Originally posted by lt1s10
urotu, if you have the throw out bearing adj. properly it wouldn't be turning at all in neutral, that's based on a few 100 clutch and pp installations ive done over the years.
lt1s10 based on the few 100 clutches I have done over the years, including mediu and heavy duty I can tell you from experience that a throw out bearing can and will make noise in nuetral, in gear, with the clutch in, with the clutch out, you name it. Just because the transmissio is not in gear does not mean that the clutch parts quit working. The clutch plates are what engage and disengage to make your car move. Now, in theory, you are correct, if the bearing is in adjustment it should not be turning, in my experience there are very few people who adjust there clutches properly, especially since the introduction of the hydraulic clutch and most folks don't have to worry about it anymore, so most folks don't know how to adjust a manual clutch anymore, much less a throwout bearing. Now all this being said, what do you think the clutch parts do when you engage and disengage the clutch with the car in nuetral, they do exactly the same thing that they do when you have it in gear. So this being said, you bet the throwout bearings can and will make noise in nuetral.

I'm sorry If I made a quick diagnosis that you didn't like, but was making an online diagnosis based on the little info that was provided, just like you. This sounded like one of the more reasonable things to look at. I never asked if the noise changes with the rpm of the engine, does it?