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Distributer Cap screw issue on merc 5.7-gctid825472

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  • Distributer Cap screw issue on merc 5.7-gctid825472

    I've got one screw (the one you can't see on the back) that is corroded and not a much of of head to get grip with screwdriver. I've tried get it to break it loose but quit before I did damage. Got any ideas? I'm using a flat blade screw driver, a Phillips doesn't seem to fit. Thanks k
    Kevin & Robyn
    Koppers Kove
    MMSI 338206107
    2001 Bayliner 2452
    5.7 B2 PT BRA3 17p

  • #2
    Reverse drill bit or a easy out.
    Be good, be happy, for tomorrow is promised to no man !

    1994 2452, 5.0l, Alpha gen. 2 drive. Sold ! Sold ! Sold !

    '86 / 19' Citation cuddy, Merc. 3.0L / 140 hp 86' , stringer drive. Sold ! Sold ! Sold !

    Manalapan N.J


    • #3
      Is it possible to clamp on some needle nose vise grips to the screw head to break it loose? PB blaster or equivalent prior
      Edmonds, WA
      "THE FIX" '93 2556
      Carbureted 383 Vortec-Bravo II
      The Rebuild Of My 2556
      My Misc. Projects


      • #4
        I usually drill a small hole and then use a Torx bit in a suitable size, the Torx bit wont expand the bolt but gives you a good grip when you carefully knock it in with a hammer

        1995 Bayliner 2452
        Alpha 1 Gen II
        2016 - 5.7 Vortec 4BBL
        Full Closed Cooling


        • #5
          You could just drill the head off so the cap can be lifted off. Then use vise grips on the screw. Or grab the distributor cap and break it off, probably needs replacing anyway if your screw is corroded. If the thread gets messed up, which it quite possibly is with that kind of corrosion, no big deal. Drill that out too and use a nut. I believe they are 10-32?
          Huntington Beach, California
          2018 Element 16
          Currently looking for 32xx in South Florida
          Former Bayliners: 3218, 2859, 2252, 1952


          • #6
            sacrifice the cap... break the distributor cap. then krill or pb blaster... it will come right out.
            cglazier - "Fiftybucks"
            1995 2855 7.4 bravo II