C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
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Old Aug 6, 2006 | 04:54 PM
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Default radiator fan

My car seemed to run hot yesterday in town. When I got home I opened the hood and spun the fan and it had some resistance but not a whole lot. I figured it should be fairly tight and not spin easy. How can you tell if it is bad. Who makes a good replacement?
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Old Aug 6, 2006 | 06:55 PM
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Also, I was thinking aobut getting a high flow alum. water pump to help mover the water. i have heard-I know-that some rebuilt pumps just do not flow enough.
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Old Aug 6, 2006 | 07:14 PM
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It should not "spin!" You should be able to turn it, but the clutch should make it stiff. Sounds like the clutch is bad.
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Old Aug 6, 2006 | 07:25 PM
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Clutch fan should be somewhat stiff and not free spin( if thats what it is doing). Dont also forget the basics and make sure your coolant level is full.
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Old Aug 6, 2006 | 10:46 PM
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Get the car warmed up, stop and open the hood, watch the fan while you turn off the ignition. A "good" fan/clutch system should only make a couple of turns after the engine stops. If it spins more than that, it's bad and probably why the engine runs hot....it isn't turning with the engine.
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