Posted by Vaughn on Sunday, August 02, 2009 at 21:03:25 :
In Reply to: White Smoke, grrrr posted by Tim Holloway on Sunday, August 02, 2009 at 15:48:17 :
Most likely a piece of rust or bad machine work. Biggest risk is having a piece of loose rust fall under the head when you install it. I always blow compressed air throughout the head to clear any out before installing.