[SOLVED] '05 TB - How do you loosen the fan clutch nut? - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum



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Go Back   Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum > 2002 - 2009 TrailBlazer/Envoy Tech > 02-09 Vortec 4.2L I-6 Engine and Drivetrain > Engine Tunes/Mods

Engine Tunes/Mods Performance Engine Tuning/Engine Modifications

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  #1  
Old 02-21-2011, 05:15 PM
05traleblazer 05traleblazer is offline
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'05 TB - How do you loosen the fan clutch nut?

I'm trying to replace the water pump on my '05 TB and for the life of me, can't find a way to loosen the fan clutch nut that threads on to the water pump shaft without the water pump shaft turning. How does everyone get past this step???? My pump is shot and I can't drive it until I get it replaced. Thanks!
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  #2  
Old 02-21-2011, 05:45 PM
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I use a heavy duty clutch tool and a big hammer.
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Old 02-21-2011, 05:46 PM
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plenty of threads on this as i read a few over the weekend while changing clutch on my neighbors truck but what i did was loosen 2 screws and wedged a long screwdriver in them for leverage and with a crescent wrench and some muscle power turned the nut counterclockwise and viola! it broke loose. good luck friend. hope you get running soon.
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Old 02-21-2011, 06:05 PM
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There is a huge thread on this, I think it was stickied also.
Try the chain and bolt method. It just requires 2 feet of chain bolted to the bracket above the alternator, and bolted to the pulley.
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Old 02-21-2011, 07:51 PM
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Some have good luck getting the bolt loose however I had to use the chain trick. It worked well, don’t get frustrated and plan on it taking more time then you think. I hear some say only took 30 minutes or so, it took me 3 hours soup to nuts but I am a little slow. BTW, there is a youtube on this.
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Old 02-21-2011, 08:10 PM
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Loosen this nut before removing belt.....that makes the pulley less likely to turn.....I've always had good success with a large crescent wrench & a hammer....
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Old 02-21-2011, 08:17 PM
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I rented tools from partsouce(autozone in the US)....complete wrench set in all different sizes meant for clutch fan removal and only took me about 15mins to remove the bolt....
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Old 02-21-2011, 11:18 PM
05traleblazer 05traleblazer is offline
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Quote:
Originally Posted by racer383s View Post
Loosen this nut before removing belt.....that makes the pulley less likely to turn.....I've always had good success with a large crescent wrench & a hammer....
Tried this but the belt won't hold the pulley tight enough and the pulley still spins.
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Old 02-21-2011, 11:19 PM
05traleblazer 05traleblazer is offline
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Quote:
Originally Posted by Ricky81 View Post
I rented tools from partsouce(autozone in the US)....complete wrench set in all different sizes meant for clutch fan removal and only took me about 15mins to remove the bolt....
Went there today and their removal kit consisted of a thin wrench of which my crescent wrench will do the very same job. If I can only hold the pulley tight enough......
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Old 02-21-2011, 11:25 PM
05traleblazer 05traleblazer is offline
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Quote:
Originally Posted by simplesimp View Post
plenty of threads on this as i read a few over the weekend while changing clutch on my neighbors truck but what i did was loosen 2 screws and wedged a long screwdriver in them for leverage and with a crescent wrench and some muscle power turned the nut counterclockwise and viola! it broke loose. good luck friend. hope you get running soon.
This sounds the most promising. Did you tighten the new water pump to fan clutch in the same manner? If so, any problems? Thanks!
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