Re: Pressurized cooling system on a 1939 120

Posted by Owen_Dyneto On 2018/10/5 13:03:40

... is it common for non pressurized cars to boil over when sitting in traffic?


Common? With a cooling system in good condition, no it is not common, more like highly uncommon. When these cars were new they were engineered to perform satisfactorily in prevailing typical conditions in the markets in which they participated. With that said, I wouldn't call prolonged idling in traffic in 118 degree heat the kind of typical condition engineers took into consideration when they engineered the cooling system. In conditions like that, I suspect even when new these cars would have had problems coping. Pressurizing the system will raise the boiling point of the coolant but won't have much of an effect on dissipating the heat, I'd be more inclined to add a supplementary electric fan on the radiator front.