Temperature probe into coolant water
Measure the coolant temperature
PROs
-Is the choosen way for every car manufacturers to sense the engine temperature.
-Is the most easy installation
-The human eye is more used to read the behavior of this temperature.
Cons
-When ther are a coolant leak, is possible that you overheat the engine and do not see it.
Placement
C=Termic isolator ( polyuretane foam, expanded polystyrene, eva rubber)
B=Probe
A=cylinder cup or coolan pipe
Cautions to be taken for this type of installation
-DO NOT OPEN THE WATER CIRCUIT, will broke the Pressurization
-DO NOT remove any original sensor of vehicle
-The probe work by temperature transfer, so ensure that the proble touch one place with high water flow
-Avoid that the probe will be cooled by wind.
-The probe is made of glass, do not pressure it, hit it, or twist it.
-La sonda es de cristal, no le haga presión, no la golpee, ni la retuerza.
-The probe must touch the hot place, if simply is close do not work
-The probe must be placed the most close to water output in the cylinder cover.
-Ensure the maximun contact surface between probe and hot place
One way to install the probe is to support it against a high flow hose and fix it with 5 or 6 turns of fabric insulating tape.
The tape will prevent air from leaking, it will retain it and, being of fabric, it will not stretch.
You can also use other fixation methods and add a seal with moderate pressure.
