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Old 01-05-2010, 06:48 PM   #1 (permalink)
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Fan Clutch removal

How do you take the fan clutch off?? Is there a special tool you need?
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Old 01-06-2010, 08:20 AM   #2 (permalink)
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It can be done with an adjustable wrench and a hammer. Make use the belt is still on so it kind of holds the pully from spinning too much.
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Old 01-06-2010, 09:33 AM   #3 (permalink)
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Originally Posted by Rttoys View Post
It can be a mother f'er with an adjustable wrench and a hammer. Make use the belt is still on so it kind of holds the pully from spinning too much.
Slight change

Check with the local auto parts stores if they have a rent-a-tool program. I got lucky and 1 out of the 12 parts stores had the tool last lime I had to replace a water pump (5.3L gas, but same style clutch as the dmax)

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Old 01-06-2010, 09:43 AM   #4 (permalink)
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A hammer and chisel works too
04.5 LLY CCSB, Edge Attitude w/ Juice, LBZ MP
69 Camaro 350 muncie 4spd
86 Iroc-Z Camaro 355 5spd
94 Camaro Z28 LT1 6spd
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Old 01-06-2010, 09:03 PM   #5 (permalink)
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You’ll need a large crescent wrench or a 1.5” open end wrench along with a strap wrench or some other way to keep the water pump pulley stationary while you break loose the huge nut. I purchased 2 strap wrenches from Lowes for $20 and used the larger of the two to hold the pulley in place. I lodged it underneath the A/C compressor for leverage. Hit the wrench hard and it will break free.
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Old 01-06-2010, 09:25 PM   #6 (permalink)
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BTW, the water pump is gear driven. But, the use of a hammer and chisel on the edge of the fan nut works well. Hit it a few times and then tighten the belt with a breaker bar in the tensioner (you'll find a 1/2 in breaker will fit perfect) and use yer BFW on the fan and it should come off with relatively little torque.
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Old 01-07-2010, 12:34 AM   #7 (permalink)
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Used an air chisel on mine, followed by a pipe wrench (only thing that would open up enough). It is right hand thread, put chisel on corner of nut, hammered away for 20 sec, then put the wrench on it. It turned under the weight of the wrench. Put back on by just using the wrench. Add a drop of blue locktite to keep it from backing off.
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