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Balance shaft removal
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Posted by Barry (more from Barry) on Thu, 10 May 2007 04:50:49 Share Post by Email
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After removing the balance shaft chain on my 92 2.3lt 9000 I have noticed
a vibration at 2500-3000 rpm. The vibration is most noticable on the air conditioner compressor body. There is no vibration evident on the motor.
I have run the motor without the serpentine belt and the vibration is still there so it has nothing to do the waterpump etc. Could it be that the increase in second harmonic vibration as a result of the removal of the balance shafts sets up a reasonance in the compressor at 2500 to 3000 rpm? Is the vibration still there on cars not fitted with air-conditioning?



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