Mercruiser 8.2L Sea Core
My 2019 290EX has an 8.2l Sea Core engine that is overheating. I first checked, then added coolant and no issues for a few outings. Then last outing serious overheating and wouldn't cool down. The first few times the temp dropped when i went to idle. Not the last time, just kept getting hotter. I heard this engine might have an issue with the heat exchanger. anyone have any insight on this? thanks in advance!!