upgrading e-fan question

muddeprived · Apr 16, 2010

I have plans to upgrade my e-fan. Jeg's has a good deal going on and I'm considering it..

JEGS 52130 JEGS Straight Blade Universal Electric Cooling Fans

I'm confused on something though. It says the fan is reversible. Does the fan blade assembly come off and flip around to change from push to puller? How is it reversible? I want to mount this behind the radiator as a puller. I never messed with e-fans before so this is new to me.

Ben_Dyer · Apr 16, 2010

it looks as though the tabs that come with the kit alow you too place the fan in "backwards" to reverse the flow.

muddeprived · Apr 16, 2010

I emailed jegs. They said the fan has a nut in the middle. That comes off and the fan is flipped around. There's 5 holes surrounding the nuts that line up with studs so the fan stays put as it's held by the nut.

gradon · Apr 16, 2010

Sometimes all you have to do is swap the leads

Ben_Dyer · Apr 16, 2010

i forgot about switching the leads to revers motor power. duhh.

beakie · Apr 16, 2010

swapping the leads = reverse
mounting the fan backwards = reverse air flow, pushing not pulling (tho not always advisable)
flipping the blades around = not reverse

muddeprived · Apr 16, 2010

beakie said:
swapping the leads = reverse
mounting the fan backwards = reverse air flow, pushing not pulling (tho not always advisable)
flipping the blades around = not reverse

Come to think of it, you are right. I wasn't thinking about how the motor still spins in the same direction.

Jegs is gettin another email from me lol....

kastein · Apr 16, 2010

Be careful, brushless DC motors do not work when you power them in reverse... a well designed one will just not work, but a badly designed one may burn out.

I'm not sure if the motor in that fan is brushless or not.

My bet is that they are calling it reversible because you can flip the housing on it somehow, which would reverse the flow.

muddeprived · Apr 16, 2010

kastein said:
Be careful, brushless DC motors do not work when you power them in reverse... a well designed one will just not work, but a badly designed one may burn out.

I'm not sure if the motor in that fan is brushless or not.

My bet is that they are calling it reversible because you can flip the housing on it somehow, which would reverse the flow.

I'm looking at the picture and I can't see how I can flip the housing cuz it seems to be one piece. if I turn the whole thing around, the cone shaped rear will be facing the radiator and won't mount flush.

foxwar71 · Apr 16, 2010

muddeprived said:
I have plans to upgrade my e-fan. Jeg's has a good deal going on and I'm considering it..

JEGS 52130 JEGS Straight Blade Universal Electric Cooling Fans

I want to mount this behind the radiator as a puller. I never messed with e-fans before so this is new to me.

Check out the writeup I did, essentially the same fan, probably more then likely is. It comes setup as a puller ready to go, nothing special expect two wires.

http://www.naxja.org/forum/showthread.php?t=942192

muddeprived · Apr 16, 2010

foxwar71 said:
Check out the writeup I did, essentially the same fan, probably more then likely is. It comes setup as a puller ready to go, nothing special expect two wires.

http://www.naxja.org/forum/showthread.php?t=942192

Thanks for the write-up. I needed a pix of the fan next to the oem fan. Im gonna chop up the oem shroud and fit the new fan in the middle.

upgrading e-fan question

muddeprived

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Ben_Dyer

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muddeprived

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gradon

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Ben_Dyer

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beakie

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muddeprived

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kastein

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muddeprived

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foxwar71

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muddeprived

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