I'm looking to buy a 1988 Sylvan 209 Barritz with the omc cobra 4.3 stern drive that has sat for five years... It?s leaking water out one side of the motor... It runs well it does not have water in the oil, it does not run hot. Unless the gage is broken. But we ran it for about 20 min... I?m not sure if the two holes are freeze plug holes or what... But it leaks badly it filled the backend of the boat up faster than the bilge pump could pump it out.