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Thread: My speedo does not work !!! Help Please

  1. #16
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    Pounds Per Square Inch.. (PSI) is the same in any medium, whether it be Fresh water..Sea water, Air, Oil, or Outer space. There is no difference. Psi IS Psi..Period.

    There is no water in the speedo tube to the dashboard. It's air. Air is the barrier between the water at the Pito Tube and the speedo at the dashboard. They both combine to produce the same PSI. Just sayin. DJ
    Avatar: RELIANCE (1903) The Largest single masted sailing yacht ever built (Until 2004)...with over 16,000 square feet of sail. Successful Americas Cup Defender.
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    1986 Minx. SBC 350/260hp, Alpha I. Red, Honey.

  2. #17
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    Back to kindergarten, the tube came off in the drive/transom aseembly area..
    Cheers,
    Pismo
    1996 22 Classic
    Red with Stainless Windshield
    Stock Gen VI 502 Magnum MPI-415hp
    Stock Bravo I
    25" Mirage Plus
    74.5mph best @ 5050rpm GPS (Speedo said 80)
    27" Labbed Mirage Plus
    75.5mph best @ 4800rpm GPS (Speedo said 82)

  3. #18
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    My Minx, which originally came w/those same gauges(mid '80's) didn't have a tube
    in the drive. The boat was built w/an external pitot just to STBD of the drive.
    George Carter
    Central Florida
    gcarter763@aol.com
    http://kineticocentralfl.com/


    “If you have to argue your science by using fraud, your science is not valid"
    Professor Ian Plimer, Adilaide and Melbourne Universities

  4. #19
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    They are VDO Vangaurd series. It depends on the drive if it has an external or Integrated pitot.
    machinist ,bore it deeper,ream it bigger, and lap it to a fine finish



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  5. #20
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    Quote Originally Posted by gcarter View Post
    My Minx, which originally came w/those same gauges(mid '80's) didn't have a tube
    in the drive. The boat was built w/an external pitot just to STBD of the drive.
    The same with my Minx.
    And when the tube splits while underway, you cannot believe how much water you can dump in your bilge at speed.

    Ken

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