Engine: Mercruiser 205 V6 4.3L from 1986 on a Wellcraft Elite 185
When going underway on a plane the temperature maintains at about 142 where it is supposed to be.
When I come down to an idle and eventually nuetral the temperature begins to creep up to and around 160.
Do we think this is thermostat? Enging water pump impeller? Water pump itself?
I replaced the impeller and housing and gaskets in the outdrive last year. Not sure if that would contribute?
But it is interesting in how it is fine under way and then when the speed comes down the temp creeps up....Doesn't happen every time either and can be resolved by putting the throttle back down and getting on plane.
Any thoughts, experiences, and suggestions welcome!
Thanks again boaters!
When going underway on a plane the temperature maintains at about 142 where it is supposed to be.
When I come down to an idle and eventually nuetral the temperature begins to creep up to and around 160.
Do we think this is thermostat? Enging water pump impeller? Water pump itself?
I replaced the impeller and housing and gaskets in the outdrive last year. Not sure if that would contribute?
But it is interesting in how it is fine under way and then when the speed comes down the temp creeps up....Doesn't happen every time either and can be resolved by putting the throttle back down and getting on plane.
Any thoughts, experiences, and suggestions welcome!
Thanks again boaters!