Re: Beginning a CD-12 adventure

[Don]

OK, just reread your post, you say the top cylinder has low compression, so my eyes must be playing games with me. Did you pull the head gasket off the block? Any signs of leakage or gouged block/head surfaces that might cause a leak? Your pictures don’t seem to show signs of water in the cylinders. Sometimes those head gaskets like to fail right between the two cylinders, which wouldn’t always create a water leak. BUT, a leak between the two cylinders would cause low compression in both cylinders.
What is the story on this engine, did you just get it? If so, have you attempted to run it?