Snakeriversailor77
Contributing Member
Sorry to have to ask this question but after looking at the other posts regarding an overheat alarm I still don't see the same issue. This engine starts, idles for long periods at the dock without any alarm (solid beep). Taking the boat out after about 5 minutes of idling while in gear, the alarm started. Checking the temp the engine was running hot (over 200 F). The waer discharge was good but didn't see to be hot a all. Replaced thermostat and pressure spring/plunger, started engine again, water discharge now warm but not hot at idle with oodflo which increases with rpm. Took the boat out with no problems or alarm at both low and high speeds. Checked temp and in the 160 F range. Problem solved right? Nope! Next time out, alarm went off on way out in the no wake zone. Water pump replaced previously at the end of last season. Sensor tests good. Thinking of looking at the water pump although it has been replaced and seems to be pumping. What else?