[Cyruscosmo]

Hey E*clips

From what I can see in your pictures and reading your description the oil is moved via the ring gear into a chamber above the gear set. I can not clearly see the baffle line in one of the pictures but if it is there then the oil spills back into the gear area mainly through the bearings in the main/counter shaft and through the main shaft into the rotor housing for the rotor bearings and to cool the stator.

As you pointed out there is a port drilled to divert a good amount of oil into the rotor shaft. While at rest the fill plug sets the oil level in the unit giving a good indication of the amount of oil it uses. Now the way the gear set and baffles are arranged suggests that while the unit is in operation the majority of the oil resides in that chamber above.

This would make sense as the oil would cause a lot of gear drag otherwise.

Now I have a question for you. Is there a step inside of that main rotor shaft? The reason I ask is that I have had a number of triumph motorcycles over the years and some used the crank shaft as a sort of oil filter. Oil pump stage one pulled oil through a strainer screen from the engine sump and into the frame which was also the oil reservoir/cooler. Stage two pulled cool oil out of the frame and pushed it into the crankshaft. The crankshaft acted as a fine particulate filter by centrifugal force. It has a stepped chamber through the crank pin which had a clean out.

I was curious to see if the main shaft had a step inside of it that they would use to capture any metallic particles before they got to the stator. The last thing you want in there is metallic hair between the rotor and stator.

Anyway I think the oil should be removed from that chamber where most of it is during operation and pumped back into the system at the port where it goes into the main shaft.

What are your thoughts?

Cyruscosmo