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BB/Hemi reverse rotation mechanical fan
#2418569
12/14/17 05:37 PM
12/14/17 05:37 PM
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Joined: Jan 2011
Posts: 4,785 Utah and Alaska
astjp2
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OP
master
Joined: Jan 2011
Posts: 4,785
Utah and Alaska
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What would be my options for a reverse rotation clutch fan? I am thinking of putting the SD concepts serpentine belt on my hemi and I want to run a clutch fan. Can I used a standard clutch and find a 7 blade fan with the vanes going the opposite direction? I am done with electric fans. Tim
1941 Taylorcraft 1968 Charger 1994 Wrangler 1998 Wrangler 2008 Kia Rio 2017 Jetta
I didn't do 4 years and 9 months of Graduate School to be called Mister!
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Re: BB/Hemi reverse rotation mechanical fan
[Re: astjp2]
#2418585
12/14/17 06:26 PM
12/14/17 06:26 PM
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Joined: Jan 2003
Posts: 16,376
dogdays
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,376
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The fan clutch has to be for the correct rotation.
There are tons of reverse rotation fans out there. Basically any RWD vehicle with a serpentine belt has a fan that rotates counterclockwise.
My 1993 Chevy Suburban is an example. Thermal clutch, reverse rotation water pump and fan.
IMHO there is a ton of interchange between fans, a lot more than you may imagine. So look for the fan/clutch assembly in the Internet Lending Library (Rockauto) and get one that fits. If the pilot stub from front of water pump is 0.625, then that pump to clutch circle diameter isn't important if the clutch hub flange has slotted holes. Then you use the fan matching the thermal clutch.
R.
I'm a little surprised at this question because serpentine belt systems usually include either a correct water pump or a list of what works.
Last edited by dogdays; 12/14/17 06:39 PM.
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Re: BB/Hemi reverse rotation mechanical fan
[Re: astjp2]
#2418888
12/15/17 06:37 AM
12/15/17 06:37 AM
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Joined: Jan 2011
Posts: 4,785 Utah and Alaska
astjp2
OP
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OP
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Posts: 4,785
Utah and Alaska
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Most people use electric fans, I am going old school with a clutch fan. The Dakota fan is 5 blades, I want to find a 7 blade if possible. Thanks Everyone, Tim found this, will it work? https://www.summitracing.com/parts/der-17918/overview/
Last edited by astjp2; 12/15/17 07:36 AM.
1941 Taylorcraft 1968 Charger 1994 Wrangler 1998 Wrangler 2008 Kia Rio 2017 Jetta
I didn't do 4 years and 9 months of Graduate School to be called Mister!
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Re: BB/Hemi reverse rotation mechanical fan
[Re: astjp2]
#2419152
12/15/17 07:51 PM
12/15/17 07:51 PM
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Joined: Jan 2011
Posts: 4,785 Utah and Alaska
astjp2
OP
master
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OP
master
Joined: Jan 2011
Posts: 4,785
Utah and Alaska
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There is a reverse rotation Jeep clutch application that is the heavy duty and is only .5 inches taller than the Jag unit...may have to see how that one fits. Tim
1941 Taylorcraft 1968 Charger 1994 Wrangler 1998 Wrangler 2008 Kia Rio 2017 Jetta
I didn't do 4 years and 9 months of Graduate School to be called Mister!
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