In the process of troubleshooting why my 1979 Evinrude 70 doesn't have water coming out of the telltale I pulled the thermostat cover and noticed that the thermostat was missing..and it has a lot of gunk in there. Any reason why someone removed the thermostat? Is that supposed to keep the engine cooler? Oh and the lack of water from the telltale could totally be me just messing up the impeller install I just did but not sure yet.