Quick electric fan power?

Discussion in 'Technical' started by AppMaverick, Mar 10, 2014.

  1. AppMaverick

    AppMaverick Member

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    Hey guys!

    Just switched out my flex fan for an electric. Fan works great off the battery... Thought I found a good 12v supply wire with the multi meter, but turned out to be my unused oil idiot light wire. It won't work.

    Any thoughts on quick/good sources of keyed-12v power under the hood until I get my relays/fuse boxes/switches intalled?
     
  2. AppMaverick

    AppMaverick Member

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    keyed-on side of the started selenoid is reading 6 volts, and so is the hot side of the ignition coil. Thinking maybe straight to alternator for now?

    I'm gonna watch The Walking Dead... If I can't think of something else, I have two auxillary fuse boxes I ran power wires to in the driving compartment. I'll just take the constant power fuse box wire that's run to near the battery and hook it to the output of my keyed aux fuse box that's wired into my ignition under the dash. Then I'll take that output wire and hook it to the fan. That'll work for now I guess...
     
    Last edited: Mar 10, 2014
  3. 71gold

    71gold Frank Cooper Supporting Member

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    as long as it's a fused circuit...:yup:
     
  4. AppMaverick

    AppMaverick Member

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    Ok... That didn't work so great. Doing it that way the fan is waaaaaaay less powerful than if I connect it straight to the battery. Don't think it'll cool enough that way. Even tried bypassing the fuse box and just connecting the two wires (the long stretch is 12 or 14 gauge).

    Thinking I'll just be popping the hood before and after driving to pop it on and off of the batter for now...
     
  5. John Holden

    John Holden Member

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    You don't really want to use any existing wiring for the fan. You should be wiring it into a dedicated relay. You can use any existing wiring to activate the relay if you want though. You would have a heavy gage wire from the battery straight to the relay. And them from the relay to the fan. You won't have any voltage drop to the fan and you won't melt any factory wires. That's the only right way to do it in my opinion.
     
  6. Dave B

    Dave B I like Mavericks!

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    That is, the only way, plus have the relay controlled by a thermostat.
     
  7. John Holden

    John Holden Member

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    True but I didn't mention that because it sounds like he is doing this on a budget. Even if he just uses a relay at least it will be safe.
     
  8. AppMaverick

    AppMaverick Member

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    Thanks guys. I have 6 of those 30 amp bosh relays sitting at my brother's house. (one for horn, headlights, fan, and a couple extra). Was just trying to use it til I got over there. Got excited lol
     
  9. 71gold

    71gold Frank Cooper Supporting Member

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    understandable...but it only takes one time turning it on to fry the electrical system...:yup:
     
  10. AppMaverick

    AppMaverick Member

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    I've just been popping the hood and shoving the fan wire into the battery terminal before driving lol. It's been working great!

    I'm installing the relay tomorrow (y)
     
  11. mighty76

    mighty76 Member

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    I got a fan control kit, by hayden, cuts in and out at certain temp, easy to install, 30-40 dollars from most parts places,:yup:
     
  12. AppMaverick

    AppMaverick Member

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    That's the plan for the future. Work's been pretty slow because of winter and there's been more important needs for the $$.. The fan just kinda fell in my lap out of nowhere for free.
     
  13. mighty76

    mighty76 Member

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    run a toggle switch from inside , with an inline fuse, 20amp, should do, to the battery, then to your fan, then you can control it from your seat,(y)
     

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