470 I/0 overheat need help
Hey guys I need some confirmation here with my setup. Mercruiser 470 running hot- the raw water inlet hose is in the front on the heat exchanger right? Took that off seems like pressure coming out and spitting water? Thermostat works fine I took that out and boiled it in water and it opens at 160- I was having a over heat problem only at 3500 rpm and above but not it will boil over at idle if I let it run long enough. Took the risers off also they look perfect no derby or
Clogging ? I'm thinking maybe a head gasket?
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