[Johnster]

Hi guys, just started up the good old beast this morning after a few months in storage and noticed this on the engine case at the rear. What’s happening and Is it time to take it in for service?

 

[SpeedyCorky]

judging by the mark/stain/oil on the right, it looks like its a leak from somewhere above, rather than a case seal leak.

have you tried cleaning it and seeing if, and how quickly it returns?