S60: Timing belt tracking off after new belt?
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    1. #1
      Junior Member
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      Sep 2020
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      S60: Timing belt tracking off after new belt?

      I have just replaced the timing belt, idler and tensioner pulley on my 2008 Volvo S60. However, I noticed that the new belt is tracking straight, but on the inner edge of the gears towards to the engine instead of riding at the center of the cam gears.

      I have a tried adjusting the tensioner to see if it had any influence on the belt's position, but nothing changed. The original Volvo belt (Gates) was centered on the cam gears.

      Is this normal when installing new belt, idler and tensioner pulley? Could it be that all newer belts initially run closer toward the engine than the old belts?


      Another thing, how much should the tensioner arm move when the endine is idling?
      Last edited by tomchr; 10-11-2020 at 06:05 PM.

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    3. #2
      Junior Member Orange's Avatar
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      Which brand is the tensioner or the belt kit ? My feeling is a less good quality tensioner - including not adjusting it correctly or overtightening the bolt (15ft-lb) can cause either belt running on the edge of the cam gears or waving, or shaking tensioner needle. When everything is set correctly with quality tensioner, the belt should indeed run almost on the center of the cam gears without any side movement and the tens needle is perfectly stable. Also, if the belt is installed without removing the crank pulley - and it's got twisted with force when passing it, it may damage the fibers inside. Also, less probable just make sure you got the correct tensioner model for the mid2004-2009 engines

    4. #3
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      A small amount of movement in the tensioner arm at idle is normal from what I've observed. If it's moving erratically, that could be a problem.
      If the belt is closer to the inner or outer edge of the pulleys, that's not necessarily a problem. As long as it's not over the edge or moving around, I wouldn't worry about it.
      Typically the belts ride on the outer edge of the cam gears if not perfectly centered. Do you have a picture of it?

      What brand belt and tensioner did you install?
      2000 V70R Venetian Red/Charcoal M56 Swapped 200k
      2003 S60 2.4T Silver/Black 118k
      1991 944 Turbo B230FT/AW70 175k
      1992 245 crusty roller/driveway ornament/eventual V8 swap 249k
      2007 XC90 V8 AWD Sport Titanium Grey/Black 174k
      1999 BMW 528iT Alpine White/Sand Beige 246k
      2001 Mercury Mountaineer 5.0 junk hauler 211k
      2001 Miata with the wrong transmission 134k
      Sold-
      1998 V70 GLT Black/Beige 193k
      1998 S90- Silver/Gray 207k
      1995 850 GLT Tropic Green... crushed
      1993 944 B230F/AW71L 221k
      2000 S70 GLT Silver/Taupe 253k
      2001 S60 2.4T Black/Black 230k
      1988 744 Turbo M46 Beige Metallic/Beige 188k

      Need used parts? PM me!

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