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Is the ring gone?

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nick

15+ Year Contributor
154
0
Feb 13, 2006
Edmonton, AB, Canada
So I did the compression test this weekend and the result are.
Dry test 1-139
2-139
3-135
4-139

Wet test 1-149
2-149
3-145
4-149
So is my ring gone?
 
No, that's pretty good static numbers for wet vs dry.
Maybe do a Cylinder leak down test to see where your loosing compression, but it's not horrible #s.
 
Thank you VIPREZ. That makes me feel a lot better now. That I don't have to rebuild my engine.
 
Service limit is around 120 and your numbers are actually pretty good and not varied for a worn motor. I wouldn't stress it.
 
number 3 could be either worn ring, valve stem seal leaking a little, or headgasket leaking a little, but with those numbers your perfectly okay I wouldn't even think twice about it.
 
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