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1985 90hp merc 6 cylinder blue smoke and water from engine cover

jsd3024

New member
It backfired then started and smoke comes out at lower back of engine cover. Starts every time but smokes at idle. Any ideas?
 
Well...it's not doing it now. It was coming out of the slots below the cover. Blue smoke abd a little water. Seems to be idling rough now but not smoking.
 
Is this motor new to you ?--------First time boater ?----------------If this is a new boat / motor you need to install a new water pump impeller now !
 
It is new to me and I just replaced it. Rain the motor for 5 minutes or so with force water from garden hose with new impeller. Engine is not hot to touch and so is water from weep hole. It would smoke as soon as it starts and run at idle. Stream from weep hole looks about the same as before new impeller. Think that was the smoking problem?
 
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