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re: Mercury Outboard Steam
Posted on 4/27/23 at 8:21 pm to John_V
Posted on 4/27/23 at 8:21 pm to John_V
Have the same motor but 2012 model. Has done and still does the same thing. Steams at low idle after warming up and after running WOT then shutting down or getting off throttle to putt around. Just something it does but has never been an issue. Motor still runs great. Try to service it once a year and replace water impeller. Have had it alarm on temp but that was when I figured out it’s best to service and change impeller every year.
1
Posted on 4/27/23 at 8:54 pm to Griff Nasty
Generally not a problem. The vast majority of water and exhaust flow goes down the exhaust jacket and out the prop. At low idle more exhaust and thus more steam are pushed out of the idle port due to the water pressure at the prop. Normal for any outboard. Etechs steam A LOT at idle.
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