Engine temperature monitor

[BioniC187]

Hey okes,
can someone direct me to a page that i can use to determine what thermistor(partl number) to get for the cylinder of my car? i want to monitor the temp on my own, i just don't know what model thermistor to get. Or if someone can recomend a part that will have the range necessary for a cylinder head.
Thanks

 

[More Coffee]

generally the engine shouldn't go over 180F ,or 82C..So if you get a thermistor it should be in the 212F or 100C range..

As for a part number unless you know what type of meter your using it could be a 101-104 or a temp sensor LM335/LM35 or a DS18B20

there's no point getting a sender unit or making one unless you know what and how the sender interface's with the meter.

And if your measuring cylinder temp at the exhaust manifold you need a pyrometer..a little different 400-800deg C

 

[BioniC187]

It will only be on my cylinder head How strong is the package? Asking coz i wanna know how to mount it? could i use pratley steel, and just stick it on?

 

[dr pepper]

An lm35 would be a sensible choice, its not a thermistor it provides a volatge out per degrees c, an op amp and a lcd/panel meter would do the trick, you could epoxy it into a crimp lug terminal and screw it to summat.
You can get proper bolt on sensors for the job, primarily intended for air cooled bike engines that often dont come with a temp guage.

 

[picbits]

generally the engine shouldn't go over 180F ,or 82C..So if you get a thermistor it should be in the 212F or 100C range..

As for a part number unless you know what type of meter your using it could be a 101-104 or a temp sensor LM335/LM35 or a DS18B20

there's no point getting a sender unit or making one unless you know what and how the sender interface's with the meter.

And if your measuring cylinder temp at the exhaust manifold you need a pyrometer..a little different 400-800deg C

My 2000 Astra runs at between 80 degrees C and 95 degrees C.
My 2012 VW Golf GT TDI runs and is maintained at a constant 90 degrees C with the engine oil running at between 80 and 120 degrees C.

 

[RCinFLA]

There are plenty of auto thermistor sending units. They are carbon based thermistor, each specific to a model car and its gauge. They are usually pretty rugged and take pretty high pressure.

If you can take a bolt that matches the thread size of your car you might be able to get an autoparts store to search for several that fit. You can independently calibrate a given thermistor with cooking oil on the stove, with an accurate thermometer and ohm meter. You should calibrate it from room temp to about 260 degrees F.

I did this exact thing for thermistors I used in a solar hot water heater.

 

[Jaguarjoe]

If he's gonna measure cylinder head temperature (CHT), it will be a lot warmer than the coolant temperature. CHT gauges are readily available with giant ring terminal sensors. I'm sure the thermocouple and it's mount are available separately. I don't know if a thermistor will work well or not. CHT displays are common on propeller (piston) planes.

Automotive sensors are not known for their accuracy. They are cheap though.

 

[Jaguarjoe]

If he's gonna measure cylinder head temperature (CHT), it will be a lot warmer than the coolant temperature. CHT gauges are readily available with giant ring terminal sensors made to mount under a cylinder head bolt. I'm sure the thermocouple and it's mount are available separately. I don't know if a thermistor will work well or not. CHT displays are common on propeller (piston) planes.

Automotive sensors are not known for their accuracy. They are cheap though.