The wristpin let go, that's why the engine stopped running, and when tearing the engine down I also noticed the cams were bad and the crankbearing was bad...
But I'll have the engine ready next weekend and then there will be another updated Cannondale riding around in Europe.
So far I have updated/rebuild 4 complete quads for customers, and a X440S. One of them allready has 50 hours (has an hour meter).