Rick,<br /><br />Are you going to physically remove the VRO pump, or just disable the oil injection function?<br /><br />If you're disabling the oil injection feature, that leaves the fuel pump portion of the unit in place.<br /><br />If you disable the oil injection feature, this is why you have to check things occasionally: <br />The design of the VRO unit incorporates an air motor, in which a diaphragm is driven by crankcase pressure and vacuum pulses. The air motor is connected via a stainless steel "rod" to a diaphragm style fuel pump and to a piston style oil pump. If contaminants get into the oil side of the pump, it may "jam" the oil piston in its bore. Since all 3 sections of the pump are interconnected by a "rod", the jammed oil piston will prevent the pump from functioning at all. Make sense??<br /><br />A premix conversion kit is a replacement "fuel-only" pump. It resembles a VRO (minus the oil pump section and alarm module). It costs about $100 less than a VRO and the beauty of it is it mounts in place and utilizes most of the same hoses the VRO did. This simplifies installation and the installer doesn't have to deal with fabricating brackets and ordering pre-formed hoses to retro-fit the old "house-shaped" fuel pumps. The retro-fit route is actually a little more costly in parts and labor. The premix conversion kit is the way to go IF and when the fuel portion of the VRO ever fails.<br /><br />-John<br /><br />
