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Thread: TD5 harmonic balancer failure (video)

  1. 28th May 2014, 04:10 PM #1
    Mattblack59bus's Avatar
    Mattblack59bus
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    TD5 harmonic balancer failure (video)

    How long do you think this will hold on?

    TD5 Discovery 2 Harmonic Balancer Failure - YouTube

    I initially thought I had a noisy tappet on an injector, a broken hydraulic lifter or something about to let go in the bottom end.

    The noise was there at idle all the way to 100 kph on the highway, hot or cold, it would occasionally quieten, I attempted to listen with a long screwdriver stethoscope but i couldn't locate the noise, I finally removed the serpentine belt and the noise stopped, all the pulleys seemed ok, but I was surprised at the play in the harmonic balancer. I know I'm going to have to replace it soon but how bad do they have to be before they remove themselves in a bad way?

    Cheers
    Marc
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  2. 28th May 2014, 05:00 PM #2
    Davetd5's Avatar
    Davetd5
    Davetd5 is offline Master Supporter
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    Mate, I wouldn't drive that to the end of the street! But that's just me...
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  3. 28th May 2014, 05:46 PM #3
    kelvo
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    It's not just you Davetd5, no way would I run that engine having seen the movement on the HB
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  4. 28th May 2014, 06:12 PM #4
    trev
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    harmonic balancer

    Replace sooner than later,if it lets go bigger cost than replacement.
    suggest genuine only.

    Trev.
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  5. 28th May 2014, 06:27 PM #5
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    Toxic_Avenger
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    Quote Originally Posted by Mattblack59bus View Post
    How long do you think this will hold on?
    Mate, I think it's already let go!
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  6. 28th May 2014, 07:30 PM #6
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    SPROVER
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    I wouldn't be driving that either. It's about ready to fly off and do a lot of damage.
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  7. 28th May 2014, 09:44 PM #7
    schuy1 Guest
    How long? not much longer than it takes to do that vid and post here
    Cheers Scott
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  8. 29th May 2014, 02:42 AM #8
    Thingy
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    Might be worth having a look at Ross Tuffbond Harmonic Balancers & Crank Pulley Damper: Automotive, Bus & Truck Components. New and Rebuilt. There are a few threads about them.
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