Fan and Fan Clutch - Pontiac GTO Forum
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post #1 of 5 (permalink) Old 11-19-2012, 09:11 AM Thread Starter
 
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Fan and Fan Clutch

Can someone reccomend a good radiator fan and clutch for a 69. I am installing a high performance engine and I want to make sure it is cooled correctly. Not interested in electric fans, just need a reccomendation for a good aftermarket fan for a high performance engine.

-JW
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post #2 of 5 (permalink) Old 11-19-2012, 10:48 AM
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In truth, for an engine-driven fan system it's pretty tough to do better than the original factory fan and clutch, properly installed with the shroud.

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post #3 of 5 (permalink) Old 12-07-2012, 07:47 PM
 
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I have a 66 gto that has a clutch fan setup.. My problem is that there is a little wobble when running...I think it actually have weird sound coming from the engine that's driving me nuts....does this make sense.?...Is it the clutch or the fan.....How can you tell so you don't have to by both to solve the problem...........thanks
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post #4 of 5 (permalink) Old 12-10-2012, 12:55 AM
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If it's wobbling, my first suspicion would be the fan clutch. When they fail, one of the ways they can fail is they can come apart and allow the fan to spin loose inside the engine compartment. It's not pretty...
With the engine off, grab it and see if you can move it around with your hands. You ought to be able to tell where the looseness is that way - the clutch or the water pump shaft.

Bear

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post #5 of 5 (permalink) Old 12-14-2012, 02:07 PM
 
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I check it....There is a little, very slight movement...Can't really tell if it's the clutch or the water pump... I'm inclined to think it's the clutch as the engine has about 4000 at best miles on it from it's overhaul. I'm guessing it doesn't take much give or movement to create a wobble.....

thanks so much for your several responses to my issues,,,Bear
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