February 1, 1926:
Fishleigh Files, Ford Archives
The front timing gear cover plate without the fan adjusting screw boss was adopted this date.
Thanks Arnie, what is the Fishleigh Files, I have never heard that term before. ??
Do not know, but someone at the Benson Ford Research library might know.
The Fishleigh Files must be in box 169 at the Ford Archives:
"FEB 1 Box 169, Ford Archives
The front timing gear cover plate without the fan adjusting screw boss (T690D) was adopted this date."
Roger and Dave, Thanks for the link and info, I learn something new all the time. I had read the encyclopedia before, but never really gave a lot of thought as to the small parts dating at that time. I believe "most" of the dates of change, or adoption dates will be out there for the Improved models. Its just finding them all and assembling them together in one place that is driving me nuts ... Thanks again everyone...