Quote:
Originally Posted by History
With that said,,, does the moto meter use the steam from the coolant or ambient heat in the radiator? Sloshing water up on it? Last seems silly but I have no idea.
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The motometer does read the steam or air temp in the radiator. I think it has been said here that the lag time can be as much as 5 minutes between the actual coolant temp and the temp reported on the meter. I do tend to notice mine heats up after I finish climbing a hill.
Back when I had the old engine with a very leaky head gasket I would lose about a gallon of water and the meter would spike quickly.