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serpentine belt tensioner S70

posted by  herbertcat on  Wed Mar 5 15:15 CST 2014
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last visit: Sat Oct 18 09:01 CST 2014
[RELATED]

upon startup, getting some 'battling mice' squeaking from front of engine, that subsides a bit with warmup, but does not go away entirely...suspect serpentine belt tensioner a/o idler pulley the cause of the racket...likely? how hard to change out? change as a set I'm guessin'...thanks all...








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    serpentine belt tensioner S70

    uid 51415's pic
    posted by  andybbrown on  Mon Mar 10 02:38 CST 2014
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    last visit: Fri Oct 24 06:08 CST 2014
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    You can buy a small thing like a glue stick but that is lube stick. So when engine is running hold it carefully against the belt and it will start to lube the rubber = no more squeaks and squeals








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      serpentine belt tensioner S70

      posted by  herbertcat on  Mon Mar 10 15:26 CST 2014
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      last visit: Sat Oct 18 09:01 CST 2014
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      not the belt squeaking, but the bearings in the tensioner/idler making noise...with 104k miles on these original parts, think it's time for a change...








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        serpentine belt tensioner S70

        posted by  KlausC on  Mon Mar 10 18:14 CST 2014
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        last visit: Fri Oct 24 10:15 CST 2014
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        Strange that the bearings are going out so soon, usually 200K or more is normal. Replacement is fairly straight forward, along with the idler pulley and a new belt while you are at it.

        --
        My back feels better when I sit in a Volvo seat








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          serpentine belt tensioner S70

          posted by  herbertcat on  Tue Mar 11 16:49 CST 2014
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          last visit: Sat Oct 18 09:01 CST 2014
          [RELATED]

          thanks for input Klaus...maybe I'm wrong about needing replacements? what else could be going on? alternator is in the vicinity...








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            serpentine belt tensioner S70

            posted by  KlausC on  Tue Mar 11 18:37 CST 2014
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            last visit: Fri Oct 24 10:15 CST 2014
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            Make a stethoscope using a long stick. With the engine idling and making noise, carefully place one end of the stick on the center of the roller, or anything that turns, and the other on the bone next to your ear. You will be able to determine where the noise is coming from.

            Watch out for the belt when you do this!
            --
            My back feels better when I sit in a Volvo seat








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    serpentine belt tensioner S70

    posted by  riverbend on  Wed Mar 5 18:50 CST 2014
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    last visit: Wed Oct 22 15:29 CST 2014
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    On our '04 V70 it is not a terrible job, a couple hours max. It would have been nice if they had left an extra inch between the engine and the wheel well.

    Greg







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      serpentine belt tensioner S70

      posted by  herbertcat on  Wed Mar 5 19:05 CST 2014
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      last visit: Sat Oct 18 09:01 CST 2014
      [RELATED]

      tensioner looks somewhat accessible, but idler a bit more buried...wondering if the 'box'(washer reservoir?) should/can be removed for a bit more access...or remove inner fender shield, as if doing timing belt...






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