1972 SB-timing tab finish - NCRS Discussion Boards

1972 SB-timing tab finish

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  • Jerome P.
    Expired
    • October 22, 2006
    • 607

    1972 SB-timing tab finish

    From an originality prespective was the timing tab on a 1972 small block painted engine orange or was it left unfinished? Or was it just partially painted?
  • Joe L.
    Beyond Control Poster
    • February 1, 1988
    • 43211

    #2
    Re: 1972 SB-timing tab finish

    Originally posted by Jerome Pederson (46381)
    From an originality prespective was the timing tab on a 1972 small block painted engine orange or was it left unfinished? Or was it just partially painted?
    Jerome-----


    Generally, I believe they were painted with the engine and then the surface with the timing marks was "wiped". I'll bet there were more than a few which didn't get the "wipe", though.
    In Appreciation of John Hinckley

    Comment

    • Patrick H.
      Beyond Control Poster
      • December 1, 1989
      • 11642

      #3
      Re: 1972 SB-timing tab finish

      Like this:

      Vice-Chairman (West), Michigan Chapter NCRS
      71 "deer modified" coupe
      72 5-Star Bowtie / Duntov coupe. https://www.flickr.com/photos/124695...57649252735124
      2008 coupe
      Available stickers: Engine suffix code, exhaust tips & mufflers, shocks, AIR diverter valve broadcast code.

      Comment

      • Robert C.
        Expired
        • December 1, 1993
        • 1153

        #4
        Re: 1972 SB-timing tab finish

        Most i've seen had been masked off half way down. With the tape removed after engine painting, leaving the timing marks natural.

        Comment

        • Phil D.
          Expired
          • January 17, 2008
          • 206

          #5
          Re: 1972 SB-timing tab finish

          Reviving an old thread, but just removed the paint from a 72 SB timing tab and it appears that it had some plating on it originally, possibly a zinc or galvanized finish. What was exposed was rusted but under the paint was mostly bright and shiny. Some of the underside appeared tarnished and grey but not rusted. Should I bead blast the whole thing and re-plate in zinc or something else before repainting or other suggestion?

          Comment

          • Jerome P.
            Expired
            • October 22, 2006
            • 607

            #6
            Re: 1972 SB-timing tab finish

            If other procedures to remove the rust did not produce the desired result, then lightly bead blast, replate, paint with engine and wipe paint off in area of timing marks. (It may be the finish of the bracket is just natural)

            Comment

            • Patrick H.
              Beyond Control Poster
              • December 1, 1989
              • 11642

              #7
              Re: 1972 SB-timing tab finish

              I would try a chemical de-rusting or similar. Beadblasting will alter the finish, and even if replated may "dull" the apperance.
              Vice-Chairman (West), Michigan Chapter NCRS
              71 "deer modified" coupe
              72 5-Star Bowtie / Duntov coupe. https://www.flickr.com/photos/124695...57649252735124
              2008 coupe
              Available stickers: Engine suffix code, exhaust tips & mufflers, shocks, AIR diverter valve broadcast code.

              Comment

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