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 Thermo switch for radiator fan for atv
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slhr714
New Member

1 Posts

Posted - Sep 19 2013 :  4:06:12 PM  Show Profile  Reply with Quote
Just wondering if anybody could help me, I have an atv with a liquid cooled engine set up very much like the cooling system on a car, Im having problems with thermo switch going bad went threw 3 since Ive owned it and thay are $40 each. the one key diference it has over a car is there is no relay between thermo switch and power source. I assume its because the atv fan pulls under 4 amps when runnng. I was thinking about wiring in a relay, or is that overkill. not sure what the amp. rating is on my thermoswitch, cant find any info on that

Aaron Cake
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Canada
6717 Posts

Posted - Sep 28 2013 :  09:15:22 AM  Show Profile  Visit Aaron Cake's Homepage  Send Aaron Cake an ICQ Message  Send Aaron Cake a Yahoo! Message  Reply with Quote
Wire up the relay as shown here:
http://www.aaroncake.net/rx-7/efaninstall.htm

That way it doesn't matter what the rating of the thermoswitch is. Use a standard automotive 30A relay and you'll be fine.
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