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87 Johnson 30hp Engine overheats

basswoood

New member
The alarm sounds after several minutes or less. The water indicater always shows a stream of water being pumped by the water pump. I have replaced the impeller and flushed out with garden hose. (it seems to be free of any obstructions) I also have also moved to idle when warning aleam sounds.
 
possibly a blown head gasket / loose head bolts.--------Quite common after overheat.--------------Also could be the deflectors in the block that guide water around for proper cooling.
 
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