So I was attempting to reinstall the large rubber block in the front of the engine and had to remove the TB for room. I discovered that last time I reinstalled the tube on the TB I folded the bottom of the gasket over toward the inside while pressing it onto the TB. Then it was clamped down tight. I did not see any dirt inside, but there was definitely oil from the PCV in there on the butterfly valve and it was clean. So the big question is: should I be worried? I plan on removing the entire manifold early this week to spray it out with denatured alcohol and see if any grit comes out in a jar I will drain into. Hopefully there is none. Anything else I should look at while I am in there? Should I be worried? The clamp was not wimpy-tight and the rubber seems to still be in good shape. It went back on OK, but I have been running half the summer like that... Maybe 3k miles.