12-01-12, 01:32 PM 
		
	
	
top Dont try and remove them when they are hot you will increase the risk of stripping the threads, only when stone cold
 .  Undo them VERY slowly and apply more pen oil as they undo DONT just undo them either after a turn do them up quarter of a turn and keep doing this until they either undo or become free.Take great care or you will strip the threads in the head and then it not only gets very expensive you may well have to remove the head!!! :'(
Later
	
	

