Re: Adding antifreeze every 50 miles 1937 115

Posted by JRPackard37 On 2020/8/6 20:41:20

I forgot to add the rear axle is from a 36 and is a 4.54 gear set so at 55 mph the engine rpm is higher perhaps leading to high water pump flow causing the excess bubbling and loss of coolant via top overflow line of radiator?

I also have a nos butterfly style thermostat, is there a difference in flow between a butterfly style thermostat and a stant style?



Is this a to much water flow issue in the radiator or some else, or just normal for this make of Packard.

Lots of questions,. Thanks for any thoughts.