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Heater work 200 1979

posted by  Rolandp on  Mon Mar 6 19:43 CST 2023
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last visit: Wed Oct 15 17:36 CST 2014
[RELATED]

" I have a collection too, but don't know how to fix the thermostat."

Hi Art,

I can see your point. I read sometime ago that these coil thermostats were filled with wax while other people mention gas filled.

Your picture shows very well the piston actuator. I noticed in testing thermostat coils in hot water that some will respond a lot by pushing the piston out while others will barely push the piston. Showing their end of life I think.

If the coil and piston were filled with wax as an active temperature sensitive media I was thinking that flatening the end of the coil tube on a certain lenth would restore some inner pressure and make the piston move again with heat. For a while ?

I would think thermostat failure is caused by a leak ?

I suppose there is an end for everything but WE 240 owners realy like to push the finish line further ahead. And we succeed a lot. No worry about the center screen not working or lighting up, no critical computer codes that keep us from using the car, just simple problems that keep us thinking and we go on fixing it with the help of the wonderfull people on this site.

Roland






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