1100 oil temp warning light?

[gsryder]

I have a 81 1100 engine that has the oil temp sensor on the back side of the oil pressure sensor cap. I just have the engine so I do not know what gauges it came with originally.

I would like to use the oil temp sensor but just for a high temp warning light (idiot light).

Did the factory sensors come only for a temperature gauge?

Could you use the factory sensor and hook it up to a simple idiot light?

If so how do you know what temp the light or sensor will come on?

I would like to just put a simple red dot light in the head light bucket if for nothing else just as a warning to say OH my oil temp is at 300....or whatever.

Can I do this with OEM stuff or do I need to modify a temp sensor into the factory cap and a after market light etc.

Thanks

[Nessism]

The factory sensor is a simple device that changes resistance with temperature. I have no idea how a variable resistor like that can be converted into trigger a light.

[posplayr]

The factory sensor is a simple device that changes resistance with temperature. I have no idea how a variable resistor like that can be converted into trigger a light.

a comparator circuit

<H2>Comparator Operation

The following drawing show the two simplest configurations for voltage comparators. The diagrams below the circuits give the output results in a graphical form.
For these circuits the REFERENCE voltage is fixed at one-half of the supply voltage while the INPUT voltage is variable from zero to the supply voltage.

In theory the REFERENCE and INPUT voltages can be anywhere between zero and the supply voltage but there are practical limitations on the actual range depending on the particular device used.

</H2>

http://home.cogeco.ca/~rpaisley4/Comparators.html