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Harmonic balancer

  #1  
Old 03-25-2019, 12:55 PM
Gil
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Default Harmonic balancer

Will a bad balancer cause a rumble noise and vibration that you can feel like it's coming from tranny? Drove car this weekend for about 100 miles and once I got up to about 60-65 mph, I can her a humming noise and feel some vibration. Any thoughts? 63 Fairlane 260 motor.

Thanks,
 
  #2  
Old 03-31-2019, 07:49 AM
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A defective vibration dampener (balancer) would not produce any type hum , but worn bearings in the differential can..Check the u-joints too.
 
  #3  
Old 04-01-2019, 10:06 AM
Gil
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Hey hanky,

I changed the balancer this weekend, it was pretty beat up, the rubber was cracked and missing in some areas. It did help in making the engine idle smoother and did reduce some freeway vibration I mentioned. I do still hear a slight hum so I'll check out the bearings and u joints as you advice.

Thanks,
 
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