[quote:9981929e42]I have been told that castings need to cure for a period of time before installation. Cummins cures their engine blocks for 1 year (I think) before machining. Ellis[/quote:9981929e42]
While I don't doubt that may be the practice of today, it was certainly not the case 50-60 years ago when these tractors were rolling off the line. Although I certainly wasn't there to watch the parts come from the foundry to the machine shop to the assembly line, there is data to show that they were used as soon as they possibly could bolt them together, as soon as 2-3 weeks in some cases that I have seen. I've also seen in the same production line that used parts very quickly, it also take over a year before a part was used. (all this in the early production of the Cub)
Edit to add "quote"
This post was edited by screwstick at 13:58:46 03/06/12.
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