how does a thermostat work... ?

[cjhill]

Dear all,

This is my new thermostat but nothing moves when i put it in hot / boiling water.

Which bit is supposed to move?? the only thing that i can move is the small pin at the top... but only 2 mm or so. doesnt seem right to me.

 

[treblesykes]

wax in center core expands when hot and opens valve against the pressure of that big spring

 

[cjhill]

thanks, i realised that i wasnt giving it enough time in the hot water, and it wasnt hot enough...

so put it in a pan on the hob and boiled it for a coupld of minutes...

that did the trick and it opened right up.

ingenious design

 

[marms]

thanks, i realised that i wasnt giving it enough time in the hot water, and it wasnt hot enough...

so put it in a pan on the hob and boiled it for a coupld of minutes...

that did the trick and it opened right up.

ingenious design

That's taking the term ' I ****** my engine' a little too far.


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