On Sep 9, 3:03*pm, fzbuilder wrote:
Hey Guys, I have an 86 Penta 350 in my Bayliner and at start up there
is no smoke, but when it gets warmed up around 170, it starts putting
out white smoke. My oil is clean and the engine runs pretty smooth
however I am getting very little to no water out the exhaust and yes I
have the outdrive with the prop off resting in a tank of water. No
leaking water into the bilge. I just replaced the impeller and am now
thinking of the water pump, but the smoke is making think there is
another problem. Any help would be appreciated. Thanks

My I/O impeller could not pull water from a "tank" ... could be you're
getting very little cooling water and so the output is steam ... I'm
surprised it's not overheating. I'd recommend the garden hose and
muffs thingy ... then see if water's coming out the exhaust once up to
temp and the thermostat opens.