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Chrysler engine vibration question

Discussion in 'The Hokey Ass Message Board' started by Carnuba, Oct 8, 2012.

  1. Carnuba
    Joined: Mar 19, 2012
    Posts: 430

    Carnuba
    BANNED

    I have a slightly newer 440 in my 64 Fury that has a pretty good vibration when I neutral rev it. I'm told the narrower 1" balancer (which is what is on this engine) goes on a steel crank. And that combo should have no balance weights on the torque converter, but this one does. So, before I cut the weights off, is there an easy way to make sure I have a steel crank still in it? Thank you
     
    Last edited: Oct 8, 2012
  2. If it is a steel crank it should have the thinner uniform shaped balancer.The correct torque converter should have no external weights on it,thus your vibration.I'm not sure if you can just remove the weights or if you have to change the converter out.
     
  3. Steel cranks have a wide (1/4-3/8") flat parting line. Cast cranks have a narrow, sharp parting line. Look on the flange where the flexplate bolts on, or you may have to remove the pan to be sure.

    Cast
    [​IMG]

    Forged
    [​IMG]
     
  4. Carnuba
    Joined: Mar 19, 2012
    Posts: 430

    Carnuba
    BANNED

    Before I remove the weights I need to be certain it's a steel crank. It could be a cast crank and it's the balancer that's wrong and not the converter

    I understand how to tell with the crank out. This car's all together
     

  5. How long has it been vibrating?
    Start with the basics---if it has a belt driven fan(especially with a thermal clutch),try removing it & see if it stops the vibration.
     
  6. Bert Kollar
    Joined: Jan 10, 2007
    Posts: 1,002

    Bert Kollar
    Member

    the Chrysler manual says all 440 engines were cast crankshafts therefore externally balanced has the crank been changed or the torque converter?
     
  7. Carnuba
    Joined: Mar 19, 2012
    Posts: 430

    Carnuba
    BANNED

    I just got the car. No past info attached
     
  8. Carnuba
    Joined: Mar 19, 2012
    Posts: 430

    Carnuba
    BANNED

    That part for sure's incorrect
     
  9. Thats not true the early ones up to roughly 1973 ish were forged steel cranks,the later ones were all cast.
    My bad I thought you knew yours was a steel crank motor,yes you need to find that out first.
     
  10. Carnuba
    Joined: Mar 19, 2012
    Posts: 430

    Carnuba
    BANNED

    Well, it's supposed to be a steel crank motor. I'm now trying to make sure it still has the steel crank before I grind the weights off the converter....(which I'm already in the process of doing-I hope I'm not wasting my time doing it)
     
  11. saltflats
    Joined: Aug 14, 2007
    Posts: 10,551

    saltflats
    Member
    from Missouri

    just mark where the weight went so you can put it back on if needed
     
  12. Carnuba
    Joined: Mar 19, 2012
    Posts: 430

    Carnuba
    BANNED

    Cut the weights-FIXED
     
  13. Love a easy fix!!!
     
  14. Dane
    Joined: May 6, 2010
    Posts: 1,351

    Dane
    Member
    from Soquel, CA

    Some required reading if you run Big Block Mopars-

    http://www.moparts.org/Tech/Archive/bb/22.html

    http://www.moparts.org/Tech/Archive/bb/50.html

    http://www.moparts.org/Tech/Archive/bb/19.html

    http://www.moparts.org/Tech/Archive/bb/20.html

    http://www.moparts.org/Tech/Archive/bb/27.html


    http://www.moparaction.com/tech/quest/440_TREASURE_HUNT.html

    http://www.moparaction.com/Tech/quest/SLOW_CURVE.html

    http://www.moparaction.com/Tech/questions/CASTING_FORGERY.html

    http://www.moparaction.com/Tech/quest1/WHATS_SHAKIN.html

    http://www.moparaction.com/Tech/questions/SHAKER_440.html


    http://www.moparaction.com/tech/index.html

    http://www.moparts.org/Tech/
     

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