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			Turn the engine over by 22 mm wrench on the fan pulley nur.  If it turns over 2 complete crank turns without any hard resistance spots, then there is nothing loose and hitting the pistons.   
 
Let us know what you find. 
 
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Warren Hall 
1973 911S Targa 
1992 Dodge Dakota 5.2 4X4 parts hauler
		 
		
	
		
	
			
			
		
		
		
		
		
		
		
	
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