‘58 365 , wet #2 cilinder

[J. Gomez]

Welcome to the club! I was locked out too; the administrator wrote to me that I should add the Java Script. I did some manipulations (don't ask, computers are not my glass of red wine) and I can again post with Microsoft Edge. I had no issue with Firefox.

Roger,

I did not have a "get out of jail" card so I had to use one of my hotels as a collateral to be released.   

[fishnjim]

From my perspective, a leak is a leak (aka:loss of proper containment), so if the compression is "good", then how can there be a leak? 

The only thing that changes is the "size" of the leak, where it's leaking form, what's leaking, and the direction, out or in.
That's what the leak down test is for after the compression test.   But won't tell "where" or "what".   That requires inspection.

[J. Gomez]

From my perspective, a leak is a leak (aka:loss of proper containment), so if the compression is "good", then how can there be a leak? 

Jim,

If the valves "O" ring seal are bad there would be oil dripping down the valve steam which could leak down into the cylinder.
Or as Roger mention either the vacuum valve on the right side of the block or the vacuum manifold at the firewall are defective oil could be suck into the cylinders, although in this situation there would be more plugs showing the same condition.

That's what the leak down test is for after the compression test.   But won't tell "where" or "what".   That requires inspection.

There is no compression or leak-down test that would be able to identify either of these problems.

In my case I had an issue with all plugs getting wet with oil after a few minutes running and the engine at normal temp and burning oil was notice (visual and smell) on the exhaust. After a long and tedious troubleshooting and visual inspections and other trial an errors I finally found with a leak-down test that "ALL" cylinders were leaking.

After removing one of the pistons I found the machine shop had install the wrong size rings, the gap was about 3 times the normal with the 0.040" size bore cylinders and pistons.

Once I changed the rings everything got back to normal.

Changing the valve "O" rings on Ramon's case would be a less intrusive and easier alternative to see if he able to resolve his issue. If not them as you stated he would need to start the heavy duty tore down process.