How much play should there be in the secondary throttle shaft? I was tracking down a vacuum leak and discovered that when carb cleaner was sprayed on the secondary shafts the idle sped up. There is a few thousands of horizontal movement on the shaft. I realize that there is no way to totally seal the shaft but this seems excessive to me. I'm not sure if it's always been this way or not. The original leak was a warped carb spacer. Any thoughts?

Durham Missouri