[Russell Reay]

Originally Posted by alexiskai

A number of owners report that their engine never gets above 160° while running, and a larger number report that it takes a long time to reach operating temperature. This can happen if you've replaced the radiator with a robust modern unit. To operate at peak efficiency, the engine should be around 185°, +/- 5. The thermostat helps the engine get there and stay there.

Good information--thanks