I've had an electric fan for a while now, luv it. I had to do some changes, like mounting it properly. And while I was at it, I ditched the cheesy adjustable temp control, partially cause I smoked it trying to solder it to the rad to get better control. I went to the local Advanced Auto and the guy did me the favor of skimming through the sensor catalog and found my a stock type non-adjustable sensor that could work with my intake. |
Its a GP Sorensen FS6. Also has 35946 on the box. It doesn't say on the box, but I believe it closes at 220 deg F and opens a 204 deg F. I don't have the stock MCU anymore, so I threaded it right in the forward most port on the intake where the stock sensor for the MCU resided. It seems to work pretty slick for me and tends to keep a tighter temp control due to the fact that it reads right from the coolant. |
This is the switch. the red light just tells me the fan is off. I am considering wiring it to tell me if the sensor kicks on, but the fan doesn't. However, there are problems of what to troubleshoot against. An open curcuit, such as a burned open fan or fuse is not too difficult, but I'm not sure if the fuse would blow if the fan was just "stuck" for some reason, so it could be a false sense of security. Of course, I guess it doesn't need to be perfect. If I could only find a fan, like computer fans, with a tachometer lead. Hmmmm.... |
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Ideally I would weld up a nice shroud, but this was quick and dirty and should work for now. Having those mounts in front of the fan blades made it pretty noisy now. Its about as noisy as the straight blade fans usually are. Before that, I could not hear it run from the cab, over the engine/header noises. As you can see, I went to the General Motors School of Automotive Engineering, i.e. if it don't fit, shim it! the uprights are angle welded to the frame and braced, from the PO(previous owner). The problem is the frame flex turns the radiator into a pretzel. I stood the rad out on pegs with rubber spacers to help let it "float" some. The fan mount is simply 1/8" X 1" flat stock bent to fit. I used a torch to bend them, trying to bend them cold is -extremely- difficult, they are surprisingly strong. There are small angle iron pieces that extend to the upper fan brackets, they help control the front/back rocking tendency. As you can see, the upper mount is not bolted to the fan, it just rests against it with some zip ties to help "balance" the fan. I did not bolt is cause any flame flex left would still try to rip the fan apart, so it is only solidly bolted to the lower mount. If I had thought of it, bending those same mounts up in an X pattern, vs. II pattern, may have solved that problem, and strenthened the rad mount if bolted at the center of the X. O well. |
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Last Modified 06/17/11