#3055
Note the cheap way of indexing the sensor to the vane - a loose screw can result in odd readings very subtly
In my belt and suspenders world as a SLF-engine-ear - I would think a d shaped shaft or a spline and d ring assembly ( spline for location of sensor- snap or dring to keep on spline ) or similar would have long ago been used- mandated.
While I agree that looks a cheap way of indexing, I assume it's like it is so that it can be calibrated. Just looking at that grub screw makes me shudder. LockTight? I'm at a loss.