For those inspecting engines by pulling rods or main caps: finding a copper layer is noteworthy, but it only happens with tri-metal bearings. There are also bi-metal bearings in common use which do not use a distinctive copper flash-coat. With these, you need some experience and common sense in evaluating damage. And a set of micrometers!
PANTERA INTERNATIONAL
A DE TOMASO CAR CLUB
Presents the De Tomaso Forums
The On-Line Meeting Place for De Tomaso Owners and Enthusiasts From Around the World
Clicking on the banner will take you to the sponsor's website.