Andy C wrote:

mercury force '97 75hp
hi there,
does anyone know if it is normal for there to be no flow from the tell-tale
until the thermostat opens ?
there doesn't seem to be any cooling problems but it seems weird for nothing
to come out the tell-tale for the first 2 or 3 minutes... the local dealer
thought this was normal but didn't seem sure...
many thanks for any comments !
andy



I don't have the specific answer to your question, but consider this: On
the larger outboards I've owned, I've noticed it takes *under* a minute
for water to start exiting the powerhead. That was true for the Mercs
and is true for the Yamaha. Two or three minutes? That seems a long
time. While the outboard is running, its waterpump impeller is spinning
and pulling water up into the powerhead for cooling. There's no
auto-type radiator in an outboard, so where would all that water being
pumped up into the powerhead be stored?


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