When assembling the crankcase, a liquid gasket is used for sealing. Around the threaded rods, with which the two crankcase halves are mounted, there is an additional seal in the form of O-rings.
These O-rings are located between the crankcase halves, not to be confused with the outside of the crankcase. Under the rings on the outside of the crankcase, only a liquid seal is used.
Useful information from Paruzzi magazine and from our YouTube channel :
Look for more technical articles on the page Paruzzi Magazine