[Marco Tahtaras]

Originally Posted by d.j. moordigian

Under "Engineering Information"....for the "Throttle Assembly", I have at least one
or two questions..

Dates, 10-24-1927 and 12-10-1927...that should be Type 1
Date, 6-12-28 is the next date...is that a Type 2?
Dates, 9-12-28 and 10-16-28 follow...next or revised Types?

Is "Engineering Information", new prints, revisions, tooling or machining
change,foundry change...or just a note/letter?

It appears you're looking at the assembly drawings only which I suspect some are missing including one dated 4/5/28. There are at least 149 different related drawings on file and 15 of the bracket alone. Without looking at them and/or the engineering releases it tough to determine much definitively. Some change can be as minor as the notation changing the spec on heat treatment. Others can be changing the +/- tolerance on a hole size or radius.

Finally, it's possible the 6/12/28 date you mentioned is simply a "catch-up" on the records including a change in the bracket itself which was recorded 5/8/28, except I'd really expect it to carry the corresponding engineering release number which it doesn't.

I hope to be able to post some things in a couple days (when the rain hits) that will help or prompt folks to look at there cars for some real life feedback.