2 answers at once.
1st pressure check done with a compressor. Meaning compressor to one side of the pipes and sealed on the other side.
2nd Will reinstall tomorrow. Seals seem to be good, will check to have them tight enough.
crack in the engine block. Can not imagine how saltwater would enter the sweat water circuit if the engineblock would have a crack. Exhaust fumes are clean.
Please keep fingers crossed. Don’t want to buy a new engine... But at some point.... how much do you really want to invest in a 25 yo engine...
SN 119 / Cascais, Portugal