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Fan clutch testing 700 1991

posted by  Allanwayne on  Sun Jun 12 02:00 CST 2005
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last visit: Sun Jul 8 15:05 CST 2012
[RELATED]

Hello.
From previous posts and the FAQ I have replaced the fan clutch and tested it as follows:

Blocked air flow acroos rad with cardboard, disconnected electric cooling fan and ran car at 2500 rpm. Temp climbs but only to the midpoint (where it always is when running), and stayed there.

I did not hear any roar sound at start up or any time after to indicate the fan had engaged.

Immediately after shutdown, I was able to rotate the fan blades on the shaft in both directions with little or no resistance. As I understand it, the temperature sensor on the clutch should prevent free wheeling from occuring.

So far, this clutch seems no different (looks newer though) from the old one.

Am I missing something, or did I buy a defective part?






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