Viscous fan clutch bolt! - Defender Source
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  #1  
Old August 19th, 2017, 08:34 PM
bobjackson
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Bob
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Viscous fan clutch bolt!

After an hour of messing with the viscous fan clutch bolt, any help to keep the pulleys from spinning while trying to knock the nut loose? Yes, working at it knowing itís a reverse thread. Even tried chisel on the edge of the nut. Not budging for me.

Those of you who have replace, what are you doing to keep the pulleys stationary??

Thanks for the help.
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  #2  
Old August 19th, 2017, 08:35 PM
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Mark
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Impact gun spins it right off, but protect yourself from the fan!
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Old August 19th, 2017, 09:47 PM
Naplm00
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Matthew
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https://www.zoro.com/irwin-vise-grip...RoCqbAQAvD_BwE

For the super stubborn


https://www.walmart.com/ip/Craftsman...&wl13=&veh=sem

For the semi stubborn



Hold the water pump pulley with either ,place correct size wrench on nut and tap it with a hammer. Bingo Everytime

Be aware the chain type will scratch that pulley
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Old August 20th, 2017, 08:33 PM
bobjackson
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Thanks Matthew - may have to look at one of those.
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Old August 21st, 2017, 10:03 AM
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Keith Armstrong
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I fought with this thing for years...until I bought a cheap open end 34mm or whatever it is and use in along with an old piece of garage door opener drop arm.

Drill out the hole in the bit of metal so it fits over the bolt head on the water pump pulley (stops it turning when held against the side of the pulley) and grab the Big Nut with the wrench.

Once in a while I'll have to resort to the dead blow hammer, but usually just old guy muscle will take things apart.
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Old August 26th, 2017, 01:48 PM
bobjackson
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Figured I post an update since many of us deal with this bolt in different ways. For me, getting a decent wrench with some length for leverage. Came right out.

Thanks for the help.
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