Electric fan help (for dummies)

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Stresst

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I need some help in determining which way the blades are supposed to be. According to this pic are they the "rite" way? They are definetely pushing but I would assume one way is better then the other. (They are turning clockwise)
 

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Stresst

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holy shit man, u have a clutch fan and 2 pushers? what are you doing to require that mutch?

Trying to get my a/c to work! lol

As a pusher are the blades installed the correct way?
 

ezdaar

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cannot tell from pic bud.

Do they tuning clockwise? If so then yess, they appear to be installed correctly.
As the center of the blade is its leading edge.

If you flip them and still turning clockwise, the end of the blades would be leading.. That would be wrong...

I bet both of those in combination with your clutch fan at idle is LOUD!
 
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Stresst

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cannot tell from pic bud.

Do they tuning clockwise? If so then yess, they appear to be installed correctly.
As the center of the blade is its leading edge.

If you flip them and still turning clockwise, the end of the blades would be leading.. That would be wrong...

I bet both of those in combination with your clutch fan at idle is LOUD!

Yes they turn clockwise. What do you mean " As the center of the blade is its leading edge. & If you flip them and still turning clockwise, the end of the blades would be leading" ??
 

ezdaar

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look at the pic, if the blades turned real slow so you could see them.

The center (curved edge) would be cutting air first aka leading..
If you flip them, the ends or tips would be cutting air first...

The curved blade is designed that way so that the entire blade is attempting toturn at the same speed. this cuts down on noise and improves the overall CFM rating of the entire blade..

A normal straight blade the tips move the most air as they are moving faster than the inside (closest to center).
 
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Stresst

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look at the pic, if the blades turned real slow so you could see them.

The center (curved edge) would be cutting air first aka leading..
If you flip them, the ends or tips would be cutting air first...

The curved blade is designed that way so that the entire blade is attempting toturn at the same speed. this cuts down on noise and improves the overall CFM rating of the entire blade..

A normal straight blade the tips move the most air as they are moving faster than the inside (closest to center).


Im neither high or drunk but I still have no clue as to if ther the rite for my settup.
 

gpracer1

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Just turn the fans on with the truck not running and feel which way the air flows.
 
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Stresst

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For some reason the truck has to be running for the fans to work.

I held a piece of paper up behind the fan and it sucks it rite in / holds it there. But that still doesnt tell me if the blades are in the most efficient position. The reason I ask is there is next to no improvement with the fans on.
 

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