Fuel pump rebuilds - NCRS Discussion Boards

Fuel pump rebuilds

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  • Chris E.
    Extremely Frequent Poster
    • November 3, 2006
    • 1326

    Fuel pump rebuilds

    Ok guys, just cleaned up my original AC fuel pump. Just thought I'd share some observations about the differences between the repop and the original.

    1. Lots of variances between the shape of the main housing and the repop.
    2. The bottom bowl is crimped onto the top housing with a different shape.
    3. No "AC" logo (obviously)
    4. The seam along the top of the pump is much more pronounced on the repop than on the original.
    5. Compared to the Paragon original, there are a different number of holes on the one side. (see link for a picture of the Paragon unit). I'm not sure if anyone has had a Paragon unit on their can and had it judged or not.
    http://www.corvette-paragon.com/p-35...ump-w-327.aspx

    Oh, and here's what mine looked like to start with. Just a LITTLE greasy.....cleaned up pretty nice though (90 minutes later).

    A couple of questions though. Looking at the part number on my pump, I'm confused. The TIM/JG says that it should be part number 6440433, yet my pump reads FF40433.

    Second, any guesses as to what the marks are on the bottom of the pump? One looks like it MIGHT be a 7, not sure about the other one though. Might just be a gouge in the pump and not a stamp mark. The TIM/JG mentions no date coding on the pump.






    Last edited by Chris E.; March 8, 2009, 10:10 PM.
    Chris Enstrom
    North Central Chapter Judging Chairman
    1967 Rally Red convertible, 327/350, 4 speed, Duntov @ Hampton in 2013, Founders @ KC in 2014, family owned since 1973
    2011 Z06, red/red
  • Jack C.
    Extremely Frequent Poster
    • September 30, 1992
    • 1090

    #2
    Re: Fuel pump rebuilds

    Chris, from a judging perspective, I believe that the AC logo is all that is judged. The manual say's (the casting numbers are next to impossible to see, this number is not jidged)
    Jack Corso
    1972 Elkhart Green LT-1 Coupe 43,200 miles
    Top Flight 1994, 2018 & 2021

    Comment

    • Gene M.
      Extremely Frequent Poster
      • April 1, 1985
      • 4232

      #3
      Re: Fuel pump rebuilds

      A small mirror on an extender is all you need to see this number on the bottom side of the flange. Skinny guys can fit under a small block to see it. Judges used to look for this number. Do they not look any more?

      Comment

      • Chris E.
        Extremely Frequent Poster
        • November 3, 2006
        • 1326

        #4
        Re: Fuel pump rebuilds

        I was wondering moreso about why my number doesn't appear to be correct. I believe this is the fuel pump that has been on the car since 1973. Prior to that, the likelihood that it failed in the first 7 years of operation is pretty low, IMHO.

        Thoughts?
        Chris Enstrom
        North Central Chapter Judging Chairman
        1967 Rally Red convertible, 327/350, 4 speed, Duntov @ Hampton in 2013, Founders @ KC in 2014, family owned since 1973
        2011 Z06, red/red

        Comment

        • Dale S.
          Expired
          • November 12, 2007
          • 1224

          #5
          Re: Fuel pump rebuilds

          Chris, The fuel pump on my 1967 Impala wagon went out in 1970 with 36000 miles on it. It had to be towed to Barstow Ca. . (283 powerglide but I dont think that makes any difference.) Dale

          Comment

          • Keith L.
            Expired
            • April 7, 2008
            • 378

            #6
            Re: Fuel pump rebuilds

            I can remember putting a fuel pump on my moms 72 Monte Carlo before I got married so it made it less than 3 years.

            Comment

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