Boy there sure is a lot of confusion here, and I'll probably be adding to it but here goes. Correct me if I'm wrong. First refer to the excellent writeup and pictures presented by Q8 on 8-2-14. I believe the orange knob is the vent. On the back of the BB the upper Allen is the level plug an the lower hex is the drain plug. Q8 used the vent plug hole to fill the BB until it ran out the level (Allen) plug hole. I hope I'm right here because I'm in the process of changing the oil right now. Please anybody let me know if I'm off track here?
