Hoping someone can verify whether this much play is normal. See video. I have been hearing a worsening fluttery high pitch metallic rattle for over a year now. It started to only be noticeable at 3k rpms, now it is widening it's range. I had her up on the QuickJack today and was doing my best impression of Chuck Norris's palm thrusts all over. Nothing loose enough for me to hear rattle... Then I figured I would remove the AC belt to see if the ticking went away and had to remove the intake tube to get at the belt tensioner (what a PITA...). While it was off, I poked the butterfly open to look for signs of oil and may have accidentally found what I was looking for! Fingers crossed that someone can do a quick check for me and confirm it needs replacement. Not the cheapest thing to replace, but if it ends the noise I will be overjoyed.