Originally posted by Ebster1085
Dave, correct me if I'm wrong, but the chattering noises related to a throwout bearing only occur when the clutch pedal is NOT pressed. Usually the easiest way to determine if it is the throwout bearing is when the car is idling in neutral it will make the rattling/chatter noise, but as soon as the pedal is pressed it will go away. Maybe I misread the posts above, but it sounds like when he has the pedal pressed in while in neutral or during shifting, the noise is the loudest...

This is what what happening when my TOB went bad, noise when the pedal was out.

If the flywheel bolts are loose it will sound like the engine is knocking. Believe me Ive had that scare before...