We have had a number of requests for more information on the Reason, Cause and Solution to the "Slipping Cone Clutch" problem on the SD40
and SD50 Yanmar
Here is the link to the YouTube Video that we recently made https://youtu.be/ov1c6E3lcAM
In the Video we also discuss the Vent System, and the Dual Lip Oil/Shaft Seals
on the Lower Gearbox
. It is not related to the "slipping" problem, but it is an improvement to the Saildrive
I hope it all makes sense!!