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2004 S60 2.5T- Timing belt tensioner wiggles while running

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oragex
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Re: 2004 S60 2.5T- Timing belt tensioner wiggles while running

Post by oragex » Sat Jun 09, 2018 7:16 am

The avatar one is not mine, but indeed it was a stunning color called Maya Gold, think it was offered only on 2001-2002. Internet pictures don't do it justice, in real life it totally looks like a special color

It was featured in a few promotional videos

www.youtube.com/watch?v=jdELBMTYt6A

www.youtube.com/watch?v=16bKxt_gwLU


For the belt 1mm side ways movement it's not bad, how much is the tensioner hand actually wobbling, in comparison?


2003 2.4i S60 automatic 125k miles

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Re: 2004 S60 2.5T- Timing belt tensioner wiggles while running

Post by cn90 » Sat Jun 09, 2018 9:58 am

If you ever need info on VVT replacement, then the thread below has everything you need.
Each new Volvo VVT is about $280.

Search the web, but the experience of rebuiling the VVT hub is not good. This is why people buy new VVT hub.

Large oil leak after replacing exhaust camshaft (cvvt) seal - help needed!
https://volvoforums.com/forum/volvo-xc9 ... ded-81251/


2004 V70 2.5T 100K+
2005 XC90 2.5T 110K+

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Re: 2004 S60 2.5T- Timing belt tensioner wiggles while running

Post by Kara503 » Sat Jun 09, 2018 3:57 pm

Tensioner hand is wobbling the almost the width of the window it is supposed to be inside. The center of the hand is going roughly from one side of the window to just shy of the other. Maybe 5mm total travel? Hard to estimate down there.I have a video but am not sure how to post it?
Cn90, thanks for the info :) What would constitute replacement of the VVT hub? If I find that it is the source of the leak does that mean it needs to be replaced? Also, where would I be seeing leakage from on the hub? As of now Im not sure if I can tell the difference between leakage of the hub, solenoid, or cam seal. Though I think at this point I will be replacing both the solenoid gasket and cam seal regardless.



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Re: 2004 S60 2.5T- Timing belt tensioner wiggles while running

Post by jonesg » Sat Jun 09, 2018 4:13 pm

Kara503 wrote:
Sat Jun 09, 2018 3:57 pm
Tensioner hand is wobbling the almost the width of the window it is supposed to be inside. The center of the hand is going roughly from one side of the window to just shy of the other. Maybe 5mm total travel? Hard to estimate down there.I have a video but am not sure how to post it?
Cn90, thanks for the info :) What would constitute replacement of the VVT hub? If I find that it is the source of the leak does that mean it needs to be replaced? Also, where would I be seeing leakage from on the hub? As of now Im not sure if I can tell the difference between leakage of the hub, solenoid, or cam seal. Though I think at this point I will be replacing both the solenoid gasket and cam seal regardless.
It could be the vvt solenoid is reacting slow, if the cam sensor at the other end of the shaft is loose.
That could send the vvt hub nuts and produce the movement youre detecting at the tensioner.
Just another thing to check.
Mine was loose and threw a code.



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Kara503
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Re: 2004 S60 2.5T- Timing belt tensioner wiggles while running

Post by Kara503 » Sat Jun 09, 2018 4:50 pm

jonesg wrote:
Sat Jun 09, 2018 4:13 pm
Kara503 wrote:
Sat Jun 09, 2018 3:57 pm
Tensioner hand is wobbling the almost the width of the window it is supposed to be inside. The center of the hand is going roughly from one side of the window to just shy of the other. Maybe 5mm total travel? Hard to estimate down there.I have a video but am not sure how to post it?
Cn90, thanks for the info :) What would constitute replacement of the VVT hub? If I find that it is the source of the leak does that mean it needs to be replaced? Also, where would I be seeing leakage from on the hub? As of now Im not sure if I can tell the difference between leakage of the hub, solenoid, or cam seal. Though I think at this point I will be replacing both the solenoid gasket and cam seal regardless.
It could be the vvt solenoid is reacting slow, if the cam sensor at the other end of the shaft is loose.
That could send the vvt hub nuts and produce the movement youre detecting at the tensioner.
Just another thing to check.
Mine was loose and threw a code.
Would not have thought of that! Will make sure to check it once I have time to thoroughly investigate this. Thanks!!

That Maya Yellow is beautiful!! Will add to my dream fleet:
-96 850 Platinum Edition ( I own two!! :) )
-97 850 in burned orange metallic.... Not 100% certain on the actual name of the color
-00 V70R in Laser Blue
-02 s60 T5M in Maya Yellow
-07 v70 2.5t in white. Or get one repainted in the same color as the Platinum Editon :D



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Re: 2004 S60 2.5T- Timing belt tensioner wiggles while running

Post by mrbrian200 » Sun Jun 10, 2018 8:36 am

Whatever is causing the light misfire you mentioned is likely the culprit because varying inertia in the system will load the belt and make the tensioner wiggle with every miss. If you disconnect a fuel injector and observe the tensioner with a full tilt non-firing cylinder you should expect to observe the tensioner wiggle with every miss. I'm not ruling out the VVTs as others have suggested. But if that doesn't pan out with regard to solving your excessive wiggle problem, and I have my doubts, you'll need determine why the engine isn't running smoothly. Could be anything from a plugged injector to a bad spark plug or ignition coil, a sticky valve that momentarily torques the timing belt every time the cam lobe forces that valve open, up to and including low compression on a specific cylinder.

If for whatever reason you don't fix it, or determine the cost to fix more than you want to spend, then I would shorten the timing belt components and water pump service interval.



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