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Do I need a Harmonic Balancer

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Old Dec 5, 2023 | 02:15 PM
  #1  
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Default Do I need a Harmonic Balancer

2007 Harmonic Balancer

2007 Corvette 23000 miles
Car is riding fine. No noise. I just decided to look at it today.

I have provided a video.

If needed, what brand and model number should I buy, and from what vendor?

Thank you.
Attached Files
File Type: mov
IMG_9560.mov (15.19 MB, 162 views)

Last edited by ValenciaOrange; Dec 5, 2023 at 02:28 PM.
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Old Dec 6, 2023 | 02:01 AM
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I vote Yes
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Old Dec 6, 2023 | 09:45 AM
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I also vote yes. That's how mine looked and I just finished replacing it
I used a Powerbond PB1117N from Amazon for 100 bucks but there are several other options.
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Old Dec 6, 2023 | 10:18 AM
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My 2006 had that slight wobble when I purchased it at 8K miles. I kept an eye on it over the many years with a straight edge, just to assure that the inner to outer race wasn't creeping in or out.
I now have 124K miles on that same HB, and to date, never had an issue with the HB, belts, or noise.

Your call on either to replace it or not.
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Old Dec 6, 2023 | 08:31 PM
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Good advice to take an accurate measurement, not a visual inspection of something with darker and lighter coloring. You may find that there is very little real movement. I have wondered if something like a brake pad indicator might be added to squeak when it got out of the intended plane.
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Old Dec 7, 2023 | 05:31 AM
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Originally Posted by 4SUMERZ
My 2006 had that slight wobble when I purchased it at 8K miles. I kept an eye on it over the many years with a straight edge, just to assure that the inner to outer race wasn't creeping in or out.
I now have 124K miles on that same HB, and to date, never had an issue with the HB, belts, or noise.

Your call on either to replace it or not.
Very good point, as I read all these harmonic balancer posts I have to wonder how many were swapped out prematurely. Also, how many had a failure due to engine mods.
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Old Dec 7, 2023 | 07:05 AM
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Replace it. That's going on 17 year old rubber holding that outer part of the balancer on, spinning up to 6000+ rpms.
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Old Dec 7, 2023 | 07:06 AM
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Originally Posted by 4SUMERZ
My 2006 had that slight wobble when I purchased it at 8K miles. I kept an eye on it over the many years with a straight edge, just to assure that the inner to outer race wasn't creeping in or out.
I now have 124K miles on that same HB, and to date, never had an issue with the HB, belts, or noise.

Your call on either to replace it or not.
That's amazing!
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Old Dec 7, 2023 | 07:36 AM
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I would say replace it and while you are down there, put a cam in there as well.
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Old Dec 7, 2023 | 04:41 PM
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Might as well start planning to replace it. It's not a question of if but when.
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Old Dec 7, 2023 | 05:48 PM
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My 2000 C5 had a slight wobble when new.131k miles later,still has a slight wobble on the same balancer.
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Old Dec 8, 2023 | 07:11 AM
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Oh yes, it needs a new one.

A bad balancer can wipe out your main bearings of the engine. Replace it as soon as you can.
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Old Dec 10, 2023 | 05:32 PM
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Originally Posted by Orion2011
Might as well start planning to replace it. It's not a question of if but when.
Nope! Not true.

Tom
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Old Dec 14, 2023 | 09:58 PM
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Mine went on my 98 Pace Car with 25k on the clock. Belt squeal was bad and making a lot of noise with a slight wobble. It spun itself back in to the timing cover without Damaging the oil gasket and which I replaced along with all the pulleys, belts and a water pump. Parts and labor for all of it $1700. Listen for belt noise, that will be your first indicator. I got 141,000 out of my LS in my Tahoe without an issue and it’s nearly identical. They all will eventually go, how long is the question. The 98 sits most of the year, my Tahoe was my daily. Maybe it’s from lack of use. Just my 2 cents.
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Old Dec 15, 2023 | 02:05 PM
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The problem on the C6 is you have to remove the steering rack to remove the harmonic balancer. It's quite a bit of work.
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Old Dec 16, 2023 | 08:34 AM
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Originally Posted by Vito.A
The problem on the C6 is you have to remove the steering rack to remove the harmonic balancer. It's quite a bit of work.
or lower the cradle
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