the motormeter type temperature gauge is not intended to be sensing the coolant, the intention is to sense the air over the coolant--and to react to the first beginnings of steam before full boil is reached----
I wondered why the probe wasn't in the coolant.
Hallo und guten Abend.
I have a note about the quail thermometer insert. After about a year of sunshine, the original red display line has faded more and more and is now barely visible. Obviously, the coloring of the liquid advertising line is not lightfast.
Too bad, the display works, but it is not recognizable.