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12-10-2020, 08:51 PM | #1 |
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Join Date: May 2010
Location: Maryville, TN
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Counterbalanced Crank with a harmonic balancer
There is another thread on the harmonic balancer from New Zealand. I do not want to hijack that thread so I started this one.
I have 2 engines that have counterbalanced cranks and they do not seem to have definite vibration ranges like some of the other posts indicated. I cannot think this through to see where the harmonic balancer would help. Anyone have any thoughts? Vic |
12-10-2020, 09:51 PM | #2 |
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Join Date: Dec 2019
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Re: Counterbalanced Crank with a harmonic balancer
Torsional vibration is reduced with a counterbalanced crankshaft but not eliminated..why not run the balancer
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12-10-2020, 10:26 PM | #3 |
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Location: Mint Hill, North Carolina
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Re: Counterbalanced Crank with a harmonic balancer
What other modifications did you do that could affect crank harmonics?
Lightened flywheel? |
12-10-2020, 10:53 PM | #4 |
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Location: Melbourne, Australia
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Re: Counterbalanced Crank with a harmonic balancer
2 extra main bearings?
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12-11-2020, 03:45 PM | #5 | |
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Re: Counterbalanced Crank with a harmonic balancer
Quote:
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12-12-2020, 01:09 PM | #6 |
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Re: Counterbalanced Crank with a harmonic balancer
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12-13-2020, 05:13 AM | #7 |
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Location: Auckland, New Zealand
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Re: Counterbalanced Crank with a harmonic balancer
You can hear torsional vibration with metal timing gears which shake together as you pass through the harmonic rev ranges.
SAJ in NZ |
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