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					Originally Posted by  j.fro
					 
				 
				Remember to flush the coolant in both directions. And when you think you've flushed it enough, do it one more time. Cracked heads are a ********************. 
			
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Good Luck on that!  When my WP went, I had maybe 1/3 of the surface area of the blades shear off.  I flushed and flushed, running everything through a big sieve I picked up somewhere or other.  Never recovered a single piece.  The good news: that was several years ago--not a problem has surfaced since, cracked head or otherwise.  Do what you can, then drive it!