After changing oil and replacing all filters at end of season, I ran my three-season-old Beta 38 one last time. Looking at the serpentine belt, I am a bit concerned that it is moving too much even though the tension feels right when the engine is stopped. Video is too large to upload here directly, but this OneDrive link (https://1drv.ms/v/s!AmSfPXGDUqHygrUjlASOr_L5wIeDBg) should give a video showing the belt movement.
Does the movement in my belt, particularly in the lower two sections of it, look excessive? For whatever reason, the section between the coolant pump and alternator remains pretty steady while the sections to and from the bottom main pulley are moving quite a bit.
In adjusting belt tension, what "under heavy thumb pressure" deflection should I aim for, and measured at which point?
