So here is a video that captures this "grinding/grating" noise coming from my E33. It happens reproducibly from the same areas of the track. Anyone know what this might be? Note: There is only one lead from the transformer to the FT, not sure if that's a problem or not. The noise can be heard around seconds 39, 46, and most notably at 1:03.
Fingers crossed that it's nothing serious. Please help.