Hi water in one of the cylinders on mercruiser 4.3. visual look at block from outside and under intake manifold looks good. replaced head gasket on problem side. replaced intake gaskets. all cylinders 98 to 104 psi. took off risers, water spraying out problem side when running. obviously water in oil. The amount of water spraying out the problem side is large. my thoughts....blocked cracked internally? internal crack on intake manifold? (it was inspected but no visual signs of cracking) not pressure tested. any ideas? Thanks in advance.
