G
Greg Reichert
Guest
"I was starting my boat for th
"I was starting my boat for the first time of the season yesterday, and after hooking up the muffs and turning on the ignition all went well initially. The engine ran smoothly, after getting up to temperature, about 160, the pump seemed to cycle fine as I watched all of the colored antifreeze slowly pump out of the sterndrive. It maintained its temperature well, so I shut it down and proceeded to change the oil. After changing the oil, I started it back up to get oil into the filter and check the level, but the boat proceeded to heat past 160 and it never cooled down. I quickly turned it off and waited to try again with the same result. I then looked on a forum and read that if I unhooked the thin top hose that goes into the thermostat housing coming from the impeller and no water came out while engine was running, the impeller was at fault. I tried this and no water came out of the hose with engine on. I'm just trying to figure out if it might be my impeller or if the thermostat might be bad. I don't understand why it would have worked upon initial startup but not 30 minutes later after changing the engine oil.
It also overheated momentarily when I was winterizing it with one of those winterizing kits that you hook up to the muffs, but it didn't seem to be able to suck in the antifreeze. I shut it down at that point and hooked up the muffs directly to a garden hose and it cooled back down.
Now, however, it continues to heat past the 160 degree mark at all times. Any help would be appreciated. If it is the impeller or thermostat, can I fix these myself. I am handy, but a newbie boat owner. Thanks, hope post isn't too long..."
"I was starting my boat for the first time of the season yesterday, and after hooking up the muffs and turning on the ignition all went well initially. The engine ran smoothly, after getting up to temperature, about 160, the pump seemed to cycle fine as I watched all of the colored antifreeze slowly pump out of the sterndrive. It maintained its temperature well, so I shut it down and proceeded to change the oil. After changing the oil, I started it back up to get oil into the filter and check the level, but the boat proceeded to heat past 160 and it never cooled down. I quickly turned it off and waited to try again with the same result. I then looked on a forum and read that if I unhooked the thin top hose that goes into the thermostat housing coming from the impeller and no water came out while engine was running, the impeller was at fault. I tried this and no water came out of the hose with engine on. I'm just trying to figure out if it might be my impeller or if the thermostat might be bad. I don't understand why it would have worked upon initial startup but not 30 minutes later after changing the engine oil.
It also overheated momentarily when I was winterizing it with one of those winterizing kits that you hook up to the muffs, but it didn't seem to be able to suck in the antifreeze. I shut it down at that point and hooked up the muffs directly to a garden hose and it cooled back down.
Now, however, it continues to heat past the 160 degree mark at all times. Any help would be appreciated. If it is the impeller or thermostat, can I fix these myself. I am handy, but a newbie boat owner. Thanks, hope post isn't too long..."
