Join Date: Mar 2003
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Thanks for all the input. Putting together the thoughts from a couple of you, this is what we think happened. Belt broke (and yes, it is the raw water pump, hubby was asleep when I posted last evening). No water coming out of exhaust allowed us to hear the very loud sound of the engine. No water to cool the engine, caused it to overheat and seize, setting off the alarm.
Of course, this does not explain the exhaust port below water.
We have checked that at various times over the years. for various reasons...and it has never been underwater before. And the bilge did not fill, so I don't think we were taking on any water.
I guess we'll find out this weekend if there are still problems. We were just 5 minutes away from the marina when it happened and we just sort of slowly made our way to it after we replaced the belt. That took about 45 minutes, finding belt and right size tools, etc., giving engine time to cool.
I'm trying not to think about any long-term serious problems related to it.