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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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Utah and Alaska
astjp2 Offline OP
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astjp2  Offline OP
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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!
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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dogdays Offline
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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.
Re: BB/Hemi reverse rotation mechanical fan [Re: astjp2] #2418590
12/14/17 06:36 PM
12/14/17 06:36 PM
Joined: Sep 2007
Posts: 14,889
up yours
Supercuda Offline
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up yours


They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.
Re: BB/Hemi reverse rotation mechanical fan [Re: astjp2] #2418659
12/14/17 08:41 PM
12/14/17 08:41 PM
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Warren, MI
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Jerry Offline
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early dodge magnum engines had a reverse rotation fan and clutch setup. or go direct drive with a flex fan. we've had customers do both depending on how much clearance they have.


Superior Design Concepts
2574 Elliott Dr
Troy MI 48083
jerry@sdconcepts.com
www.sdconcepts.com
Facebook page: Superior Design Concepts
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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
Joined: Jan 2011
Posts: 4,785
Utah and Alaska
astjp2 Offline OP
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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!
Re: BB/Hemi reverse rotation mechanical fan [Re: astjp2] #2418938
12/15/17 12:30 PM
12/15/17 12:30 PM
Joined: Jan 2003
Posts: 6,988
Warren, MI
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Jerry Offline
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yes that should work'


Superior Design Concepts
2574 Elliott Dr
Troy MI 48083
jerry@sdconcepts.com
www.sdconcepts.com
Facebook page: Superior Design Concepts
www.bcrproducts.com
Re: BB/Hemi reverse rotation mechanical fan [Re: astjp2] #2418943
12/15/17 12:51 PM
12/15/17 12:51 PM
Joined: Sep 2011
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colorado
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savoy64 Offline
top fuel
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i found a ford bronco ll one with big plastic blades to run on my cummins 4bt---same thread pattern as the dodge cummins...

Re: BB/Hemi reverse rotation mechanical fan [Re: astjp2] #2419152
12/15/17 07:51 PM
12/15/17 07:51 PM
Joined: Jan 2011
Posts: 4,785
Utah and Alaska
astjp2 Offline OP
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astjp2  Offline OP
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Utah and Alaska
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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