Jaap, What I first look for is any signs of water that has gotten into the oil. The look if it's been there looks like a oily wet foamy substance, then I would compair the plugs and see if they all look about the same. ( The tips ) There is a chart on the web site. Then I would run the car and see how fast it heats up and turns on the fans. If it doesn't turn them on just above the second mark, the there maybe be a problem. John Hervey www.specialTauto.com << I'm going to look at a DeLorean I'm interested in buying next week (for the second time). But as far as I could see the previous time, there are no updates done on the car, because there are no red dots and more importantly the original fan fail module is still in place. Now I'm worried there might be some engine damage, as a result from this (overheating). The car hasn't run much, just 24k miles in the Dutch climate (fairly cool), but still.... Is there a simple way to find out if there might be engine damage? How can I go about this? And maybe you have more tips and things to check when buying a car like this. Any advice will be greatly appreciated! Thanks! Jaap van den Bosch The Netherlands (maybe #02371) >>