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So called 'laser' devices may well have a small red spot to show where =
it is pointing, but the measurement area is much wider than that as the =
sensed area is cone-shaped i.e. it gets wider the further out you go in =
some case by as much as 2:1. The smaller the physical object that you =
want to measure the closer you have to be or it averages cooler areas =
around it. Yes I know an engine is pretty big, but it isn't all at the =
same temperature. For the thermostat elbow for example it has to be =
almost touching.
More for running hot than anything else but yes measuring various areas =
over the surface of the rad will show up problems with flow rate, =
partially blocked core where the cause is insufficient cooling, or that =
the engine is producing more than it should.
----- Original Message -----=20
There are two methods I have used.
...
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<DIV><FONT size=3D2>So called 'laser' devices may well have a small red =
spot to=20
show where it is pointing, but the measurement area is much wider than =
that as=20
the sensed area is cone-shaped i.e. it gets wider the further out you go =
in some=20
case by as much as 2:1. The smaller the physical object that you =
want to=20
measure the closer you have to be or it averages cooler areas around =
it. =20
Yes I know an engine is pretty big, but it isn't all at the same=20
temperature. For the thermostat elbow for example it has to be =
almost=20
touching.</FONT></DIV>
<DIV><FONT size=3D2></FONT> </DIV>
<DIV><FONT size=3D2>More for running hot than anything else but yes =
measuring=20
various areas over the surface of the rad will show up =
problems with flow=20
rate, partially blocked core where the cause is insufficient cooling, or =
that=20
the engine is producing more than it should.</FONT></DIV>
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style=3D"BORDER-LEFT: #000000 2px solid; PADDING-LEFT: 5px; =
PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px">
<DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
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size=3D2></FONT><FONT=20
size=3D2></FONT><BR></DIV>
<DIV dir=3Dltr></DIV>
<DIV dir=3Dltr> There are two methods I have used.</DIV>
<DIV dir=3Dltr>...</DIV></BLOCKQUOTE></BODY></HTML>
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