
 Originally Posted by 
Busted Syncro
					 
				 
				X 3 Hylomar spray. 
Copper gasket conducts heat between the head and block reducing hot spots which can cause the head to crack between cylinders 2 & 3.
Common on series 2 heads as they had a thinner casting.
Chris
			
		 
	 
 Almost certainly only on engines where the head has been skimmed. It should not be an issue, even if the head has been skimmed, on later heads (with the boss on top of the head behind the carburettor).
				
			 
			
		 
			
				
			
			
				John
JDNSW
1986 110 County 3.9 diesel
1970 2a 109 2.25 petrol
			
			
		 
	
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