Pulled my cam belt covers off on the weekend for a lookeesee and saw this: The idler and tensioner bearings are clean with no blue stuff on them. Everything is covered in a very fine blue dust. The blue stuff on the upper idler is stuck on good and proper, it has to be scrapped off to move it. The belt is a little tighter than I would prefer, that is all I can think that would do it. Idlers and tensioner are from CZP, and Nissan OEM from what I can recall. Cams are Ivan Tighe, springs are Performance Valvesprings and sprockets are all JUN. Anyone seen this before?