64 Radiator Decals and Stamps - NCRS Discussion Boards

64 Radiator Decals and Stamps

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  • Bill C.
    Very Frequent User
    • June 25, 2007
    • 106

    #16
    Re: 64 Radiator Decals and Stamps

    Mike

    I see what you are referring to.
    And yes, I am really confused.
    These changes were make very quickly Oct/Nov of 62. Maybe someone has an early surge tank sticker to show us.

    Bill

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    • Scott S.
      Extremely Frequent Poster
      • September 11, 2009
      • 1961

      #17
      Re: 64 Radiator Decals and Stamps

      Originally posted by Michael Hanson (4067)
      Bill,I think there were at least three different coolant stickers, and possibly four, for 1963. Look at AIM pages 11-13 sheet 8.0 and 9.0. In the parts list, there is only one, item #16, 3838409. If we look in the revision box at the bottom of the pages, the first thing we learn is that we are missing the original page with it's revision record. We know that because the revisions begin with #4. On the original page, the first revision would have been #1. That means there were more revisions than spaces to list them. Because of that, we will never know what revisions #1 through #3 were. On sheet 8.0, symbol #6 shows that sticker #16 (in the parts list) was sticker part number 3830621.On sheet 9.0, symbol #10 shows that sticker, part number 3830622 was removed. On sheet 9.0, symbol #11 shows that "something" was item #22. Are we confused yet? If we believe the last/revised page, there is only one sticker shown, item #16, "thermostat caution", to be placed on the coolant supply tank. No mention of a second sticker for the radiator. We know this is incorrect as we have LOTS of pictures of early and late production 63's with a white paper sticker on the radiator. I have a feeling that one of the first stickers that was removed may have been the same as one used on 62 models. It isn't one of the part numbers shown on either AIM sheet because the numbers shown are too hign, numerically, to have been issued for any 1962 model. I don't know how any solid conclusions can be reached using the information in the AIM. I've tried, for the last 35+ years to figure out exactly what occurred with these stickers and the only conclusion I've come to is that there is no absolute conclusion. I'm pretty sure that by mid production, everyone at the St Louis assembly plant was confused too. I think the information that is available from pictures of brand new 63 cars is more accurate. I can't read the text on the stickers that I posted but if someone happens to have some reproduction stickers, maybe they can compare the structure of the text line length that match one of the reproductions.
      Michael,I've been trying to piece this together and decided to check the TDB for any related info, because the Dobbins book and Adams don't match the AIM or the early photos. From what I can tell by the '63 AIM, the progression goes like this:

      9-17-62 (start of 1963 model year production) begins with Caution Label GM 3830622, or at least that's the earliest label we're aware of, because the earliest Revision Record shows GM 3830622 was "Removed" on AIM date 10-11-62. Revision #11 affirms that Revision #10 was item 22 on Section 11-13, Sheet 9.00. GM 3830622 must have been replaced with GM 3830621 Caution Label, because that Label p/n is called out as Item 16 (number in box with line drawn to label on expansion tank) on sheet 9.00, referencing the Item 16 listing on the previous page, which is GM 3838404 (last digit is a four under magnification), with a circled #6 next to it. The Revision Record shows that Revision #6, on AIM date 11-27-62, says "was 3830621 Sticker". So the progression looks like this:

      GM 3830622 Caution sticker, earliest known
      10-11-62 . . . 3830622 becomes GM 3830621
      11-27-62 . . . 3830621 becomes GM 3838404

      On page 86 of Adams he identifies the two labels (same upper and middle labels featured on Adams p. 62) as GM 3830621 and GM 3838404. I don't know if he's right about those part numbers, considering the confusion on this issue, and considering no source information is given.

      What I have seen in several engine bay photos (in Adams) is that the uppermost Caution Label shown on Adams p. 62 (beginning "T..") is the label seen over and over again on the top left hand side of the Radiator, for many 1963s and 1964s. Some pictures are clearer than others, but they are clear enough to distinguish 5 lines of text (not six, like the middle label on Adams p. 62), and on a couple of photos the bold-face text "NON PERMANENT" (fourth line of text on the uppermost label on Adams p. 62) is clearly visible.

      What I couldn't figure out is what label was actually being used on the Expansion Tank. It turns out there were at least two. As I'm sure many people know, the majority of the photos in Adams are cropped. The original photos are usually larger and show considerably more "area" than the photos that made it into the book. There are also many alternate angle shots of the same engine bays that did not make it into the book. One of these photos that IS in the book, but was cropped for the book which cut off most of the expansion tank, is a photo of a 1963 Z06 on Adams p. 177. I have cropped and magnified the original larger photo below, leaving enough surrounding detail that you should be able to confirm that it is indeed the same photo as the bottom photo on Adams p. 177.

      As you will see, the original photo is GM dated 1-18-63, and the Caution Sticker on the expansion tank is clear enough to distinguish 5 lines of horizontal text below the word "CAUTION". It is also clear enough to distinguish the letters "G M" on the fourth line of text. This matches exactly the expansion tank Caution Label sold by the various vendors as being for 1962 (example below).

      For 1964, a Caution Label was still being used on the expansion tank, but it is a different Caution Label than the 1963 Corvette. There is a 1964 L84 shown on Adams p. 229. On the bottom photo of the L84 engine bay, you can just barely make out a white label running lengthwise down the back side of the expansion tank, facing back toward the passenger seat. The original photo set of this engine bay included an alternate top-down angle photo not shown in the book (see photo #3 below, I left enough surrounding detail to confirm that it is the same engine bay as shown on Adams p. 229). The photo clearly shows that the Caution Label on the expansion tank of this '64 L84 is larger than the Caution Label on the 1963 Corvette expansion tank, and the text is running vertically, not horizontally as the 1963 Z06 expansion tank Caution Label. It gets too blurry when I magnify it to be sure whether it is the same label as used on the top left hand of the radiator in 1963-64, or not.
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