I will be pulling my cylinders next week to replace some failing piston pin plugs. I ran a compression test today with only fair results. I have a home-made compression tester following the appropriate specs for the air passage. However, I am not sure how much I can trust it. I got the following on a 120 SMOH O-320: 69/72/69/74
There is no additional work to replace the rings with the jugs off, just the cost of the rings. I don't want to go through break-in again if I don't need to, but also don't want to miss the opportunity to make it better while I am in there.
I was hoping to borrow a compression tester from someone willing to loan it in the Chicago area. Please let me know if you have one local and willing to share.
Larry
There is no additional work to replace the rings with the jugs off, just the cost of the rings. I don't want to go through break-in again if I don't need to, but also don't want to miss the opportunity to make it better while I am in there.
I was hoping to borrow a compression tester from someone willing to loan it in the Chicago area. Please let me know if you have one local and willing to share.
Larry
