
09-17-2016, 12:25 PM
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CC Member
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Join Date: Feb 2014
Location: White City,
SK
Cobra Make, Engine: West Coast, 460 CID
Posts: 2,916
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Not Ranked
Quote:
Originally Posted by moore_rb
Electric fans pull a LOT of current - a 30 amp fuse, a switching relay, and 14 gauge wire (minimum) are all great ideas.- Also, make sure that when the fan is on while the engine is idling, that the alternator is keeping up - If the battery is below 12V at idle when the fan is on, then the alternator is losing the race....
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When the relay for my fans quit I wired a pair of 40 amp relays in parallel and installed a 30 amp circuit breaker in the circuit feeding them. I've not tripped the breaker yet, but if it overloads it will trip out, cool down, then re-set, all by itself. I may have a problem to deal with, but at least I should be able to limp home.
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Brian
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