912ULS Oil Leak

Oil leaks are tough to track down, could be leaking elsewhere and accumulated there.

Was the engine mounting bolt 'oiled' before being inserted at some point? Could a bolt that was too long have been used and it has damaged the crankcase? I would be tempted to remove the bolt and take a look inside the threaded hole.

Thanks Sam and Kevin! I pulled the mounting bolt and peeked inside. No red flags that I could see, but I did notice a 1mm air gap between the engine mount and the engine crankcase with the bolt removed. This is the long M10x110 that goes through the engine and threads into the other side (from what I've read). Maybe oil was splashing up on it from the inside and leaking out through the gap? Either way, I fit in a washer as a shim (5 in the attached photo) and the leak seems to have stopped!

I washed the engine and after another quick run found a small leak at the magnetic plug, but after a re-torque there I seem to be completely leak free...at least for this week!

Jon