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| | | | Joined: May 2004 Posts: 1,312 'Bolter | | 'Bolter Joined: May 2004 Posts: 1,312 | I have an electric fan mounted on the outside ( grille side ) of my radiator, set up on a thermostat switch set at 190F. Currently it is pulling air thru the rad and out the grille. This seems at cross purposes with standard fan which is pulling in the opposite direction ? Is there a way to reverse the electric fan wiring to push, or are the blades 1 direction only ?
Thanks | | | | | Joined: Jul 2004 Posts: 5,708 'Bolter | | 'Bolter Joined: Jul 2004 Posts: 5,708 | britcon,
If you could reverse the motor, that would obviously make the air flow go the direction you want. Turing the fan blade assembly over won't accomplish what you want.
If the motor is a permanent magnet motor, it should be reversible by swapping leads. The very best scenario would be to find the manufacturer and give them a call...or ID the thing here, and maybe a member of the forum has "been there, done that".
Stuart | | | | | Joined: Jun 2003 Posts: 565 'Bolter | | 'Bolter Joined: Jun 2003 Posts: 565 | Can you mount it on the engine side so it will pull normally? I think most fan blades are directional, meaning you cant just reverse the motor and achieve the same cfm in the opposite direction. I could be wrong. Good luck.
Jeff
"Do not walk behind me, for I may not lead. Do not walk ahead of me, for I may not follow. Do not walk beside me either. Just leave me alone, you're starting to freak me out."
1957 GMC 150
| | | | | Joined: Jul 2004 Posts: 5,708 'Bolter | | 'Bolter Joined: Jul 2004 Posts: 5,708 | I looked at some fans online. Some indicated that the motor was reversible, some didn't say.
A few with very 'curvy' fins indicated the motor was reversible, but that the fan too had to be flopped to keep the curves going the right way.
Stuart | | | | | Joined: Mar 2001 Posts: 1,181 'Bolter | | 'Bolter Joined: Mar 2001 Posts: 1,181 | Britcon,
One of the reasons folks use the electric fans is as a replacement for the stock fans blades. I've seen many engine where the stock blades were removed and a fan placed on the engine side to pull air through as normal. The electrict fan come in many sizes and many cfm.
However, you may not like the look of the engine without the metal blades. | | | | | Joined: May 2004 Posts: 1,312 'Bolter | | 'Bolter Joined: May 2004 Posts: 1,312 | Thanks for all the replies. The mechanical fan I have has Flexalite type blades and moves quite a bit of air. No room to install the electric fan on the inside face of the rad without removing the mechanical fan. Let me see how cool she runs in hot weather - see if I am worrying too much. | | | | | Joined: Nov 2005 Posts: 238 Shop Shark | | Shop Shark Joined: Nov 2005 Posts: 238 | Most fan motors are permanent magnet; on these motors, if you reverse the electrical connections the motor will run in the opposite direction and the fan will then blow through your radiator. | | |
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