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What does a idler pulley do?

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Old Apr 21, 2006 | 04:25 PM
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JCswoosher2
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What does a idler pulley do?
Quick question. I dont want to buy a pulley belt tensioner. So is a Idler pulley the same thing. So i could buy a 2.8 pulley and a bigger idler pulley and avoid buying a tensioner and still have no slip? is this correct? please help me out. thanks.
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Old Apr 21, 2006 | 04:30 PM
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just keeps tension on the drive belt so it does not slip off the other pulleys. No longer need to adjust manually the tension on a belt.
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Old Apr 21, 2006 | 04:32 PM
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so a idler pulley is all i have to buy to run a 2.8 and not have slippage?
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Old Apr 21, 2006 | 04:54 PM
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Yes, that is all.
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Old Apr 21, 2006 | 05:13 PM
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Stupid question of the week..........

Which one os the idler pulley? The one below the SC Pulley?
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Old Apr 21, 2006 | 05:35 PM
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and i dont believe anyone asked that.
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Old Apr 22, 2006 | 12:33 PM
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Originally Posted by BooSSted
Stupid question of the week..........

Which one os the idler pulley? The one below the SC Pulley?

Whichever one looks like it is not mounted directly to the block. It is mounted on a spring loaded arm.
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