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Author: Subject: Fan switches
Millworm

posted on 11/3/18 at 03:10 PM Reply With Quote
Fan switches

I've got an alloy rad here and it's all fitted and working apart from the fan switch, Its m20x1.5 thread for some reason, the rad its from a corsa b. It has a blanking plug in at the moment and a cool running stat so it's never got hot enough for the fan to need to come on but I'm planning on going to the nurburgring next month and I want to have all bases covered so need a switch for it. Any ideas on what will fit? I've looked for m20x1.5 fan switches witch don't seem to exist and also looked for adaptors to use the standard m22x1.5 switch also with no joy. Any suggestions? I'm pulling my hair out as I'm trying to save for the trip and want to avoid buying another rad if possible. Thanks
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Schrodinger

posted on 11/3/18 at 03:59 PM Reply With Quote
Have you tried a Corsa b switch?





Keith

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Millworm

posted on 11/3/18 at 04:01 PM Reply With Quote
Yes the corsa b switch is m22 so is too big for the hole, if I could tig weld I'd buy a boss and weld it in, but I can't haha
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owelly

posted on 11/3/18 at 04:16 PM Reply With Quote
Drill and tap the blanking plug with M14 and fit a switch to that?

https://www.ebay.co.uk/itm/Fan-Temp-Cooling-Switch-100C-95C-M14-x-1-5-For-Kit-Car-Track-Rally/272958629375?hash=item3f8d9a25ff:g:iBoAAOSweuxWTfz~ />
[Edited on 11/3/18 by owelly]





http://www.ppcmag.co.uk

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Millworm

posted on 11/3/18 at 04:29 PM Reply With Quote
Not a bad idea, looks like the easiest way to get round the problem
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TimC

posted on 11/3/18 at 05:12 PM Reply With Quote
If you have a problem with the blanking plug, get someone to turn-up an adapter.






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Millworm

posted on 11/3/18 at 05:20 PM Reply With Quote
I'm going to try and tap it, it's only Ali so could end up going horribly wrong but only time will tell
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TimC

posted on 17/3/18 at 04:21 PM Reply With Quote
How did you get on?






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Millworm

posted on 17/3/18 at 04:23 PM Reply With Quote
It worked! All in and running witch means I've binned the cool running stat aswell as I no longer fear overheating. And it runs a load better for it! Thanks guys
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