TwinTurbo.NET: Nissan 300ZX forum - Re: Re: Interesting rod bearing wear pattern.....
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Subject Re: Re: Interesting rod bearing wear pattern.....
     
Posted by kuah@splparts.com on June 30, 2004 at 9:56 AM
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In Reply To Re: Interesting rod bearing wear pattern..... posted by Renner on June 30, 2004 at 07:50 AM
     
Message Great, that was good info... but going back to your first post, when you said the 4th harmonic, is that the torsional harmonics? I don't think any of the traverse vibration modes are damped except through the main bearings. As I understand it, the forces that arise from imbalances from the 4th torsional harmonic (the driving frequency) could be exciting/driving the 1st traverse harmonic.

     
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