OEM pump to carb fuel lines - NCRS Discussion Boards

OEM pump to carb fuel lines

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  • David M.
    Very Frequent User
    • September 30, 2004
    • 517

    OEM pump to carb fuel lines

    Im converting from the butchered Holly electric pump set-up the previous owner installed to the OEM pump and return line set up. I need the pump, the push rod, the plate the gaskets, bolts and the fuel line set up.
    Question. In the picture do you see the proper mounting hole in the Ebrock Performer RPM intake to mount the OEM fuel filter? Does the filter bracket bolt to the intake? Has to I don't see any holes in the OEM heads.
    Can someone snap a pic of their 68, 327 stock set up? The AIM drawing is much too vague.
    Attached Files
  • Joe L.
    Beyond Control Poster
    • January 31, 1988
    • 43194

    #2
    Re: OEM pump to carb fuel lines

    Originally posted by David Morland (42626)
    Im converting from the butchered Holly electric pump set-up the previous owner installed to the OEM pump and return line set up. I need the pump, the push rod, the plate the gaskets, bolts and the fuel line set up.
    Question. In the picture do you see the proper mounting hole in the Ebrock Performer RPM intake to mount the OEM fuel filter? Does the filter bracket bolt to the intake? Has to I don't see any holes in the OEM heads.
    Can someone snap a pic of their 68, 327 stock set up? The AIM drawing is much too vague.

    Dave-----

    The stock fuel line and filter does not attach to the manifold. It is supported at one point by the AIR pump bracket (which is partially attached to the manifold). In your case, the pump bracket has been removed. In that case, you won't be able to properly use the stock fuel line and filter set-up. If you were to use it, it will be just "hanging out there" with no support between the pump and the carburetor.
    In Appreciation of John Hinckley

    Comment

    • Mark E.
      Extremely Frequent Poster
      • March 31, 1993
      • 4498

      #3
      Re: OEM pump to carb fuel lines

      Joe,

      Did all '68 small blocks had an AIR system? (I don't know; just asking.)

      Here are a couple photos of '68 small blocks (300hp and 350hp) which Google found. Neither have a smog pump. And in both, it looks like the fuel filter is only supported by the lines. Are these typical or modified (WRT fuel line and smog)?






      Attached Files
      Mark Edmondson
      Dallas, Texas
      Texas Chapter

      1970 Coupe, Donnybrooke Green, Light Saddle LS5 M20 A31 C60 G81 N37 N40 UA6 U79
      1993 Coupe, 40th Anniversary, 6-speed, PEG 1, FX3, CD, Bronze Top

      Comment

      • Mark E.
        Extremely Frequent Poster
        • March 31, 1993
        • 4498

        #4
        Re: OEM pump to carb fuel lines

        We've discussed this before, but this thread brings it up again:

        What if ncrs.org maintained a gallery with detailed photos of Bowtie cars, organized by year? Wouldn't you find this of value during restorations?
        Mark Edmondson
        Dallas, Texas
        Texas Chapter

        1970 Coupe, Donnybrooke Green, Light Saddle LS5 M20 A31 C60 G81 N37 N40 UA6 U79
        1993 Coupe, 40th Anniversary, 6-speed, PEG 1, FX3, CD, Bronze Top

        Comment

        • Joe L.
          Beyond Control Poster
          • January 31, 1988
          • 43194

          #5
          Re: OEM pump to carb fuel lines

          Mark------


          ALL 1968 Corvettes were equipped with AIR. No exceptions. Of course, many have been removed over the years and the ones you pictured are examples of those. In the original configuration, the filter had a circular bracket/clamp around it and this was affixed to the AIR pump bracket. The configuration seen in the photos is the "hanging out there" that I mentioned previously. You will also note in the first photo that the exhaust manifold has the AIR fittings plugged. More evidence that this engine was originally equipped with AIR.
          In Appreciation of John Hinckley

          Comment

          • Mark E.
            Extremely Frequent Poster
            • March 31, 1993
            • 4498

            #6
            Re: OEM pump to carb fuel lines

            Originally posted by Joe Lucia (12484)
            Mark------
            You will also note in the first photo that the exhaust manifold has the AIR fittings plugged. More evidence that this engine was originally equipped with AIR.
            Thanks. Good eye.
            Mark Edmondson
            Dallas, Texas
            Texas Chapter

            1970 Coupe, Donnybrooke Green, Light Saddle LS5 M20 A31 C60 G81 N37 N40 UA6 U79
            1993 Coupe, 40th Anniversary, 6-speed, PEG 1, FX3, CD, Bronze Top

            Comment

            • Gary B.
              Very Frequent User
              • July 31, 1979
              • 926

              #7
              Re: OEM pump to carb fuel lines

              It should look something like this.
              Gary B
              Attached Files

              Comment

              • Joe L.
                Beyond Control Poster
                • January 31, 1988
                • 43194

                #8
                Re: OEM pump to carb fuel lines

                Gary------


                Yes, that's pretty much what it should look like. However, this car has a later GF-432 filter which is shorter than the original OR it's got some other filter which has been modified to add the fuel return nipple. In fact, the fuel return looks not right to me.

                AIR pump is a correct 1968 pump.
                In Appreciation of John Hinckley

                Comment

                • Gary B.
                  Very Frequent User
                  • July 31, 1979
                  • 926

                  #9
                  Re: OEM pump to carb fuel lines

                  How about this one? From a different car.
                  Gary B

                  Attached Files

                  Comment

                  • Jim D.
                    Extremely Frequent Poster
                    • June 30, 1985
                    • 2882

                    #10
                    Re: OEM pump to carb fuel lines

                    Originally posted by Joe Lucia (12484)
                    If you were to use it, it will be just "hanging out there" with no support between the pump and the carburetor.
                    Other than not being original it's no big deal. All 65 big block cars left the factory with a filter "hanging out there with no support".

                    Comment

                    • Joe L.
                      Beyond Control Poster
                      • January 31, 1988
                      • 43194

                      #11
                      Re: OEM pump to carb fuel lines

                      Gary------


                      This looks like it's an original configuration. The hose clamps on the fuel return line should be dyed red. These might have been red but I don't see the slightest vestige of it now. Vaguely, it looks to me like the hose might be "fatter" than the original. That could be why someone used different (and larger) hose clamps.

                      By the way, smog pump is correct for 1968. Only all 1968 and 1969 L-88/ZL-1 used this configuration pump.
                      In Appreciation of John Hinckley

                      Comment

                      • David M.
                        Very Frequent User
                        • September 30, 2004
                        • 517

                        #12
                        Re: OEM pump to carb fuel lines

                        All, many thanks for the information. I did not realize that all 68 327s came with AIR. I proficient with metal fabrication. I may go the route of fab-ing a nice looking support for the fuel filter clamp from SS316 as a small step towards getting things back to stock. Or I may try to source a quieter electric pump. The pictures are worth 1K of words.

                        Comment

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