Hey all, I noticed a peculiar vibrating/shearing sound when the engine idles down. It's sort of a "wuuunngg *gjggj* brbrbrbrbr" sound (if that makes any sense). I've heard about the noisy crank noise that was topic of discussion in the original magazine reviews of the 3rd gen CRs, and I've also read about the tin foil crank coating shedding on the 02-04 models. It sounds like it could be either of those two options, a ring that is moving irregularly or a clutch plate that broke. It's just odd because I don't hear it any other time than when the idle drops back down. I did switch from Bel Ray H1R to Maxima 927 recently, as well as moved the clip to the second spot from the top on the JD red needle, which saw dramatic performance increases across the entire throttle range. I'm starting this thread because I want to know if any others have some experience or insight that can rule out a few of the possibilities or point me in the right direction. I've been a little busy/preoccupied so I haven't pulled any covers off or anything thus far. It still runs strong, but the noise makes me feel as though I'm playing with fire. All components are relatively new except for the bottom end.