Re: Electric fan setup?
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Re: Electric fan setup?
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the right spot for a fan temp sensor is in the upper rad hose, because hot water goes in the bottom of the rad and cooled water is out the top. the fan should only come on if the water going back into the engine for cooling is hotter than the switch limit. if it is in the intake and the thermostat is stuck it will turn the fan on but not cool the engine because the flow through the rad is stopped. for temp senders to the gauge and the computer, the intake is the right spot, but a fan switch should be past the thermostat in the upper hose or the rad top tank itself. this is the kind of planning and redundancy for a fan system that I alluded the oems do but the driveway guy doesnt. I know the standard answer will be "never had a problem" and thats not my point. at the very least your fan will run a little more than it needs to, which is wear. at the worst, given a failure condition where the thermostat is stuck and the gauge sensor is inaccurate, the engine can run really hot and the driver could maybe open the hood to figure out why his fan is never shutting off, and get scalded by a blown hose. |
Re: Electric fan setup?
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Re: Electric fan setup?
That picture does show that top radiator hose would have engine temp though... maybe he just misspoke.
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Re: Electric fan setup?
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the top rad hose is still the right place for the fan switch, and the intake is still the right spot for the gauge temp sender and computer temp sender. and like I said, putting the fan switch in the intake with a stuck thermostat still wont cool anything down, and will run the fan more because a thermostat isnt just open or closed, it has a variable opening to maintain the engine temp. . |
Re: Electric fan setup?
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The Zip's water pump riser is a great solution for raising engine-driven fans to the center of the radiator on AD trucks. They elevate the water pump hub about 4-5 inches. Now that I think about it, I'm shocked they aren't commonplace on these trucks.
https://www.speedwaymotors.com/Zips-...Kit,58831.html |
Re: Electric fan setup?
I'm late to the party but if you haven't checked out Cooling Components do so.
coolingcomponentsinc.us.com They offer fans with shrouds for AD trucks. They are thin (2 5/8"). The fan is quiet (brushless motor) and powerful. They are also 2 speed which is nice. There tech line is fantastic and they stand behind there product. I know first hand. Worth the money. I too went with a cheap Ebay fan to start with but Cooling Components cured my cooling issues. Thanks Marc |
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