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What do the compression numbers mean?

Posted By zuburg 10 Years Ago
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zuburg
Question Posted 10 Years Ago
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I finally did another compression test on my 239.  I did the test again because I forgot to do the first test with the accelerator wide open and I wasn't able to get the compression hose on all the cylinders.  I have the numbers for cylinders 1 thru 7 because I still couldn't get to no. 8.  I'm sure the numbers indicate issues but thought I would throw them out to see what the experts say they mean.

Cyl.            Compression
1                      115
2                      90
3                      85
4                      90
5                     105
6                     120
7                     110
8                       ?


thanks



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