[Jason in TX]

The front snout area is full of oil with a seal on the nose where the pulley is and inside on the front of the two shafts before getting into the rotor area. The back originally had seals on the two shafts, shins and greased bearings but you can put sealed bearings in them now, and keep the old look. I read one article that someone removed the grease zero side of the sealed bearings so you could grease them but the grease not go out the other side.

The gears on the rotor shafts are drilled and pinned. You have to time the rotors or they will interfere with each other.