i recently purchased a used 1988 baretta boat with a volvo aq151b enjine. It has a fresh water cooling system. It was leaking coolant into the enjine. I know this means I have a blown head gasket are a cracked block. I used some k&m block sealer and it has sealed it for the time being. Pressure checked it overnite with 15lbs held pressure. I'm afraid when i put antifreeze back in it will start leaking again. Does anyone have any experience like this?
