i got an electric fan and i want to run it with a toggle switch so if i need it for traffic i can just turn it on and off so the question is how and what do i need to wire it up??? thanks robert
Robert, Are you trying to supplement a belt-driven fan? Or are you running without any fan right now? I'm no expert, but I would think that having an idle pusher fan in front of the radiator would impede air flow through to the puller mechanical fan. Meaning... you'd almost have to run the electrical fan all the time in order to prevent overheating. What is your temperature gauge reading that is causing you concern? Damon
fan i have the manuel fan on my 235 engine the truck has not over heated butt was thinking that an electric fan would help keeping the 235 engine a little cooler in so calif traffic so you think it will block air?? i have not even thought of that one thanks.
fan i have the manuel fan on my 235 engine the truck has not over heated butt was thinking that an electric fan would help keeping the 235 engine a little cooler in so calif traffic so you think it will block air?? i have not even thought of that one thanks.
If you're going to remove the pully-driven fan, you would probably be fine. But since you want to just put it on a toggle switch, you'd have to be very vigilant in watching your temperature gauge. Electric fans are typically triggered by a temperature sensor. If you're not going to have a temperature sensor in-line to turn on the fan, you'd better keep one eye glued to your dash board gauge. Just kinda thinking out loud. If it's not overheating with the current set-up, there may not be a good enough reason to change things. Damon
fan Thanks Damon i was just thinking that a little more air flow would be better if i get stuck in traffic in so calif i want to keep the stock fan on just seems that the sheet metal gets realy hot from engine heat. was thinking more is better. Robert
Maybe you could add the electric fan with the temperature sensor-activated switch? Or maybe add the electric fan without an outer shroud? I'm sure some better-informed, more experienced members will chime in. lol Damon
12v to switch, switch to #85 onSPDT relay. #86 to ground. #30 to fan, 12v fused to #87A. I would put a 30 amp fuse in line and use some decent gauge wire, at least 12. You can run a pusher as a suppliment. I have run my A/C fan in this sitution.
E-Fans Like Russ said ; Be sure to run a relay , if it draws more than 15 amperes , the fan is kaput and needs replacing , I ran mine on a 10 ampere fuse . Get the widest one you can fit and use the tranny cooler mounting kits from NAPA or Trans Go to securely attache it to the radiator core . Don't skip those special waffle sided plastic buffers ~ they go against the fins to prevent damage . Mount it as high up as you can too . I'd run both a toggle switch and a temp. sensor , you're correct in that idling if So. Cal. heat is where you'll have heating issues . Remember to wire it live so you can run it with the key off after a long heat soak .
fan Thanks i found a diagram on how to wire one up just thought more was better got the idea when waiting in line to get into brothers truck show and saw some trucks over heating plus the sheet metal gets super hot i always open the hood to let her cool off when i get home from a little drive around town.
E-Fan That's *exactly* why you should wire it live and through a relay ~ you park & shjt it off , as you walk away the heat rises and the fan comes on and blows gently for a few minutes , cooling off your engine and accessories , the hood's paint and so on ~ there's NO DOWN SIDE to a properly installed electric pusher fan .
