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Old Jul 27, 2005 | 12:42 PM
  #1  
bshackelford711's Avatar
bshackelford711
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compression PSI

well i want to check my compression to make sure that everything is ok with my 390.


What are some ranges of the PSI i should get out of my 390?



Thanks
-Brandon-
 
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Old Jul 27, 2005 | 12:52 PM
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Freightrain
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New motor.....hmmm...maybe around 170 psi? Depends on how well the rings are seated, etc. Could be a bit higher. Just a shot in the dark. As long as all 8 are within close range of each other...you're good.
 
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Old Jul 27, 2005 | 02:22 PM
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Randyb12
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The main thing is that they are all within 20% of each other.
I would think anything over 100 psi and within the above memtioned 20% is ok.
 
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