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Truth Time...harmonic Balancer

Discussion in 'Intermediate CJ-5 and CJ-6 Tech' started by Chuck Tom, Feb 12, 2019.

  1. Feb 12, 2019
    Chuck Tom

    Chuck Tom New Member

    Arizona
    Joined:
    Jan 14, 2017
    Messages:
    32
    Okay guys. In another post, I asked if the rubber ring that's in the harmonic balancer was any good. Truth be told, I went over that son of with the angle grinder with a cup brush on. So with this new information what do you guys think?

    On another note, I did some searching on the interwebs and found a Dayco brand harmonic balancer that I'm taking a chance on coming in this Thursday.

    In the mean time, I have taken the original HB and I have the rubber ring soaking in this solution that keeps it protected and moisturized. Pics attached for your viewing. IMG_2940.jpg IMG_2941.jpg IMG_2943.jpg IMG_2944.jpg
     

    Attached Files:

  2. Feb 12, 2019
    OzFin

    OzFin Vintage Jeep Guy

    Michigan
    Joined:
    Jul 16, 2007
    Messages:
    487
    Unless you are seeing something up close in person that alarms you about the condition of the rubber I believe that your current balance is acceptable, the wire wheel cup doesn't appear to have inflicted any severe damage.

    Welcome to the obsessive compulsive club.
    Oz
     
    47v6 likes this.
  3. Feb 13, 2019 at 7:09 AM
    txtoller

    txtoller Sponsor Sponsor

    Weatherford, TX
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    May 28, 2014
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    315
    I see nothing wrong with that HB.
     
  4. Feb 13, 2019 at 12:06 PM
    Dphillip

    Dphillip Sponsor Sponsor

    Omaha NE
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    Nov 25, 2008
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    162
    No expert here but it’s my understanding that harmonic balancers can wear out and when they do can cause issues that are hard to diagnose. When I was building my engine the “Old Timer” that was helping me demanded I buy a new one which at the time only cost about 60 bucks. I would suggest if the new one you have ordered is correct and is a fair price to install it. Just my opinion, good luck.
     
    Last edited: Feb 15, 2019 at 5:33 PM
  5. Feb 13, 2019 at 3:21 PM
    OzFin

    OzFin Vintage Jeep Guy

    Michigan
    Joined:
    Jul 16, 2007
    Messages:
    487
    You could install the current balancer and roll the engine to number 1 top dead center then look at the timing marks to verify that it has not spun out of the proper indexing.

    You could position the outside "ring" so it is elevated and push real hard with the palm of your hand on the inside "ring" to see if the two rings move apart.

    You could take a prick punch and make 2 witness marks that align the two rings to reference later to see if anything has moved out of spec. Maybe do the same on the Dayco unit.

    When the Dayco unit arrives lay it on top of the original and compare the keyway and timing marks.

    Just in case...so there are no hard feelings, the obsessive compulsive remark i made was my attempt at humor.
    Keep the OCD under control or the next thing you know you will be aligning electrical outlet cover screws :whistle:
    Oz
     
  6. Feb 14, 2019 at 6:28 AM
    sterlclan

    sterlclan Member Sponsor

    exploring the...
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    Feb 21, 2009
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    Outlet screws go vertical
     
  7. Feb 14, 2019 at 7:06 AM
    Elevatorman

    Elevatorman New Member

    Winchester VA
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    Jan 16, 2019
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    I second that.
     
  8. Feb 14, 2019 at 11:06 AM
    Keys5a

    Keys5a Sponsor Sponsor

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    I've had the outer ring on a balancer "walk" on another engine. It was driving me nuts when the timing mark and TDC didn't correspond. As long as these marks still line up, and the ring isn't loose, its still likely good. If you have a fresh balancer, that is good piece-of-mind! Keep that old one, as it still looks good.
    -Donny
     
  9. Feb 15, 2019 at 10:44 AM
    mortten

    mortten Active Member

    Peninsula, Ohio
    Joined:
    Apr 17, 2006
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    1,183
    (y)
     
  10. Feb 15, 2019 at 11:37 AM
    tarry99

    tarry99 Member Sponsor

    Northern California
    Joined:
    Oct 29, 2012
    Messages:
    3,668
    TRUE.................Fact is old balancer technology is simply based on a rubber band surrounded by a hub........which is designed to cancel engine harmonics coming from the crankshaft , rotating assembly and clutch...in an attempt to help prevent crank breakage , bearing wear and enhance seal life....................Rubber as we all know is subject to deterioration from a number of factors such as use, age, oil , chemicals , weather and the list goes on........anyone that thinks they can look at a balancer and tell whether it's good or not has an exceptional talent........There are people that can spin it up and check it......but I doubt that would be cost effective vs just changing it!

    I believe you have already bought a replacement ? Install it and enjoy your vehicle.
     

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