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			This is the only picture that I took of the Volvo's valve assembley. I believe the pistons in this are .550. In mine they are slightly larger at .610. 
		
		
		
		
		
		
		
		
	
	 
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			even with the poor tolerances on the Robbie valves , they don't leak . The rotor just chews up the manifold . When I get back to running steel in the mill , I'll be making 2 , 1 for the loader and 1 for the TD40 .
		 
		
		
		
		
		
		
			
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