Hard hot Start Problem (common)

[Gene1949]

Originally Posted by JayChicago

Because lots of people were driving old, tired cars that had maintenance problems. When all is well, no hot start problem.

And that was the key. When those cars were new they did function as designed. However, those "new parts/autos" had a relatively short working life.
IF I were to remain "period correct" and expect the drive the car I would replace everything electrical under the hood.