Fernando Mendes Posted July 6, 2019 Report Share Posted July 6, 2019 Because after warm up the engine the molecules of the water expand becoming lighter then rise to the top of radiator.The water cools by fan action then now the molecules contract and heavier descend to the bottom of the radiator. Quote Link to comment Share on other sites More sharing options...
Fernando Mendes Posted July 8, 2019 Author Report Share Posted July 8, 2019 Quote Link to comment Share on other sites More sharing options...
Fernando Mendes Posted July 19, 2019 Author Report Share Posted July 19, 2019 1 Quote Link to comment Share on other sites More sharing options...
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