I believe some 850's (or other early models) used a water temperature sensor/sender that attached through an external water jacket with hoses attached? The sender is made by Veglia, part number 65-9612, as shown in the photos below. My question is what type of gauge did this connect to? Or more specifically, what temp range is it designed to feed on the gauge (i.e. maximum displayed temp)? Thanks. As a side question, how was it plumbed and what do the hoses connect to?