RMarine
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| posted on 22/9/09 at 10:26 PM |
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thermostat housing questions
hi, i need to find a place for my fan switch as i have no hole on my rad. please see photo below to ID which plug is for the fan switch
[Edited on 22/9/09 by RMarine]
 
Rescued attachment whats this plug.JPG
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SeaBass
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| posted on 23/9/09 at 07:22 AM |
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Hi - the simple answer is they're both temperature sensors not switches. One was for the dash gauge and the other for the ECU I believe on the
car. Later vehicles only had the top sensor. You won't be able to drive a relay or the fan directly from them. You'd need a fan switch in
the rad or one that plumbs into a hose.
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02GF74
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| posted on 23/9/09 at 07:49 AM |
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you could make a simple electroonic circuit - a comparator to switch a fan - you would need to design in some hysteresis though.
easier non electronic option is to drill the radiator in front of a hose and use a screw in boss into which the switch fits.
I have one of these on my escort rad - dunno where it is from but it works.
if rad is brass, you can solder it in place, not so easy if aluminininininum.
[Edited on 23/9/09 by 02GF74]
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britishtrident
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| posted on 23/9/09 at 11:42 AM |
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Fan should really work on radiator core temperature not engine.
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big_wasa
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| posted on 23/9/09 at 03:56 PM |
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Top one is ecu temp sender and bottom one is gauge temp sensor.
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