

Stuart