Your engine as supplied by the factory, has a thermostat, just like an
automotive thermostat. It is located so that the water is warmed by the
exhaust manifold before entering the engine and the thermostat does not let
excessively cold water enter the engine. The water is allowed into the
engine when it is at the proper temp. Thus the engine operates at it's
ideal temp.

You may be anticipating a non existent problem unless someone has removed
the thermostat, in which case, put one back in.

Don Dando

wrote in message
ups.com...
I am buying a used boat from Stony Point, NY. It has a Mercruiser V8
5.0 with 190 HP with 300 hours on it.
I live in Greenland. An island in the arctic region east of Canada
where the seawater temperature is around 36-37 F degrees. And that´s
where there might be a problem. I am told that the motor is "use" to be
cooled of with warmer water temps around the more southern part of the
world. And when I get the boat and the motor is cooled down with
seawater that is 36-37 F degrees then it migth not run smooth anymore
or develop somekinda problem. Is this story a myth or is there
something to it? And if the story is right how can i prevent any
problem with the motor. I cannot install fresh water cooling system as
it is too late for this motor because it has already 300 hours of
seawater cooling I am told.
Any help or suggestions will be much appreciated.

Thanx
jens erik
Nuuk
Greenland