I've had this knocking like noise for a few months now.whenever I am off of the clutch, it is making this knocking like sound. when I put it in gear and start driving, it sounds like that put like you are twirling a ratchet around....so a knocking ratchet I guess. when I press the clutch in all noises go away. I did the clutch and flywheel 4 years ago with an exedy stage 1 and fidanza flywheel. To me it sounds like the throw out bearing is going bad, but just need a second opinion before I start ripping stuff apart.