2009poolesparky Posted March 10, 2012 Share Posted March 10, 2012 Hi allIve got a kenlowe electric fan fitted to my mk4 spit.I just need a thermostatic switch to make it turn on and off.In the pic there appears to be a drain hole with a bung in the bottom of the radiator.Could I fit a switch here or is this not an effective location, and if I can fit it here, does anyone know what the thread size is so i can find a suitable switch.ThanksAlex Link to comment Share on other sites More sharing options...
Nick Moore Posted March 10, 2012 Share Posted March 10, 2012 I don't know what size thread that is, but it's small. Most thermostatic switches have a 22 x 1.5mm thread. There are a lot of different switches this size, with different on and off temperatures. The tidiest way is to get a 22mm nut brazen to your top or bottom tank (cue recurring Forum argument number 7)* and screw the switch in.* 7 is a guess. But we seem to have a fair few polarised topics which resurface every six months or so! Link to comment Share on other sites More sharing options...
Davemate Posted March 10, 2012 Share Posted March 10, 2012 I had a nut thing welded onto my rad,nice and simple(opposite top hose) Link to comment Share on other sites More sharing options...
John Bonnett Posted March 11, 2012 Share Posted March 11, 2012 Car Builder Solutions sell an in-line adaptor with an M22 thread to fit in the hose. http://www.cbsonline.co.uk/product/Aluminium_Modular_Inline_Housing_32mm_MOIN32 Link to comment Share on other sites More sharing options...
ikar888 Posted March 11, 2012 Share Posted March 11, 2012 Hello, I did in my car. Brass tube 30mm and nut M22x1, 5 (from the ALU-PEX conector) Important is the temperature sensor in the return pipe 82-84 * C Not knowing that I was 97 * C and water to boil before the fan started. ;)http://sklep.intercars.com.pl/#/dynamic/sklep/ws_gru_clob.php?grukod=102488&wit=SKLEP&Lisc=0&KhPro=&od=0&gname=Termow%B3%B9cznik%20wentylatora%20ch%B3odnicy&leaf=811545 Link to comment Share on other sites More sharing options...
2009poolesparky Posted March 11, 2012 Author Share Posted March 11, 2012 the pipe insert looks good, but id prefer it mounted solid into something, not too keen on cutting pipes and adding clips, just seems more that can go wrong lol Link to comment Share on other sites More sharing options...
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