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Belt Tensioner

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Old Jan 18, 2010 | 01:07 AM
  #1  
429PI IN 75 f-100's Avatar
429PI IN 75 f-100
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From: Westby, MT
Belt Tensioner

I've had problems with my belts going bad in my truck way before they should be going bad and get a hell of a squeak in them, suspect that it is my tension-er it has one hell of a bounce to it while the truck is idling is this normal or not. Getting tired of replacing belts at around fifty to sixty bucks at a time
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Old Jan 18, 2010 | 01:14 AM
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My belt and tensioner do not move while idling. Perhaps it is time to replace your tensioner. How hard is it to release the tension on the belt?

Check all of your other pulleys to make sure none of them are jumping around which could make the tensioner jump around.
 
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Old Jan 18, 2010 | 01:21 AM
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also make sure you are getting the correct belt with the right number of ribs and length on it. the parts store belt that was listed for my truck was wrong and i had to match one up. also with your tensioner moving around i dont think thats your problem. usually they seize up and dont move. its possible there isnt enough tension on it though. id check all your pulleys and make sure they arent loose and that they spin freely. your tensioner moving around makes me think a different pulley is the problem. like sam said how is the tension when you change belts? does it stick or move smoothly?
 
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Old Jan 18, 2010 | 05:44 AM
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My tensioner does not move either.
 
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Old Jan 18, 2010 | 07:27 AM
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mine was when the pulley on the lower left lost it's bearings (pulley with the bolt thru the center of it into the block) I also recall there may have been some movement when my vacuum pump started going south as well.....
 
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Old Jan 18, 2010 | 11:38 AM
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The tensioner moves smoothly when replacing the belt and doesn't stick, haven't checked the other pulleys when the belt has been off yet
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Old Jan 18, 2010 | 12:33 PM
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Originally Posted by Muktown
also make sure you are getting the correct belt with the right number of ribs and length on it. the parts store belt that was listed for my truck was wrong and i had to match one up. also with your tensioner moving around i dont think thats your problem. usually they seize up and dont move. its possible there isnt enough tension on it though. id check all your pulleys and make sure they arent loose and that they spin freely. your tensioner moving around makes me think a different pulley is the problem. like sam said how is the tension when you change belts? does it stick or move smoothly?
When i switched out my altenator the new one was 2 ribs smaller and by the time i went back to the auto store my old one was already sent back so now im running a 6 rib chevy 454 belt that works just fine unlike most chevy products.
 
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Old Jan 20, 2010 | 02:00 AM
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Did you get a chance to check your other pulleys yet?
 
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Old Jan 20, 2010 | 09:47 PM
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Should be able to this soon bit busy in college we have tractor rebuild class right now and are expected to work on the tractor as much as possible be about 540 miles form hope doesn't help in repairs much
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Old Jan 20, 2010 | 10:55 PM
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Ok. Just curious to see the outcome of this one.
 
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Old Feb 12, 2010 | 06:46 AM
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Finally got the truck in the shop and discovered that the idler between the alt and the ac compressor has a about a 1/8 inch of play in it, sorry about the long gap between any more info
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