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Go Back   Corvette Action Center > 1953 - 1967 Corvettes > C1 & C2 General and Technical Discussion


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Old 03-24-04, 02:41 PM   #1 (permalink)
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VETTE1966 is offline
 
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Default Fan Clutch Question

I HAVE A 1966 ROADSTER WITH 327/300 ORIGINAL MOTOR. IT CONSISTENTLY GETS A LITTLE HOT (200-220) IN STOP AND GO TRAFFIC BUT COOLS DOWN SOME AS I GO FASTER OR GET ON THE FREEWAY. I'M SURE OF THE TEMP GAUGE AS I HAVE TESTED THE THERM HOUSING WITH AN IR GUN. IT HAS BEEN MENTIONED TO ME THAT THERE MAY BE A FAN CLUTCH PROBLEM. IS THERE ANY WAY TO TEST THIS WITHOUT BUYING SOME SORT OF ELIMINATOR THAT MAKES THE FAN CONSTANTLY "IN GEAR"? THANKS!!
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Old 03-24-04, 04:39 PM   #2 (permalink)
cdr63corv
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Was having the same problem last summer, asked around at the local parts suppliers and mechanic shops but nobody seemed to know how to go about it. Heard theyre bad if they leak or make much noise but not much else. Ended up buying a replacement from car quest, once I get it on the road to test it Ill find out if this was the problem. Good luck, it can be pretty frustrating trying to find the problem.
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Old 03-24-04, 05:00 PM   #3 (permalink)
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Default Fan Clutch Testing

I Have Just Heard From Others That After The Car Warms Up And /or Gets Too Warm, Turn It Off And See How Many Times The Fan Turns---3 To 5 Times Should Be The Max Or Clutch Unit May Be Suspect. I'm Going To Try This. You Might Also And Let's Compare Results.

Thanks For Reply...
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Old 03-24-04, 06:23 PM   #4 (permalink)
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VETTE1966,

Welcome to CAC.

Try these links...
http://www.ifsja.org/tech/ac/fan_clutch.shtml

http://www.federal-mogul.com/cda/con...3_7519,00.html (more than half-way down)
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Old 03-24-04, 06:37 PM   #5 (permalink)
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Default Fan Clutch Issue

Thanks For The Great Technical Links---i Have Plenty To Follow-up With This Weekend. Have A Great Time Driving Your 1967!!!
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Old 03-24-04, 06:45 PM   #6 (permalink)
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You're welcome.

I meant to add this one too...
http://www.asashop.org/autoinc/june97/cooling.htm
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Old 03-24-04, 10:55 PM   #7 (permalink)
427
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This may be worth reading too:
http://www.corvette.net/cac/fan_clutch
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