Really smart screensaver. Got this from a mate at work then searched for it on the net for you lot, see text below.
Animated engine build. Shame there's no gearbox or turbo but still feckin brilliant. Enjoy.
Deutz Engine Screensaver:
http://www.motordiagnostics.com/downloads/deutz.exe
Animated Screensaver of a four cylinder engine assembling itself then running showing the combustion cycle. (Windows NT, 2000 or XP only, recommend 512MB RAM) Important - This is a 42.3MB file (your download may time out). When you are asked to open or save, select save and a location that you can find on your drive. It is an executable zip file (you do not need a zip software). Go to where you have saved the file and double-click on it to unzip. The default folder is c:/Temp for all of the files. Go to where you unzipped the files and open 'readme.txt' for installation instructions.