[blykins]

McLeod's instructions state that on mechanical actuation (linkages), there should be about 1/4" between the pressure plate and the throw out bearing face.

On cable/hydraulic setups, the bearing should lightly touch the pressure plate.

On hydraulic setups, I usually set it up so that the bearing is just a hair away from the fingers.

As I mentioned in the email, if you're able to get under the car SAFELY, see if you can pinpoint where the noise is coming from. Maybe have someone actuate the clutch while you're under there (again, SAFELY).

From my experience, bad TOB's usually sound like a whirring sound. It will go away immediately upon clutch actuation.