njdo

Thanks for everyone's input. I think it was overfilled.. sorry it just another noob known issue! It is only filled to around a fingernail, an inch and half from the top maybe.. but as soon as it heated up and pressure built, you are right it was travelling from the cap. Can't see any drain valve but will hunt it down or stick the wet vac in there. Thanks again. I'll post some pics of the Fitout soon. I fit high end kitchens and bathrooms for 10 years.. a boat is a different game but will share any tricks and tips I may have

Thanks.. that helps me progress I took off the heat wrap to investigate, some rust on the exhaust but no sign of holes. Cap was replaced for new as the old one wasn't sealing correctly. Again not sure if this was why the engine cut out/overheated or because of it. There were plastic bags caught on the propellor which put strain on the engine.. pulled over as soon as we realised but obv too late. Steam coming from engine, coolant tank dry. Everything red hot. Fuse to starter motor blown. Replaced fuse and cap, filled up coolant, started engine.. started but spotted the wet! I'll try and get a video to see exactly where 'water' is coming from. Thanks for the comments.. apologies for the lack of detail.. I'm in IT and issues raised with 'its broken' are an annoyance, similarly didn't want to write an essay. But thanks.. I know what to check next and praying it's not gasket!

Wasn't expecting such a quick reply.. thanks so much I'll upload a video link as soon as I can

Sry was struggling to upload. It's a beta marine

Hi all. Fitting out a boat for the first time (experienced in kitchen and bathroom fitting!) But discovered an engine problem on our maiden voyage. Overheating, blown fuses. Cause or symptom.. after replacing the sealant cap I have coolant leaking between the coolant tank and what looks like an exhaust. Thinking I maybe need to unbolt the 'corregated' pipe from the tank and apply some kind of resin seal before bolting back on? Or way off the mark?