Cylinder Head Temperature Sensor, 0 280 130 017 Readings Options

[dlee6204]

I recently acquired a NOS temperature sensor for the one year only '73 Djet system 0 280 130 017. This sensor has been NLA for a very long time and finding a used one is very difficult. Given the rarity there isn't a lot of information on the proper resistance values of this sensor. Pbanders (https://members.rennlist.com/pbanders/DJetParts.htm) lists three data points for the resistance of this sensor but I thought I would post my findings. I also listed the values of the aftermarket sensor 0 280 130 012 available from 914Rubber.





@Superhawk996 This answers some of your concerns.

[nordfisch]

Hi,
I really appreciate your work and started to transfer the 'Fahrenheit' into 'Celsius'-readings for a documentation.

I realized these readings do end below the temperature of boiling water - this isn't realistic for the operating temperature of an aircooled engine that should be at about 120°C - 250°F.

Following a German aircooled-forum, the critical temperature at the cylinder head is much higher - about 250°C - 480°F.

Could you please add some readings at higher temperature? You could use engine oil - I used vegetable oil for testings before but I don't own the 914-sensors.

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Yes, the values of the sensors differ - but like superhawk996 wrote before, this will mostly affect the warming-up sequence. It would be interesting to know the values at a fully-warmed-up engine. Maybe there isn't any difference - and this is the point that matters.
D-Jet cars run quite rich in warming up, therefore the replacement-sensor could even be the better choice.

Best Regards
Norbert