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It's Always Something..... Crankshaft Chirp

Discussion in 'Intermediate CJ-5/6/7/8' started by rejeep, Jul 23, 2016.

  1. Jul 23, 2016
    rejeep

    rejeep Well-Known Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Rochester, NY
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    My 5 year old actually noticed it the other day.
    Slight chirping sound coming from the crankshaft pulley... Took all belts off to eliminate accessories and he was right... Deff some noise coming from the crank.

    Not with the jeep this weekend, first order I think will be to check torque on pulley and crank bolt.. Anybody ever run into this before?
     
    rejeep, Jul 23, 2016
    #1
  2. Jul 23, 2016
    rejeep

    rejeep Well-Known Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Rochester, NY
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    Maybe this should be moved to inter tech....

    Sorry posted in wrong forum
     
    rejeep, Jul 23, 2016
    #2
  3. Jul 23, 2016
    Howard Eisenhauer

    Howard Eisenhauer Administrator Staff Member

    Tantallon, Nova...
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    Moved.

    What engine?

    H.
     
    Howard Eisenhauer, Jul 23, 2016
    #3
  4. Jul 23, 2016
    rejeep

    rejeep Well-Known Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Rochester, NY
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    Amc360
     
    rejeep, Jul 23, 2016
    #4
  5. Jul 23, 2016
    Howard Eisenhauer

    Howard Eisenhauer Administrator Staff Member

    Tantallon, Nova...
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    Moved again :)

    H.
     
    Howard Eisenhauer, Jul 23, 2016
    #5
  6. Jul 24, 2016
    jeepcj

    jeepcj Member

    cincy, Ohio
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    Where was this thread moved to. I would like to follow it
     
    jeepcj, Jul 24, 2016
    #6
  7. Jul 24, 2016
    Howard Eisenhauer

    Howard Eisenhauer Administrator Staff Member

    Tantallon, Nova...
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    Intermediate tech.

    H.
     
    Howard Eisenhauer, Jul 24, 2016
    #7
  8. Jul 24, 2016
    rejeep

    rejeep Well-Known Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Rochester, NY
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    A short clip of what exactly I'm talking about

    [​IMG]
     
    rejeep, Jul 24, 2016
    #8
  9. Jul 24, 2016
    sterlclan

    sterlclan Member 2022 Sponsor

    exploring the...
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    no good on video...moved or renamed by owner
     
    sterlclan, Jul 24, 2016
    #9
  10. Jul 24, 2016
    rejeep

    rejeep Well-Known Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Rochester, NY
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    uploaded from and working on my phone...

    I thought I was remotely tech savvy this morning (y)
     
    rejeep, Jul 24, 2016
    #10
  11. Jul 24, 2016
    ITLKSEZ

    ITLKSEZ Hope for the best, prepare for the worst

    Spokane Valley, WA
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    I don't hear a chirp.
    Is it every revolution? (Directly related to the crank)
    Or every other revolution? (Cam, top end, exhaust tick...)
     
    ITLKSEZ, Jul 24, 2016
    #11
  12. Jul 24, 2016
    Twin2

    Twin2 not him 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Virginia Beach, VA
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    do you have a points distributor
     
    Twin2, Jul 24, 2016
    #12
  13. Jul 26, 2016
    rejeep

    rejeep Well-Known Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Rochester, NY
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    ok, this might have been the simplest fix in the history of the world...

    All bolts seems to be tight..
    hard to check crank bolt with radiator in the way..

    checked oil level... was a good quart low...
    filled and let it sit over the weekend.. Took the truck out yesterday and noise stopped.
    running it today and so far, so good...
     
    rejeep, Jul 26, 2016
    #13
  14. Jul 26, 2016
    rejeep

    rejeep Well-Known Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Rochester, NY
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    and after a mornings worth of driving the sound is back... :mad:
     
    rejeep, Jul 26, 2016
    #14
  15. Jul 26, 2016
    rejeep

    rejeep Well-Known Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Rochester, NY
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    Spoke to DamperDr.. (where I got my balancer)

    head guy is going to do some head scratching and get back to me..
    took this form their website..


    REBUILT HARMONIC BALANCERS
    Rebuilt harmonic balancers have a refundable core value. All rebuilt harmonic balancers are first disassembled and cleaned. The parts are then inspected for defects, including stripped bolt holes and worn or cracked keyways and hubs. Harmonic balancers are then prepared for assembly. Timing marks are set to the factory specification by using a laser aligning process. After the timing marks are set, the harmonic balancers are then injected with a high-temperature, high-strength silicone rubber that is then platinum cured for a extremely strong hold. The new silicone rubber is capable of withstanding temperature in excess of 450 degrees, and will hold up against pressures as high as 770 psi. Rebuilt harmonic balancers carry a 3 year limited warranty
     
    rejeep, Jul 26, 2016
    #15
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