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  1. C

    What do I check next on overheating issue?

    Pulled off exhaust manifolds and risers and cleaned them up - they weren't clogged or too bad looking. Flappers and hoses all looked fine. Replaced belt driven water pump, cleaned thermostat housing again and put a new 160 deg t-stat and gasket. Still getting hot quickly when trying to troll or...
  2. C

    What do I check next on overheating issue?

    I'll get to work pulling elbows/risers apart for inspection. I will also get an infrared thermometer to check when running to verify temps. Boat did have some steam coming out of captain's side exhaust ports and engine started to stumble when temp showed high when idling. I did not notice any...
  3. C

    What do I check next on overheating issue?

    2003 Mercruiser 6.2L w/Bravo3 Engine overheats while idling and when applying 70% or more throttle. Going 10-30 mph - the temps stay somewhat comfortable. Boat is 24' Starcraft used only in freshwater lake. I replaced raw water impeller and thermostat (both looked fine) - but overheat issue...
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