Long story short my new to me -6 with 0-320-d1a started developing a fairly significant oil leak over the 40-30 hrs. It’s coming from the lower portion of the backside accessory case. Not sure what it is exactly but it seems to be a block off plate with too many washers stacked on top. I snugged the nuts up (as two of the nuts were barely finger tight) and the leaking stop almost completely for the last 10 hrs, but there is still a slight seepage so I do need to replace the gasket and torque it all back down properly. Anybody know the exact torque values of these nuts and where I might find a gasket without ordering a full engine rebuilt kit? I’ve googled but it wasn’t much help.