Unidentified part on a 617 engine

Can someone please tell me what this is?

I am talking about the "sensor"? to the right of the oil dip stick and the left of the glow plug?



Thanks for looking.

This is the coolant temperature sensor.

Have a great day,

thanks Larry.

Waht I dont understand however is how come my tempreture gague is working fine if there is nothing connedted to this?

[gsxr]

It is a second temp sensor - don't know why you have two of them though. Either this was installed by mistake, or for test purposes? Who knows... very odd though...

The early serial glow plug engines had two, one for the glow plug system and one for the gauge. The parallel plugs like yours should only have one, the glow plug relay uses number one plug as its "sensor." Maybe this is an earlier engine or something.

Have a great day,

[BOGDAN]

I have the same seting on my 85 cd and when engine temp it's up the glow plug cicle time it's less

[leathermang]

No, one is wired, the other is psychic.....