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			#1  
			
			
			
			
			
		 
		
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			added some new pics to gallery,
		 
		
		
		
		
		
		
			
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	there are some things you learn best in calm and some in storm and some not at all  | 
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			#2  
			
			
			
			
			
		 
		
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			Edge of that piston was rough...did carbon deposits knock that off or did it just fail over time?...we gonna see pics goin' back in?... :D...
		 
		
		
		
		
		
		
			
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	'74 V-20/ BF 150 '95 V-21/ BF 150 '84 V-20/ 200 2.4 Merc '87 V-20/'18 F150 Yamaha  | 
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			#3  
			
			
			
			
			
		 
		
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			I think it was the wrong plugs before i started the motor i changed the plugs the ones i took out where 5 heat ranges to high
		 
		
		
		
		
		
		
			
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	there are some things you learn best in calm and some in storm and some not at all  | 
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			#4  
			
			
			
			
			
		 
		
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			That shouldn't hurt the motor if it's running slightly rich. We use to run the hottest plugs avail in our race engines and in my street cars. Also my jet ski's i run the hottest plug avail too.
		 
		
		
		
		
		
		
			
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	1978 V20 Cuddy w/ 225 Johnson. And Several other boat's  | 
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			#5  
			
			
			
			
			
		 
		
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			then i just dont know, i looked at it close today it looks like it just flaked apart down to the top ring and the piston moves back and forth in the bore about an 1/8 inch using my finger 
		 
		
		
		
		
		
		
			
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	there are some things you learn best in calm and some in storm and some not at all  | 
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			#6  
			
			
			
			
			
		 
		
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			sounds like it may have been put up warm at some point in the fall or winter and that it made condensation when the cold night came. Then the moisture froze over the winter around the upper ring. That I have seen and it will cause the top of a piston to crack then when the motor is run and gets warm it starts to flake apart. 
		
		
		
		
		
		
			Just my .02 worth of thoughts. Who Knows 
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	1978 V20 Cuddy w/ 225 Johnson. And Several other boat's  | 
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			#7  
			
			
			
			
			
		 
		
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			makes sence
		 
		
		
		
		
		
		
			
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	there are some things you learn best in calm and some in storm and some not at all  | 
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			#8  
			
			
			
			
			
		 
		
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			it almost looks like some one droped a nut into her the head is digned up to i will never know , but i want too
		 
		
		
		
		
		
		
			
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	there are some things you learn best in calm and some in storm and some not at all  | 
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			#9  
			
			
			
			
			
		 
		
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			once the piston cracked up it would have been on top and would have hit the head and the valves.
		 
		
		
		
		
		
		
			
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	1978 V20 Cuddy w/ 225 Johnson. And Several other boat's  | 
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			#10  
			
			
			
			
			
		 
		
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			yes you are right but alum do the damage to the head i got some heavy nicks in that cast iron head ill post pic this week
		 
		
		
		
		
		
		
			
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	there are some things you learn best in calm and some in storm and some not at all  | 
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