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				Originally posted by grant66  
I appreciate your replies.  For some reason I can't find the nipple.  I will check it out to night with better light.   
 
84LX89GT is probably correct.  That is what I have heard about the spacer.  I have really cold winters so, it is especially important. 
			
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 Im not so sure I buy into the "help warm the engine in the winter" theory. After all, if the coolant is warm, so is the engine.