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Need to change my Fan Clutch and need to know if anyone knows what size the wrench is for the WaterPump to hold pump in place while I spin the nut on the Fan Clutch. And is it right or left thread ?
Thanks
 

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I just used a large pair of channel lock pliers to hold the nuts on the pulley. The nut spins to the right.
 

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Yep, left hand thread, clockwise is off. Nut is 1-7/16
Even though I have the proper homemade tools shown below I still always use a long drift (piece of rebar works too) and whack the right side of the nut flat with a hand sledge... hard.
Holes in tool slip over the bolt heads that hold the pulley to the bearing

 

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Clamp a pair of vice grips on it and then use a air hammer with a pickle fork makes quick work of it.
 
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