RDrewieske Posted December 24, 2014 Share Posted December 24, 2014 Hi! Has anyone replaced engine fan with electric 89 V6. It has a 60amp alternator. Any help would be appreciated, thank you. RDrewieske Quote Link to comment Share on other sites More sharing options...
Bob C Posted December 24, 2014 Share Posted December 24, 2014 You may cut down on engine drag due to the fan but do you gain anything due to drag on the alternator? I want to keep my limited electrical output for charging the batteries and running my 12 volt refrigerator. Quote Link to comment Share on other sites More sharing options...
Derek up North Posted December 25, 2014 Share Posted December 25, 2014 Remember that the electric fan will not be operating all the time, so it's not a constant load on the alternator. Quote Link to comment Share on other sites More sharing options...
zero Posted December 25, 2014 Share Posted December 25, 2014 In a "normal" vehicle not being worked to death, the fan only comes on once in awhile when the vehicle is stopped and has no natural air-flow. When it DOEs come on it's going to draw 20 amps, more-or-less. For a Toyota with a stock 60 amp alternator that can only charge around 30 amps at engine idle - it will likely be a draw on the battery every time it comes on. Like when at a long stop-light or a traffic jam? Be more of a problem if the AC is on or the lights are on. That's one reason why newer vehicles have bigger alternators. To provide 40-60 amps at engine idle speed. If I wanted an electric fan on my Toyota (and I don't) - it would be rigged with a solenoid that increases RPM whenever the fan comes on. By the way, I used the word "normal" because a Toyota RV is not. It's pretty much overloaded and overworked much of the time. My diesel Ford truck has a thermal mechanical fan. It rarely comes on but when I'm towing 10,000 lbs. on a hot day and climbing a hill it does. When it DOES engage it sounds like a damn helicopter under my hood. I know my 1988 21 foot Toyota Minicruiser with auto trans and 22RE engine barely ever even gets warm. Not even on hill climbs. Trans - yes. Engine -no. That is, except when the water-pump shaft sheared right off. Quote Link to comment Share on other sites More sharing options...
Vanman Posted December 26, 2014 Share Posted December 26, 2014 Boy, when the fan kicks on in mine I can really hear it, but it's not that often. Quote Link to comment Share on other sites More sharing options...
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