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Installing the Lightweight Rear Hatch

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  • Installing the Lightweight Rear Hatch

    After turning the rear hatch frame work into a lightweight shell, it was time to figure out how to install it since all the hinges and locking mechanism had been removed.

    My first plan was to use hood pins but after looking at them I decided that they would not work all that well. Besides, how often or how quickly did I need to get into the rear space?

    So after a re-think I went with 1/2" x 1" stainless bolts and nuts.

    I first made up two aluminum flanges that the bolts would pass thru/secure to and rivet them to the hatch frame. To hold the hatch frame in place went I was fitting it to see where holes had to be drilled, I made a small "U" shaped bracket and temporarily screwed it to the body work. With it installed, the hatch would stay up in position (mostly,,,), at least long enough for me to secure it in place with blue painters tape.

    Once everything was re-aligned, I marked where the holes had to go on the roof of the car ad removed the hatch and drilled the holes. Then came the ugly part - having to cut open a "window" in the inside frame work for the rear hatch. With the window I saw that I could make up "L" shaped brackets and fit them in the space. Once they were fabricated out of 12-ga steel, I marked thru the 1/2" roof hole onto the L bracket where the holes had to be on it.

    Holes drilled, in went the 1/2" bolt and they got tack welded. Then the rear hatch was put back on and taped in place and the L brackets fitted and fastened to the L bracket bolt. Holes were drilled in the L bracket so it could be riveted in place. Once that was done it was time to fit another L bracket down where the lock mechanism had been. After fitting to make sure the one leg of the L was in solid contact with the rear hatch, the spot where the 1/2" bolt had to go was marked and the L bracket drilled. The bolt was welded to the L bracket and the entire L bracket was welded onto the car.

    The rear hatch was put back on and marked where the hole had to be drilled for the third bolt. This hole took the most amount of fiddling to get it to fit onto the bolt. Once done, I made a doubler plate out of aluminum and riveted it into place once the nut had been secured to hold the doubler where it need to be.

    Long story short, the rear hatch fits well, the nut fasteners look OK, you can un-bolt the hatch in a couple of seconds, the hatch is 100% secure and it looks stock (from a distance!)
    -----------------------------------------------------
    Since RED is a non-streetable drag racer, no weather proofing gaskets were installed. If it rains, water will come in thru various gaps!

  • #2
    with those acorns sticking outta the roof might want to campaign this rig as the "Frankenstiva"

    Comment


    • #3
      Did you weigh the hatch? Before, after, total weight removed?
      A mechanic knows how; A technician knows why.

      Wrecked. Repairs in Progress"Frankie" 1957 Chevrolet 3100, NA 2bbl 283cuin, Muncy Granny 4sp, 3.90 Open Diff @ ~95K miles

      Wrecked. Repairs in Progress"Alice" 1991 Ford Festiva L, NA EFI B3, 5sp @150k miles

      Reassembling"Aurora" 1991 Ford Festiva L, NA EFI B3, 5sp @240k miles

      FB Festiva page: Jared Bennett
      Instagram: jaredbear82

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      • #4
        I did weigh everything but I'll have to hunt around for the exact numbers. Off the top of my head the rear hatch with glass and lock and hinges and rubber weather gaskets weighed in around 56-lbs.

        All lightened up but without a window (plan is to use 1/8 or 3/16" Plexiglas) gaskets locks or hinges but with the new mounting brackets and bolts I think it came in at around 24-lbs - so the lightening saved around 30-lbs.

        I can re-weigh the hatch tomorrow and let you know, but it was a worth while project.

        I have also sort of given up on weighing everything before and after as the only real weight that will count is the total weight of the car when it is all done.

        I do like the name of "Frankenstiva" !

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        • #5
          OK, I weighed the rear hatch today.

          With all the lightening, minus the rear window (to be plexiglass, so maybe 3-lbs more???), but with the brackets on the hatch and stainless fasteners, it weighs 12.6-lbs.

          The two brackets mounted inside the car probably weigh 1.2-lbs.

          So to convert to the bolt on light hatch, minus plexiglass, you are looking at only 13.8-lbs.

          I think someone said a factory rear hatch weighs 45-lbs, so you are saving in the neighborhood of 30-lbs. A worthwhile weight savings.

          I'm currently working on installing the lightweight rear bumper and making a single point jack fitting to be able to lift the rear of the car with a floor jacket. More on this in a couple of days, but the lightweight rear bumper is a HUGE weight savings.

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          • #6
            Wow that is a lot of weight saved! When you say "the" light weight rear bumper, is that something in production, a lightened stock bumper, or a tubing bumper you made?
            A mechanic knows how; A technician knows why.

            Wrecked. Repairs in Progress"Frankie" 1957 Chevrolet 3100, NA 2bbl 283cuin, Muncy Granny 4sp, 3.90 Open Diff @ ~95K miles

            Wrecked. Repairs in Progress"Alice" 1991 Ford Festiva L, NA EFI B3, 5sp @150k miles

            Reassembling"Aurora" 1991 Ford Festiva L, NA EFI B3, 5sp @240k miles

            FB Festiva page: Jared Bennett
            Instagram: jaredbear82

            Comment


            • #7
              It's a lighten rear bumper. I'm taking it off the car tomorrow to weigh it and paint it - I'll get a bunch of pictures of it and write it all up.

              If you thought the rear hatch is a big weight savings, wait until you see the numbers on the bumper!

              Comment


              • #8
                Nice work Doug! I need to get out your way and check out the build!
                Contact me for information about Festiva Madness!
                Remember, FestYboy is inflatable , and Scitzz means crazy, YO!
                "Like I'm going to suggest we do the job right." ~Fecomatter May 28 2016.

                Comment


                • #9
                  Anyone is welcome any time to stop on by. Come by on a weekend and we can bar-b-que something.

                  Plus always looking for new ideas!

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                  • #10
                    Fecomatter is heading down 8th until the 15th for a stupid festy build we are doing, maybe we can swing out on a break. Quick 3 hour ride
                    Contact me for information about Festiva Madness!
                    Remember, FestYboy is inflatable , and Scitzz means crazy, YO!
                    "Like I'm going to suggest we do the job right." ~Fecomatter May 28 2016.

                    Comment


                    • #11
                      Originally posted by scitzz View Post
                      Fecomatter is heading down 8th until the 15th for a stupid festy build we are doing
                      Oh boy, is the build that has been #rumored for so long?
                      Will Samet

                      JDMSTIVA - Rest in Peace. Festiva of the Month, May '16 - Best Beater & Bad Luck Award, FMX - (Build Thread)

                      JDMSTIVA V2 - Racecar, Showcar, Work in Progress - (Build Thread)

                      1990 LX - B6D swapped, mostly stock.

                      How to find me:
                      Facebook messenger is the best way. m.me/willsamet
                      Feel free to PM me anytime!
                      Reddit / Snapchat / everywhere else: w4rky
                      Instagram/Twitter: @WILLSAMET

                      Comment


                      • #12
                        Originally posted by w4rkry View Post
                        Oh boy, is the build that has been #rumored for so long?
                        Just since FMX. Yes.
                        Contact me for information about Festiva Madness!
                        Remember, FestYboy is inflatable , and Scitzz means crazy, YO!
                        "Like I'm going to suggest we do the job right." ~Fecomatter May 28 2016.

                        Comment

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