Hello,
Thanks for the replies and the tips. The original gasket was broken, you could see it on the outside. Reason, most of the nuts on the top of the cover where all loose. Is there any type of loctite you recommend, or just the blue one ;-)
I have just reveived this morning all the parts from hmb guzzi, I will use the metal gasket. It Is going to be a busy weekend for me !!