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I have swaped diaphragms and T stats for new ones. The boat is still overheating. I tested the water control valve with water pressure and it seems that water goes both ways... could this cause the T stat not to lift fully out of the seats when throttle is applied ?
I'm looking to get our old boat fixed again. He always had problems with overheating if you where going slow, we always had to go faster to keep it from overheating. So before we went out on a boat trip again we decided to replace the waterpump completely. It still overheated after a while and...
