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Old 12-15-2002, 03:22 PM
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Post Electric Fan

My electric fan is noisy. I hope some one out there can help me. I bought a Spal electric fan and its noisier than a noisy gear drive. I can start the car in the garage, go out to the street and the fan is louder than the engine.. something has got to go..( the fan ) does any one out there know which fan is the quietest? I am running a 16" straight blade and I have to find something quieter... Help!! Thanks to any one with any input.....GlennK <img src="graemlins/pain.gif" border="0" alt="[pain]" />

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Old 12-15-2002, 03:41 PM
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I have had really good experience with Hayden Fans. haydenauto.com/elecfans.html The dog leg blade designe moves lots of air and they are quiet. The blade is a unidirectional designe, so don't forget to flip the blade if you use it as a pull fan. <img src="graemlins/drool.gif" border="0" alt="[drool]" />
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Old 12-15-2002, 04:40 PM
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Extreme: I was looking at the Hayden but couldn't get to their on line catalog (stupid corrupted computer) so I don't know what their prices are. I am also looking at Flex a lite.... perma-cool...and Deralle. Just trying to see what others are using.. Thanks for responding...GlennK
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Old 12-16-2002, 02:35 PM
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All the electric fans I've used have been noisy.Do you have it on thermostat so it doesn't run all the time.I have a "Cooling Components" shrouded electric on my 46 Ford, works super. Only is noisy when it runs, ha, ha.I also have an eletric fan on a remote a/c condenser on it, youi should hear it when they both run. It does run cool though[in & out] so the fan noise is music to my ears.
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Old 12-16-2002, 07:32 PM
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You should always use a fan shroud in a pull-thru set-up. If you put an electric fan directly mounted to the rad, it will only move half the air that it should. I built my own shroud out of body metal. You only need about 1" between the fan and the rad. I found that it also makes the fan quieter. <img src="graemlins/mwink.gif" border="0" alt="[mwink]" />
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Old 12-17-2002, 05:24 PM
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Thanks Guys for the input. I still am undecided on which fan to use. I have been thinking of going back to the stock clutch fan. I will have to build some kind of shroud tho. Have to move it closer to the rad also. Thought this electric was going to solve all the prob. but not to be...Don't want to keep on buying these things and then not liking the noise. Thanks again.........GlennK <img src="graemlins/pain.gif" border="0" alt="[pain]" />
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Old 12-17-2002, 07:28 PM
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Also check to see if anything is rubbing against the fan housing. My Camaro's AC lines were bouncing on the electric fan housing and made a really loud metallic sound. I thought it was an alternator or AC pump bearing going out, it was really loud. A couple of cable ties cured the problem as Chevy doesn't make those AC clamps anymore.
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Old 01-08-2006, 09:38 AM
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Thanks Doc and guys, I'll give the wire swap a try. In the meantime, here's a picture of the SPAL reverser, but not much detail on the wiring scheme. If you see any serious issues that make changing wires a threat, please let me know.
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Old 01-09-2006, 03:19 AM
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I put a Walker Z-Cool radiator in my truck last year and added a 16" electric fan ... I don't know the make of the fan but my mechanic, who did the job, said the "S" shaped fan blades were the quietest. That's what we put in ... it has a built-in shroud ... and I've never thought it was noisey at all.

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Alan Horvath
54 Chevy Pickup
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