Quote:
Originally Posted by mnez
I had an instance in one of my other cars where loosening the bleeder screw too far apparantly allowed air to be sucked past the threads and come down the tube as bubbles. Closing the screw a little eliminated the air bubbles. Opening a bit more caused the bubbles to reappear. I don't really understand it, just my observation.
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Or using a bit of grease or petroleum jelly around the threads minimizes the re-introduction of air at the nipple . . .