Thread: idler pulley
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Old Jul 14, 2015 | 12:17 PM
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onehundred80
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From: Ontario
Default Re: idler pulley
Originally Posted by RED DOG

To answer your second question . . . No, you put a 15mm socket on the nut that holds the pulley on (the nut around that torx head bolt in the center of the pulley). Using gentle pressure counterclockwise release the tension to slip the serpentine belt on or off. While you CAN use that torx head bolt in the center, most members feel that it is too small and you risk damaging or breaking the bolt. I've been there done that. Use the 15mm pulley nut and avoid creating another problem.
I have used the Torx socket and it worked just fine, using the nut means turning it in the direction of loosening the bolt. Probably it will not loosen the bolt but if it isn't on tight enough you are asking for trouble. But do as you want as both methods work.
Problems arose when people used a Torx socket that was too large and stripped the corners.
Torx fasteners require the use of the exact size removal bit or socket.
 
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