Re: Hydraulic Rams
			 
			 
			
		
		
		
			
			Thank you lil giants that's my argument with my dad, we're making a hydraulic valve for my project . I said it needs o rings on the piston, he said no it it is within .0001 it shouldn't but I still say it needs o rings. If I cut a slot in the piston and inset a o ring ,not to the od but a little larger.where the o ring has to be compressed ?
		 
		
		
		
			
		
		
		
		
		
		
		
		
	
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