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Unread 08-26-2013, 06:04 PM   #1
Fookn4x4
Registered User
1995 ZJ 
 
Join Date: Apr 2013
Location: Winston-Salem, NC
Posts: 14
Any play allowed with fan clutch?

My '95 4.0 zj just had a water pump die. I am in the processes of replacing and while removing the fan, I noticed a very slight side to side wiggle of the fan clutch if I moved it (and I mean slight as in probably 1/16th of an inch). The clutch itself still has great resistance and will turn all the way around with regular force. Upon inspection of the water pump, I could see where the inside part that spins to pump water had started grinding on the internal pump housing. My question; Does this mean the wear on metal housing could have been caused by some sort of vibration due to the slight side-to-side movement of the fan clutch? Or was it caused by a faulty bearing? Can a clutch kill a water pump? I just don't want to have to drop $60 for a new fan clutch if pump failed because of a faulty bearing and I also don't want to have to replace a prematurely failed water pump due to a possible bad clutch. What do you guys think? Thanks for the help

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Unread 08-26-2013, 06:16 PM   #2
wgirvine
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1992 XJ Cherokee 
 
Join Date: Oct 2007
Location: Rosamond, CA
Posts: 603
Fan clutch should have no play. Replace.
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Unread 08-26-2013, 06:26 PM   #3
Fookn4x4
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1995 ZJ 
 
Join Date: Apr 2013
Location: Winston-Salem, NC
Posts: 14
Ok thanks. Could this have caused the pump to fail prematurely then?
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Unread 08-26-2013, 07:11 PM   #4
xcaliber81
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1994 ZJ 
 
Join Date: Jul 2012
Location: Prince George, B.C
Posts: 2,743
I just replaced my fan clutch also and after doing it now im seriously considering swapping it out for an electric one cause I lost 2-3 mpg's cause mine never kicked in.
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