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Fan Clutch inerts... what makes this tick 200 1989

posted by  greg_mustang on  Mon Mar 14 07:20 CST 2005
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last visit: Sat May 10 07:26 CST 2014
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hi All,

My fan clutch seemed poor last year, it would not tighten up significantly when hot. I got a spare from a junker. I installed it this weekend, but this one seems maybe even more loose than my original...

OK so they have a heat sensative coil at the front, which turns with temperature increase and turns a center shaft which *apparently* should tighten the clutch. Both the ones I have have intact coils. I put a torch to one coil, in turned about half a turn as expected. The clutch did not tighten up.

Both clutches are very *damped* when I turn them by hand, they are in no means loose, it's just that they don;t tighten up any more. I took off one coil, and verified that the total turn amount of the shaft seems to be about 1/2 turn, hence it is turning to max capacity, just not tighteneing up the clutch. So problem is inside.

Q: Are these repairable? Is there any way to open? The screws all stripped, so they would need drilling.

Anyone have any advice, other than electr fan, or buy a new unit...

Let me know.

Greg Mustang
Montreal
Canada





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