Originally Posted by AdvGa
I just found I had a small Oil Leak from the Rear of the Engine and found it came from the Gear Position Sensor (Engine/ Shifting Mechanism #25, #26 per the microfiche '06 ADV) by the Red Arrow.
Hopefully the Formagasket used will do the job.
I had the exact same leak. Don't mess with Formagasket. There is no gasket between the sensor and the case, only an O-ring. You can pull the cover and very little oil will leak out. The local dealer didn't have the proper O-ring in stock so I picked one up at Ace Hardware. Seems to me the proper one is 27.5mm x 2.5mm and the one I used was 27mm x 2.5mm. So far, no leaks