Can you, or someone else can give me some direction on where to find the dates on the 4 bolt pulley style 1966-67 California smog pumps?
I have 3 samples of these to easily look at. 2 of them are 66's and one is a 67
Later I can upload images I took of the two 66's, the dating I found is on the cast iron back plate. The codes are similar to what we might find on other cast items (look similar to a screwed on tag) but there are not as many characters used. For example, one is "201" (maybe "2D1") and other is "14" or maybe "I4". The casting number seems to be the same, at a glance, but there is another code "D10" on one and "D8" on the other.
It would be better if I could take more time that my lunch hour will not allow, let me know if you want images or more info. I could easily look at the 67 one also, if you wish
Richard