Removing fan assy. - Ford Powerstroke Diesel Forum
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Old 01-06-2010, 10:18 AM
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Removing fan assy.

Does anyone have a trick or method they use to hold the water pump pulley when turning the large fan nut when removing the fan? I will be using a Matco type removing wrench that uses a air chisel to loosen the nut but in the past I have had to try to hold the pulley because even with the belt still on it wants to turn when getting the nut loose, Thanks, Fred
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Old 01-06-2010, 10:27 AM
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Use a Fan Clutch wrench on the 4 bolts on the water pump pulley, then use a big pipe wrench on the fan nut itself. It's standard right hand thread. Having a friend hold the fan clutch wrench helps out a lot.
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Old 01-06-2010, 02:06 PM
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Thanks Marty!
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Old 01-06-2010, 05:05 PM
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This particular wrench only fits the large nut and has nothing to hold the pulley nuts with....maybe it will bust loose without holding the pulley seperately......if I'm lucky......Fred
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Old 01-06-2010, 05:41 PM
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I usually tap the big fan nut with a hammer prior to trying to break it loose. It has never failed me. Also put a box end wrench on one of the pulley bolts and hold with one hand while pushing with the other....Its a pain in the ars!
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Old 01-06-2010, 06:44 PM
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At least you are working on a pickup truck. The vans don't even have enough room to get 2 tools in there at the same time, the fan clutch shaft is about 1.5" shorter.

I think that the tool the original poster is using should have come with a holding wrench as well as the wrench for the actual clutch.
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Old 01-06-2010, 07:06 PM
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Autozone or Advance will have a clutch tool you can rent. You get your money back after you return it.
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Old 01-06-2010, 07:26 PM
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I always put an old belt around the pulley, then have someone pull on the belt, if it goes at least 3/4 the way around it will hold the hub. But you have to hold it tight
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Old 01-06-2010, 07:36 PM
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If you have the one that uses the air chisel you will just have to keep your belt on and tight. They work slicker than $hit. I love mine. I use it on anything that it fits.
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Old 01-07-2010, 06:58 AM
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I had to end up putting a large screwdriver between one of the pulley bolts and fan collar and hit with the air chisel/Mac wrench removing it....it would still spin with the belt on and no retaining of the pulley....came loose instantly after retaining the pulley.....Thanks to all for your suggestions, Fred
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