Re: 84 Johnson 155 water leak
That engine can leak water from various sources. The powerhead base gasket or the exhaust manifold cover. Also possible it could leak from the dual thermostat covers, one on each head. These V6's don't usually leak at the powerhead base gasket like the V4 engines historically do, but it's possible. If the base gasket it leaking, you'll have to pull the powerhead, about a 3 hour job for a skilled mechanic.