68-72 Cowl Grille Panel - NCRS Discussion Boards

68-72 Cowl Grille Panel

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  • Joe L.
    Beyond Control Poster
    • February 1, 1988
    • 43221

    68-72 Cowl Grille Panel

    I'd like to have some folks with 1968-72's check something for me regarding the cowl ("wiper door") grille panel. On my original owner car, the grille panel is retained only by FOUR screws ( a pair near each end of the panel). There are two other pairs of screw holes on the panel further inboard on each side. However, on my car, there were never any screws in these holes as best as I can recall. As a matter of fact, although these holes "more-or-less" align with underlying brackets, the screw holes in grille panel do not align with any screw holes in the underlying brackets. They don't even come close to aligning with any holes.

    The car is completely as-original in this area and has never been repaired or modified in any way. My strong recollection is that there were never any screws in the "inner" pair of holes on each side. The grille panel was removed when the car was re-painted years ago, but that should have in no way affected this. In other words, if the holes did not align when the panel was re-attached to the car, then they could not have aligned before that time.

    So, what do other folks with 68-72's find with respect to these attachment points for the cowl grille? Also, what is the head configuration of the screws, both outer and inner (if you have the inner position screws)?
    In Appreciation of John Hinckley
  • Dennis D.
    Extremely Frequent Poster
    • March 1, 2000
    • 1071

    #2
    Re: 68-72 Cowl Grille Panel

    Joe...

    Off the top of my head my 70 has screws on the inners as well. The screws are phillips head with a thicker and narrower head(black phosphate?). Think the same screws are in the rear vent grille.

    The end mounts are in plates on the door opening mechanism. The inners are in brackets. One I believe in the wiper can area, and the other in the TSC relay area. If this location is correct, I believe your 69 has a different setup in both cases.(You know better than I do)

    Since there are holes in the inner brackets, and don't really refer to any other part for attaching, I would think they would attach the grille.Seem to recall the brackets having some adjustabillity.... Now I have to get my butt off the couch and check it out.

    Comment

    • Dennis D.
      Extremely Frequent Poster
      • March 1, 2000
      • 1071

      #3
      Re: 68-72 Cowl Grille Panel

      Correction. the only solo bracket is the one by the TCS relay on the firewall.The other inner by the wipper vac can is part of the opening mechanism as well as the 2 end attaching points.As per my 70 AIM.(to lazy to go to the garage.) The AIM also shows screws,(9427723), in 8 locations. ASM1,D5 (k76).

      Comment

      • Dennis D.
        Extremely Frequent Poster
        • March 1, 2000
        • 1071

        #4
        to much time on my hands *NM*

        Comment

        • Bob D.
          NCRS Shipping Data Report Manager
          • April 30, 1996
          • 788

          #5
          Re: 68-72 Cowl Grille Panel

          Joe,I'm the second owner of a '71 that I bought when the car was 8 months old. Mine came with 8 screws on the wiper door grille panel four on the outer end of the panel and four on the inner mounting spots. Mine are a black oxide cross recess head screws.

          Comment

          • Larry S.
            Expired
            • February 1, 1997
            • 24

            #6
            Re: 68-72 Cowl Grille Panel

            Joe
            My mid-April 68 has 4 locations for screws and they are all used.(8 screws) The inner set on the driver side is about 16 inches in from the fender line (end of the grill part0 and the pass. side is in about 9 1/2 inches from the fender line. All the screws in mine are fillister head phillips with a black coating. I HAVE had it apart and I believe I recall that you can reverse the location of the brackets and they will no longer line up. Only problem is it's been years since I had it apart and only months since my most recent memory lapse. Larry

            Comment

            • Frank Vincent

              #7
              Re: 68-72 Cowl Grille Panel

              1969 early build (Nov '68) L46 with 19,800 original miles-

              6 screws total - 4 outside brackets and 2 passenger side inside.
              driver side inside has bracket underneath, but the screw holes do not line up.
              I've tried to move the bracket, but it won't budge. Appears the holes in the bracket
              were misaligned by the same measure (both approx 1/4" in the direction of windshield)

              all screws are chrome phillips dome head with oval underside (tapping oval maybe?)
              Can't attest to their originality though ....

              Comment

              • Dennis D.
                Extremely Frequent Poster
                • March 1, 2000
                • 1071

                #8
                Re: 68-72 Cowl Grille Panel

                All the attaching points are part of the assembly to operate the wiper door with the exception of the inner one on the driver side. The AIM refers to this part as the grille bracket




                Comment

                • Kent K.
                  Extremely Frequent Poster
                  • December 1, 1982
                  • 1139

                  #9
                  Re: 68-72 Cowl Grille Panel

                  Joe,

                  My August 69 Corvette, SN 726231, utilized all 8 screws, 2 in each of 4 brackets securing the windshield wiper door. I am the second owner with all receipts for all work done while in the original owners posession. The screws appear black Phillips head of similar description provided by others posting.

                  Kent #6201
                  Kent
                  1967 327/300 Convert. w/ Air - Duntoved in 1994
                  1969 427/435 Coupe - 1 previous owner
                  2006 Coupe - Driver & Fun Car !!!
                  NCM Founder - Member #718

                  Comment

                  • Terry M.
                    Beyond Control Poster
                    • September 30, 1980
                    • 15601

                    #10
                    Re: 68-72 Cowl Grille Panel

                    Joe,
                    My original owner 1970 (Jan 29 build) has 8 screws total. All the screws are black filister head Phillips. There are no empty holes on my cowl.
                    Terry

                    Comment

                    • Jack H.
                      Extremely Frequent Poster
                      • April 1, 1990
                      • 9906

                      #11
                      Re: 68-72 Cowl Grille Panel

                      All the untouched originals I've seen in our shop over the years, as well as my own '71, had all eight holes filled with screws. That doesn't mean somebody didn't 'oops' on the assy line from time to time and leave some screws out, but here's a clue.

                      The factory originals are unlike what's sold for the application by the catalog houses. These were black oxide Philips head sheet metal screws with Type BT(25) thread cutting tips. If your unused screw hole locations are threaded, it suggests they originally saw/ate fasteners at the factory. If the holes are simply pierced without evidence of threads, then it could well be the car left the factory without screws having been installed...

                      Comment

                      • Kurt B.
                        Very Frequent User
                        • July 31, 1996
                        • 971

                        #12
                        Re: 68-72 Cowl Grille Panel

                        Joe,

                        My 68 with May 10 build date has always had and still has 8 black oxide filister headscrews holding grille the panel to the brackets under it. The ends are of the thread cutting variety and all 8 are identical.

                        Kurt

                        Comment

                        • Mark F.
                          Expired
                          • January 1, 2003
                          • 139

                          #13
                          Re: 68-72 Cowl Grille Panel

                          My August of 68 build date has four screws on the outsides, two screws on the passenger inner but no screws on the driver side inner. The bracket does not line up properly on the inner driver side.

                          Mark

                          Comment

                          • Greg L.
                            Extremely Frequent Poster
                            • March 1, 2006
                            • 2291

                            #14
                            Re: 68-72 Cowl Grille Panel

                            Hi Joe,

                            Mine is like most of the other posts...8 black philips head screws holding the grill to it's brackets. Jan31/69 build date, s/n 14848.

                            Comment

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