Temperature switch (I think that's what's called) is Stuck!

[curtisr]

I spent the better part of the afternoon gaining access to the temperature switch in my '87 924s (radiator) only to watch it turn and torment me endlessly. Translation: it ain't comin' out.

Did I do something wrong? Is this a 'turn and twist' task? I'm just not sure what to do next so, any advice/tutorial/get-with-the-program info would be greatly appreciated.

Roger C

[v2rocket_aka944]

It's threaded in there...IIRC brass insert in the radiator plastic...if it's just turning it might be a stuck thread and the insert is spinning in the plastic...any leak?

[curtisr]

Originally Posted by v2rocket_aka944

It's threaded in there...IIRC brass insert in the radiator plastic...if it's just turning it might be a stuck thread and the insert is spinning in the plastic...any leak?

There wasn't a leak before my effort at improvement but there might be now... I drained the rad while at it all. And she's just spinnin'....

[John_AZ]

v2rocket_aka944 is correct as usual.

The coolant should be drained and I remove the 2 fans & shroud to get access to the fan switch.

You will have to check the threads on the radiator. If the threads have been cross threaded and now are shallow, you can salvage the radiator by using JB Weld on the radiator threads and the fan switch--just a thin coat. It will seal and you will still be able to remove it in the future. Use the OEM gasket.



GL
John

[curtisr]

I did not know that there was an insert. Thanks you two.

I suspect that the insert is spinning but it, at leas,t is not a wonky spin.. In the event that that is the case, any suggestions?

Roger C

[John_AZ]

I would pry up the fan switch with a thin blade and try to turn it out.

GL
John

[curtisr]

Originally Posted by John_AZ

I would pry up the fan switch with a thin blade and try to turn it out.

GL
John

Thanks, John. I'll keep you apprised.

[curtisr]

I tried to pry up and turn the switch but, no luck. So, I then tried inserting a set-screw which gave me the needed results.

Here are some pictures. I think it's easy to tell why the switch failed and, for that matter, why the nut spun.

Thanks again to everyone who offered a suggestion.

[John_AZ]

THAT is one nasty, corroded, radiator fan switch.

John

[curtisr]

Originally Posted by John_AZ

THAT is one nasty, corroded, radiator fan switch.

John

Roger that.