RFB
97 FZJ80 LIFTED SC DUAL BATTERIES,37s
here is the fan its a denso
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and heres the relay that was previously installe,d (im guessing it was a t stat controlled install) With this fan can I still run battry(w fuse) hot to switch then switch to fan and neg fan back to neg battery or should I keep the relay in the mix) View attachment 1443400 View attachment 1443401
YOUR THE MAN AMONG MEN, OR A LIFESAVER SO TO SPEAK.Pictured is a 20amp auto reset breaker not a relay. Using the diagram I made install the breaker where I have the fuse and wiring per diagram. The switch has a rating of 21amp so you do not need a relay. Use 14ga wiring at a minimum. Not the bat. terminal on breaker this is important not to reverse.
Ok the aux fan is set, I got rid of the auto reset breaker, and simply pulled from pos(battery) with a fuse right after to switch and it works perfect. thanks for all the help. a lifesaver. Id say.
I have the fused line from battery to the switch then pos from swith to fan switch is grounded to underhood firewall and the fan in has pos in from switch and tied on neg side to neg batteryIf I understand your wiring scheme correctly, I see one potential problem.
First, to clarify I'm seeing this in my mind the way you have it wired -
I believe you're stating your HOT wire goes from the battery to the switch, THEN from the switch to an inline fuse, then to the positive on the fan.
Am I correct?
If so, you've got your fuse in the wrong location.
The purpose of the fuse is to break the HOT connection in the event of a short or other over amperage draw.
The way you have it wired, the fan itself is protected; but the switch and preceding wiring from the battery are NOT. Should you have a short between the battery & the switch, you could cook the switch, melt the wire, or even possibly start an electrical fire. (For example, while wheeling, that wire rubs on some bracket under the hood or dash & wears through the insulation - SHORT)
You'll want to locate that fuse as close to the battery as possible. This way, if the above SHORT occurs, the fuse blows & cuts the power.
Additionally, the benefit of the self resetting circuit breaker you previously had would be not needing to source a replacement fuse on the trail, should the afformentioned SHORT occur. Once the issue is corrected, the breaker resets itself & power is restored.
I have the fused line from battery to the switch then pos from swith to fan switch is grounded to underhood firewall and the fan in has pos in from switch and tied on neg side to neg battery
If your switch light is staying on all the time, rather than turning on & off with the fan; you likely have the 12v + in & out reversed. Try flip flopping the power wires at the switch & see if that makes a difference.
I have mine on the "outside" and have reversed the polarity so the fan in between the grille and mounted on radiator and I have it spinning counterclockwise. maybe that helps?I have a question that I was wondering about on this fan...... is this fan (100 series....correct?) considered a "pusher"? I have always been confused on which side of the radiator a pusher, or a puller are mounted. Thank you for your time!
Exactly what I did, lolIf your switch light is staying on all the time, rather than turning on & off with the fan; you likely have the 12v + in & out reversed. Try flip flopping the power wires at the switch & see if that makes a difference.
I have a question that I was wondering about on this fan...... is this fan (100 series....correct?) considered a "pusher"? I have always been confused on which side of the radiator a pusher, or a puller are mounted. Thank you for your time!
I have mine on the "outside" and have reversed the polarity so the fan in between the grille and mounted on radiator and I have it spinning counterclockwise. maybe that helps?
I just rewired it, with help from Landcruiserphil, Im testing to see what rotation works the best. currently Im thinking I have it reversed and its wrong. But it has been hot enough to check with the autoguageThank you for the reply. My question to you would be.... if you have yours spinning counter-clockwise, in front of your radiator, wouldn't that mean yours is "pulling"? Does your set up help quite a bit? Knock-on-wood, mine isn't getting above 1/2 way on the stock gauge (verified with hand held temp sensor) but I want to stay "in front of the game". Thanks again!