Re: Change of radiator core affecting cooling performance in 1949, 23rd series
Posted by HH56 On 2017/7/8 9:12:45
Quote:
When the car is equipped with A/C, is the water pump or fan pitch any different? It would seem that there might be some difference in some of the components to compensate for the higher volume radiator.
AC cars have a heavy duty fan. I believe the difference is the number of blades but there could also be a pitch and/or diameter difference.
The heavy duty fan was originally made for some prewar junior cars in situations where overheating at idle and slow speeds was an issue. Postwar they issued another bulletin to authorize use of the fan in more models for the same reason. We don't have the bulletin to know exactly which models Packard was concerned about to authorize the fan in them but prewar they were typically the junior models with the smaller radiators.
This Post was from: https://packardinfo.com/xoops/html/modules/newbb/viewtopic.php?post_id=193731