Fan Clutch
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Posting Guru
Joined: Nov 2007
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From: Long Island, NY
Fan Clutch
Can someone explain how the fan clutch works? I have heard people say in other posts "when the fan comes on" mine is always on. I have had other vehicels that had the fan bolted right onto the water pump without the clutch. What are the advantages of having the clutch?
Post Fiend
Joined: Oct 2003
Posts: 5,903
Likes: 1
From: MICHIGAN
It saves a bunch of HP loss. I've heard as much as 10-15 HP.
How it works:
http://www.aa1car.com/library/cooling_fan_clutch.htm
IIRC, You can remove the little spring on the front of the clutch and it should turn off.
How it works:
http://www.aa1car.com/library/cooling_fan_clutch.htm
IIRC, You can remove the little spring on the front of the clutch and it should turn off.
More Turbo
Joined: Mar 2007
Posts: 708
Likes: 0
The fan clutch is so the fan doesn't always run. It is suppose to engage at a pre-set temp locking it to the speed of the motor. I believe that the locking action is progressive too or in otherwords the hotter the engine the more it locks and the faster the fan moves. You definatly want to keep it, but if it is always on then its not working right. Its probebly bad or sized.
Logistics Pro
Joined: Oct 2004
Posts: 4,738
Likes: 103
From: FL
Yea don't look to cheap.. Powerstrokeshop.com has them from 240... Little bit may want to shop around
http://catalog.powerstrokeshop.com/p...layCatalogid=0
-Robb
http://catalog.powerstrokeshop.com/p...layCatalogid=0
-Robb
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Joined: Oct 2006
Posts: 332
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From: Emmett, ID
Originally Posted by Robbgt
Yea don't look to cheap.. Powerstrokeshop.com has them from 240... Little bit may want to shop around
http://catalog.powerstrokeshop.com/partlocator/index.cfm?action=getJointLocator&siteid=214083&cha pter=§ionids=0,2308&groupid=2332&subgroupid=40 86&componentid=4288&make=10&model=F%2D350&year=199 7&catalogid=2&displayCatalogid=0
-Robb
http://catalog.powerstrokeshop.com/partlocator/index.cfm?action=getJointLocator&siteid=214083&cha pter=§ionids=0,2308&groupid=2332&subgroupid=40 86&componentid=4288&make=10&model=F%2D350&year=199 7&catalogid=2&displayCatalogid=0
-Robb
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Posting Guru
Joined: Nov 2007
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From: Long Island, NY
Originally Posted by mcdavidson
Yikes... at those prices looks like it would be time to do a little Junkyard electric fan mod!!!
Senior User
Joined: Oct 2006
Posts: 332
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From: Emmett, ID
Originally Posted by scatgo
Yea, just read a post about it. Just might do it. It will work out to cost less and depending on who you ask it should work just as good or better.
That is one of the mods I want to try to get to this spring / Summer...
Logistics Pro
Joined: Oct 2004
Posts: 4,738
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From: FL
... While on this topic, about how much should the fan clutch have when moving it by hand? (looking for a non-technical measurement here..) Mine I can feel a good amount of resistance, if i spit it by hand, makes it about 1/4 turn, maybe... (when engine off obviously...) this sound about right?
-Robb
-Robb
Senior User
Joined: Oct 2006
Posts: 332
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From: Emmett, ID
Originally Posted by Robbgt
... While on this topic, about how much should the fan clutch have when moving it by hand? (looking for a non-technical measurement here..) Mine I can feel a good amount of resistance, if i spit it by hand, makes it about 1/4 turn, maybe... (when engine off obviously...) this sound about right?
-Robb
-Robb
Logistics Pro
Joined: Oct 2004
Posts: 4,738
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From: FL
Originally Posted by mcdavidson
From what I remember, You should be able to turn it by hand, and with a good forcefull spin by hand it should turn between a quarter and a half turn + (so YES that sounds about right), if if keeps spinning it's shot and if it won't turn it's seized - non technical enough?
-Robb
FOREIGN GURU
Joined: Jul 2006
Posts: 7,655
Likes: 7
From: Celaya, Gto. MX
Originally Posted by Cuda_jim
It saves a bunch of HP loss. I've heard as much as 10-15 HP.
How it works:
http://www.aa1car.com/library/cooling_fan_clutch.htm
IIRC, You can remove the little spring on the front of the clutch and it should turn off.
How it works:
http://www.aa1car.com/library/cooling_fan_clutch.htm
IIRC, You can remove the little spring on the front of the clutch and it should turn off.
PS, I also tried to rep, but ..........................