I split the case by removing the jug on the side opposite of the oil filter. I left the piston in the bore, and just disconnected the rod at the wrist pin.
Typically when the governor decides to separate, it hits a spinning crank counter weight or rod and spits the parts out the side of the block. In this case it appears it split the cam and gouged the rod end cap.
Two of mine have done it, and have heard a few more beyond that. Fortunately, I was able to replace the gear, and there wasn't any other carnage in the engine other than the broken plastic pieces and the weights.
I think I read where, after its back together, you can drill and put a Roll Pin thru it. I haven't searched for it lately but I really should look and then do it.
Drive shaft coupler off the 2082 I have an 1810 with what looks like the same engine only with a different mounting for the drive shaft can I take and swap these?