Hello Dieter, thanks for your comment in the plumbingandheatingforum. As an eager reader there, I found your comment
http://www.plumbingandheatingforum.co.uk/viewtopic.php?f=15&t=2301. And now I definitely know, what
not to do. I was so close to have my engine reconditioned, but to be sure, I googled "engineengineering" and thus found your comment above and your report. Thanks for saving money and time.
PS: hope that you will get back your engine soon and that they pay you some refund!!!!!!!!!!!!!!