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post #1 of (permalink) Old 05-17-2001, 07:56 PM Thread Starter
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Running Hot...... Fan Clutch question..

Ok.... my running hot problem continues....

Thermostat good
Radiator cap good
Radiator good

Put on a spare fan clutch and still running hot. But I'm not 100% sure the spare fan clutch is good.

With the engine hot or cold, should I be able to stop the fan with my hand? There is not a lot of resistance. Is there a way to tell if the fan clutch is bad?

Or is there a way to the clutch from spinning all together?

This running hot problem is starting to get the best of me! And it's pi$$ing me off!

Jay

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post #2 of (permalink) Old 05-17-2001, 08:11 PM
 
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Re: Running Hot...... Fan Clutch question..

There shouldn't be any excess "play" in the fan. Cold the fan should spin freely but warm you should feel some drag when you turn it by hand.

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post #3 of (permalink) Old 05-17-2001, 08:13 PM
 
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Re: Running Hot...... Fan Clutch question..

Are you sure it's not the gauge??

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post #4 of (permalink) Old 05-17-2001, 08:18 PM Thread Starter
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Re: Running Hot...... Fan Clutch question..

There is no "play" in either fan (original or spare). There was very little difference in resistance between when the engine was cold or hot.

The other day when the gauge was showing hot ( 3/4 ) I pulled off the radiator cap and put a thermometer in the radiator. It was reading around 200*. So I know the gauge is working.



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post #5 of (permalink) Old 05-17-2001, 09:16 PM
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Re: Running Hot...... Fan Clutch question..

Could you have a leaking freeze plug or cracked head! Take to a Rad. shop and have them run some test to see whats up with it.

QuadZuki,87 spoa,33"wild countrys
post #6 of (permalink) Old 05-17-2001, 09:23 PM Thread Starter
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Re: Running Hot...... Fan Clutch question..

I'm not losing coolant.

I don't have the $ to spend at a radiator shop, plus I don't know one that I trust.



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post #7 of (permalink) Old 05-17-2001, 10:52 PM
 
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Re: Running Hot...... Fan Clutch question..

what are they supposed to run at? Mine runs from half to almost 3/4 on a hot day according to the stock gauge.

87 silver sami,30x9.50's, no lift yet, accel 8mm wires, $10 intake, $20 exhaust. :-)
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post #8 of (permalink) Old 05-17-2001, 11:20 PM
 
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Re: Running Hot...... Fan Clutch question..

Does it run hot when idling or slow driving? highway speeds?

87 Samurai- 5.12's locked up,4340 front,hybrid rear,4.16's,P/S.,Toy. carb.,DT header, 33's, 2" exhaust and Durabak inside and out.
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post #9 of (permalink) Old 05-17-2001, 11:34 PM
 
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Re: Running Hot...... Fan Clutch question..

Found your previous post. Is this still the original 145,000 mile radiator? I believe in the previous post you said it mainly runs hot at highway speed. I have had several of my hotshot trucks exibit the same symptoms. 9 out of 10 times the radiator needs to be rodded out. The trucks runs fairly normal while idling along and heats up when under a load or at highway speed? Some times a radiator flush will work, but around here I can get it rodded out for 30.00, so I just do that.

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post #10 of (permalink) Old 05-18-2001, 12:33 AM
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Re: Running Hot...... Fan Clutch question..

Make sure your conection to the sender is good. If it is remove the sender. If only a drible of water comes out it's pluged, use a wire to clear the hole.

This worked for a buddy's suk. Crud builds up on the end of the sender and it dosen't read the true water temp. A flush only helped a little for him.

Try this first, it's cheap.

'88 Suk, 1.3L, 2"exhaust,carb mod, 235/75 Buckshot mudders,'87 for parts.
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