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Rough idle help.

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Old Jan 31, 2017 | 02:08 PM
  #16  
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Boeing 717
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Just did a compression check again myself. First time I've ever done this and used my dads old compression tester. Dry test showed front to back.
170
170
165
162

Opinions?
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Old Jan 31, 2017 | 03:20 PM
  #17  
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From: Decatur, Al
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A general rule is that there should be no more than 15% difference from the highest to the lowest. I would say you engine test looks good.
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Old Jan 31, 2017 | 03:25 PM
  #18  
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Good, it's a lot better than the 135 psi that shop said I have.
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